From a72f9cff232c6afd7aff8ab41b21d82779d8a086 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 16 Oct 2025 15:03:54 +0200
Subject: [PATCH 01/63] Elixir 1.19: Fix typing violation on struct updates in
 Pleroma.Marker
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

    warning: a struct for Pleroma.Marker is expected on struct update:

        %Pleroma.Marker{marker | user: user}

    but got type:

        dynamic()

    where "marker" was given the type:

        # type: dynamic()
        # from: lib/pleroma/marker.ex
        {:ok, marker}

    when defining the variable "marker", you must also pattern match on "%Pleroma.Marker{}".

    hint: given pattern matching is enough to catch typing errors, you may optionally convert the struct update into a map update. For example, instead of:

        user = some_function()
        %User{user | name: "John Doe"}

    it is enough to write:

        %User{} = user = some_function()
        %{user | name: "John Doe"}

    typing violation found at:
    │
 81 │       {:ok, marker} -> %__MODULE__{marker | user: user}
    │                        ~
    │
    └─ lib/pleroma/marker.ex:81:24: Pleroma.Marker.get_marker/2
---
 lib/pleroma/marker.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/marker.ex b/lib/pleroma/marker.ex
index 68b054e4d..4f645240e 100644
--- a/lib/pleroma/marker.ex
+++ b/lib/pleroma/marker.ex
@@ -78,7 +78,7 @@ defmodule Pleroma.Marker do
 
   defp get_marker(user, timeline) do
     case Repo.find_resource(get_query(user, timeline)) do
-      {:ok, marker} -> %__MODULE__{marker | user: user}
+      {:ok, %__MODULE__{} = marker} -> %__MODULE__{marker | user: user}
       _ -> %__MODULE__{timeline: timeline, user_id: user.id}
     end
   end

From 0fc046a75e0499a068cbdee82f9c559407a7521b Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 16 Oct 2025 15:06:02 +0200
Subject: [PATCH 02/63] Elixir 1.19: Fix typing violation on struct updates in
 MFA.Changeset
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

    warning: a struct for Pleroma.MFA.Settings is expected on struct update:

        %Pleroma.MFA.Settings{settings | enabled: false}

    but got type:

        dynamic()

    where "settings" was given the type:

        # type: dynamic()
        # from: lib/pleroma/mfa/changeset.ex:11:14
        settings = Pleroma.MFA.fetch_settings(Ecto.Changeset.apply_changes(changeset))

    when defining the variable "settings", you must also pattern match on "%Pleroma.MFA.Settings{}".

    hint: given pattern matching is enough to catch typing errors, you may optionally convert the struct update into a map update. For example, instead of:

        user = some_function()
        %User{user | name: "John Doe"}

    it is enough to write:

        %User{} = user = some_function()
        %{user | name: "John Doe"}

    typing violation found at:
    │
 17 │       put_change(changeset, %Settings{settings | enabled: false})
    │                             ~
    │
    └─ lib/pleroma/mfa/changeset.ex:17:29: Pleroma.MFA.Changeset.disable/2

---

    warning: a struct for Pleroma.MFA.Settings is expected on struct update:

        %Pleroma.MFA.Settings{
          settings
          | totp: %Pleroma.MFA.Settings.TOTP{confirmed: false, delivery_type: "app", secret: nil}
        }

    but got type:

        dynamic()

    where "settings" was given the type:

        # type: dynamic()
        # from: lib/pleroma/mfa/changeset.ex:23:74
        %Pleroma.User{multi_factor_authentication_settings: settings} = user

    when defining the variable "settings", you must also pattern match on "%Pleroma.MFA.Settings{}".

    hint: given pattern matching is enough to catch typing errors, you may optionally convert the struct update into a map update. For example, instead of:

        user = some_function()
        %User{user | name: "John Doe"}

    it is enough to write:

        %User{} = user = some_function()
        %{user | name: "John Doe"}

    typing violation found at:
    │
 25 │     |> put_change(%Settings{settings | totp: %Settings.TOTP{}})
    │                   ~
    │
    └─ lib/pleroma/mfa/changeset.ex:25:19: Pleroma.MFA.Changeset.disable_totp/1
---
 lib/pleroma/mfa/changeset.ex | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/pleroma/mfa/changeset.ex b/lib/pleroma/mfa/changeset.ex
index 3ec3cfe91..890cb2193 100644
--- a/lib/pleroma/mfa/changeset.ex
+++ b/lib/pleroma/mfa/changeset.ex
@@ -8,7 +8,7 @@ defmodule Pleroma.MFA.Changeset do
   alias Pleroma.User
 
   def disable(%Ecto.Changeset{} = changeset, force \\ false) do
-    settings =
+    %Settings{} = settings =
       changeset
       |> Ecto.Changeset.apply_changes()
       |> MFA.fetch_settings()
@@ -20,20 +20,20 @@ defmodule Pleroma.MFA.Changeset do
     end
   end
 
-  def disable_totp(%User{multi_factor_authentication_settings: settings} = user) do
+  def disable_totp(%User{multi_factor_authentication_settings: %Settings{} = settings} = user) do
     user
     |> put_change(%Settings{settings | totp: %Settings.TOTP{}})
   end
 
-  def confirm_totp(%User{multi_factor_authentication_settings: settings} = user) do
-    totp_settings = %Settings.TOTP{settings.totp | confirmed: true}
+  def confirm_totp(%User{multi_factor_authentication_settings: %Settings{} = settings} = user) do
+    totp_settings = %Settings.TOTP{%Settings.TOTP{} = settings.totp | confirmed: true}
 
     user
     |> put_change(%Settings{settings | totp: totp_settings, enabled: true})
   end
 
   def setup_totp(%User{} = user, attrs) do
-    mfa_settings = MFA.fetch_settings(user)
+    %Settings{} = mfa_settings = MFA.fetch_settings(user)
 
     totp_settings =
       %Settings.TOTP{}
@@ -46,7 +46,7 @@ defmodule Pleroma.MFA.Changeset do
   def cast_backup_codes(%User{} = user, codes) do
     user
     |> put_change(%Settings{
-      user.multi_factor_authentication_settings
+      %Settings{} = user.multi_factor_authentication_settings
       | backup_codes: codes
     })
   end

From 0d3085937ca728c572f19798d21dce12dcf7b89e Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 16 Oct 2025 15:09:03 +0200
Subject: [PATCH 03/63] Elixir 1.19: Fix typing violation on struct updates in
 Pleroma.Upload
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

    warning: a struct for Pleroma.Upload is expected on struct update:

        %Pleroma.Upload{
          upload
          | path:
              case upload.path do
                x when x === false or x === nil ->
                  <<to_string(upload.id)::binary, "/", to_string(upload.name)::binary>>

                x ->
                  x
              end
        }

    but got type:

        dynamic()

    where "upload" was given the type:

        # type: dynamic()
        # from: lib/pleroma/upload.ex:95:24
        {:ok, upload} <- prepare_upload(upload, opts)

    when defining the variable "upload", you must also pattern match on "%Pleroma.Upload{}".

    hint: given pattern matching is enough to catch typing errors, you may optionally convert the struct update into a map update. For example, instead of:

        user = some_function()
        %User{user | name: "John Doe"}

    it is enough to write:

        %User{} = user = some_function()
        %{user | name: "John Doe"}

    typing violation found at:
    │
 96 │          upload = %__MODULE__{upload | path: upload.path || "#{upload.id}/#{upload.name}"},
    │                   ~
    │
    └─ lib/pleroma/upload.ex:96:19: Pleroma.Upload.store/2
---
 lib/pleroma/upload.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index 06d8005bc..350ff6cb3 100644
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -93,7 +93,7 @@ defmodule Pleroma.Upload do
   def store(upload, opts \\ []) do
     opts = get_opts(opts)
 
-    with {:ok, upload} <- prepare_upload(upload, opts),
+    with {:ok, %__MODULE__{} = upload} <- prepare_upload(upload, opts),
          upload = %__MODULE__{upload | path: upload.path || "#{upload.id}/#{upload.name}"},
          {:ok, upload} <- Pleroma.Upload.Filter.filter(opts.filters, upload),
          description = get_description(upload),

From 6f62cb0ed38c5d2bbdb6e304a287553bad8584f1 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 16 Oct 2025 15:09:51 +0200
Subject: [PATCH 04/63] Elixir 1.19: Fix typing violation on struct updates in
 Web.ApiSpec.Cast*
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

     warning: a struct for Plug.Conn is expected on struct update:

         %Plug.Conn{conn | query_params: query_params}

     but got type:

         dynamic()

     where "conn" was given the type:

         # type: dynamic()
         # from: lib/pleroma/web/api_spec/cast_and_validate.ex:109:43
         conn

     when defining the variable "conn", you must also pattern match on "%Plug.Conn{}".

     hint: given pattern matching is enough to catch typing errors, you may optionally convert the struct update into a map update. For example, instead of:

         user = some_function()
         %User{user | name: "John Doe"}

     it is enough to write:

         %User{} = user = some_function()
         %{user | name: "John Doe"}

     typing violation found at:
     │
 133 │         conn = %Conn{conn | query_params: query_params}
     │                ~
     │
     └─ lib/pleroma/web/api_spec/cast_and_validate.ex:133:16: Pleroma.Web.ApiSpec.CastAndValidate.cast_and_validate/6
---
 lib/pleroma/web/api_spec/cast_and_validate.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/web/api_spec/cast_and_validate.ex b/lib/pleroma/web/api_spec/cast_and_validate.ex
index 672d1c4a1..57ea8e9b3 100644
--- a/lib/pleroma/web/api_spec/cast_and_validate.ex
+++ b/lib/pleroma/web/api_spec/cast_and_validate.ex
@@ -106,7 +106,7 @@ defmodule Pleroma.Web.ApiSpec.CastAndValidate do
     OpenApiSpex.cast_and_validate(spec, operation, conn, content_type, cast_opts)
   end
 
-  defp cast_and_validate(spec, operation, conn, content_type, false = _strict, cast_opts) do
+  defp cast_and_validate(spec, operation, %Conn{} = conn, content_type, false = _strict, cast_opts) do
     case OpenApiSpex.cast_and_validate(spec, operation, conn, content_type) do
       {:ok, conn} ->
         {:ok, conn}

From 7c79e4416f78b317d8a3bda4cacd23f3d955df46 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 16 Oct 2025 15:11:33 +0200
Subject: [PATCH 05/63] Elixir 1.19: Fix typing violation on struct updates in
 Web.ApiSpec.Rend*
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

    warning: a struct for OpenApiSpex.Cast.Error is expected on struct update:

        %OpenApiSpex.Cast.Error{err | name: err.value}

    but got type:

        dynamic(%{..., name: nil, reason: :invalid_enum})

    where "err" was given the type:

        # type: dynamic(%{..., name: nil, reason: :invalid_enum})
        # from: lib/pleroma/web/api_spec/render_error.ex:20:45
        %{name: nil, reason: :invalid_enum} = err

    when defining the variable "err", you must also pattern match on "%OpenApiSpex.Cast.Error{}".

    hint: given pattern matching is enough to catch typing errors, you may optionally convert the struct update into a map update. For example, instead of:

        user = some_function()
        %User{user | name: "John Doe"}

    it is enough to write:

        %User{} = user = some_function()
        %{user | name: "John Doe"}

    typing violation found at:
    │
 21 │           %OpenApiSpex.Cast.Error{err | name: err.value}
    │           ~
    │
    └─ lib/pleroma/web/api_spec/render_error.ex:21:11: Pleroma.Web.ApiSpec.RenderError.call/2
---
 lib/pleroma/web/api_spec/render_error.ex | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/web/api_spec/render_error.ex b/lib/pleroma/web/api_spec/render_error.ex
index 3539af6e4..acf510774 100644
--- a/lib/pleroma/web/api_spec/render_error.ex
+++ b/lib/pleroma/web/api_spec/render_error.ex
@@ -17,10 +17,10 @@ defmodule Pleroma.Web.ApiSpec.RenderError do
   def call(conn, errors) do
     errors =
       Enum.map(errors, fn
-        %{name: nil, reason: :invalid_enum} = err ->
+        %OpenApiSpex.Cast.Error{name: nil, reason: :invalid_enum} = err ->
           %OpenApiSpex.Cast.Error{err | name: err.value}
 
-        %{name: nil} = err ->
+        %OpenApiSpex.Cast.Error{name: nil} = err ->
           %OpenApiSpex.Cast.Error{err | name: List.last(err.path)}
 
         err ->

From 6a926bf605b6e33c0fe9242fc0b2c1b8f68b655d Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 16 Oct 2025 15:12:41 +0200
Subject: [PATCH 06/63] Elixir 1.19: Fix typing violation on struct updates in
 CommonAPI.Activity*
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

     warning: a struct for Pleroma.Web.CommonAPI.ActivityDraft is expected on struct update:

         %Pleroma.Web.CommonAPI.ActivityDraft{draft | object: object}

     but got type:

         dynamic()

     where "draft" was given the type:

         # type: dynamic()
         # from: lib/pleroma/web/common_api/activity_draft.ex:91:22
         draft

     when defining the variable "draft", you must also pattern match on "%Pleroma.Web.CommonAPI.ActivityDraft{}".

     hint: given pattern matching is enough to catch typing errors, you may optionally convert the struct update into a map update. For example, instead of:

         user = some_function()
         %User{user | name: "John Doe"}

     it is enough to write:

         %User{} = user = some_function()
         %{user | name: "John Doe"}

     typing violation found at:
     │
 102 │     %__MODULE__{draft | object: object}
     │     ~
     │
     └─ lib/pleroma/web/common_api/activity_draft.ex:102:5: Pleroma.Web.CommonAPI.ActivityDraft.listen_object/1
---
 lib/pleroma/web/common_api/activity_draft.ex | 46 ++++++++++----------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/lib/pleroma/web/common_api/activity_draft.ex b/lib/pleroma/web/common_api/activity_draft.ex
index c0b98508c..c5959276a 100644
--- a/lib/pleroma/web/common_api/activity_draft.ex
+++ b/lib/pleroma/web/common_api/activity_draft.ex
@@ -88,7 +88,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     |> validate()
   end
 
-  defp listen_object(draft) do
+  defp listen_object(%__MODULE__{} = draft) do
     object =
       draft.params
       |> Map.take([:album, :artist, :title, :length])
@@ -102,20 +102,20 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     %__MODULE__{draft | object: object}
   end
 
-  defp put_params(draft, params) do
+  defp put_params(%__MODULE__{} = draft, params) do
     params = Map.put_new(params, :in_reply_to_status_id, params[:in_reply_to_id])
     %__MODULE__{draft | params: params}
   end
 
-  defp status(%{params: %{status: status}} = draft) do
+  defp status(%__MODULE__{params: %{status: status}} = draft) do
     %__MODULE__{draft | status: String.trim(status)}
   end
 
-  defp summary(%{params: params} = draft) do
+  defp summary(%__MODULE__{params: params} = draft) do
     %__MODULE__{draft | summary: Map.get(params, :spoiler_text, "")}
   end
 
-  defp full_payload(%{status: status, summary: summary} = draft) do
+  defp full_payload(%__MODULE__{status: status, summary: summary} = draft) do
     full_payload = String.trim(status <> summary)
 
     case Utils.validate_character_limit(full_payload, draft.attachments) do
@@ -124,7 +124,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     end
   end
 
-  defp attachments(%{params: params} = draft) do
+  defp attachments(%__MODULE__{params: params} = draft) do
     attachments = Utils.attachments_from_ids(params, draft.user)
     draft = %__MODULE__{draft | attachments: attachments}
 
@@ -134,9 +134,9 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     end
   end
 
-  defp in_reply_to(%{params: %{in_reply_to_status_id: ""}} = draft), do: draft
+  defp in_reply_to(%__MODULE__{params: %{in_reply_to_status_id: ""}} = draft), do: draft
 
-  defp in_reply_to(%{params: %{in_reply_to_status_id: id}} = draft) when is_binary(id) do
+  defp in_reply_to(%__MODULE__{params: %{in_reply_to_status_id: id}} = draft) when is_binary(id) do
     # If a post was deleted all its activities (except the newly added Delete) are purged too,
     # thus lookup by Create db ID will yield nil just as if it never existed in the first place.
     #
@@ -166,13 +166,13 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     end
   end
 
-  defp in_reply_to(%{params: %{in_reply_to_status_id: %Activity{} = in_reply_to}} = draft) do
+  defp in_reply_to(%__MODULE__{params: %{in_reply_to_status_id: %Activity{} = in_reply_to}} = draft) do
     %__MODULE__{draft | in_reply_to: in_reply_to}
   end
 
   defp in_reply_to(draft), do: draft
 
-  defp quote_post(%{params: %{quoted_status_id: id}} = draft) when not_empty_string(id) do
+  defp quote_post(%__MODULE__{params: %{quoted_status_id: id}} = draft) when not_empty_string(id) do
     case Activity.get_by_id_with_object(id) do
       %Activity{} = activity ->
         %__MODULE__{draft | quote_post: activity}
@@ -188,12 +188,12 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
 
   defp quote_post(draft), do: draft
 
-  defp in_reply_to_conversation(draft) do
+  defp in_reply_to_conversation(%__MODULE__{} = draft) do
     in_reply_to_conversation = Participation.get(draft.params[:in_reply_to_conversation_id])
     %__MODULE__{draft | in_reply_to_conversation: in_reply_to_conversation}
   end
 
-  defp visibility(%{params: params} = draft) do
+  defp visibility(%__MODULE__{params: params} = draft) do
     case CommonAPI.get_visibility(params, draft.in_reply_to, draft.in_reply_to_conversation) do
       {visibility, "direct"} when visibility != "direct" ->
         add_error(draft, dgettext("errors", "The message visibility must be direct"))
@@ -226,14 +226,14 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
 
   defp quoting_visibility(draft), do: draft
 
-  defp expires_at(draft) do
+  defp expires_at(%__MODULE__{} = draft) do
     case CommonAPI.check_expiry_date(draft.params[:expires_in]) do
       {:ok, expires_at} -> %__MODULE__{draft | expires_at: expires_at}
       {:error, message} -> add_error(draft, message)
     end
   end
 
-  defp poll(draft) do
+  defp poll(%__MODULE__{} = draft) do
     case Utils.make_poll_data(draft.params) do
       {:ok, {poll, poll_emoji}} ->
         %__MODULE__{draft | extra: poll, emoji: Map.merge(draft.emoji, poll_emoji)}
@@ -243,7 +243,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     end
   end
 
-  defp content(%{mentions: mentions} = draft) do
+  defp content(%__MODULE__{mentions: mentions} = draft) do
     {content_html, mentioned_users, tags} = Utils.make_content_html(draft)
 
     mentioned_ap_ids =
@@ -257,22 +257,22 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     %__MODULE__{draft | content_html: content_html, mentions: mentions, tags: tags}
   end
 
-  defp to_and_cc(draft) do
+  defp to_and_cc(%__MODULE__{} = draft) do
     {to, cc} = Utils.get_to_and_cc(draft)
     %__MODULE__{draft | to: to, cc: cc}
   end
 
-  defp context(draft) do
+  defp context(%__MODULE__{} = draft) do
     context = Utils.make_context(draft.in_reply_to, draft.in_reply_to_conversation)
     %__MODULE__{draft | context: context}
   end
 
-  defp sensitive(draft) do
+  defp sensitive(%__MODULE__{} = draft) do
     sensitive = draft.params[:sensitive]
     %__MODULE__{draft | sensitive: sensitive}
   end
 
-  defp language(draft) do
+  defp language(%__MODULE__{} = draft) do
     language =
       with language <- draft.params[:language],
            true <- good_locale_code?(language) do
@@ -284,7 +284,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     %__MODULE__{draft | language: language}
   end
 
-  defp object(draft) do
+  defp object(%__MODULE__{} = draft) do
     emoji = Map.merge(Pleroma.Emoji.Formatter.get_emoji_map(draft.full_payload), draft.emoji)
 
     # Sometimes people create posts with subject containing emoji,
@@ -328,12 +328,12 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     %__MODULE__{draft | object: object}
   end
 
-  defp preview?(draft) do
+  defp preview?(%__MODULE__{} = draft) do
     preview? = Pleroma.Web.Utils.Params.truthy_param?(draft.params[:preview])
     %__MODULE__{draft | preview?: preview?}
   end
 
-  defp changes(draft) do
+  defp changes(%__MODULE__{} = draft) do
     direct? = draft.visibility == "direct"
     additional = %{"cc" => draft.cc, "directMessage" => direct?}
 
@@ -359,7 +359,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
   defp with_valid(%{valid?: true} = draft, func), do: func.(draft)
   defp with_valid(draft, _func), do: draft
 
-  defp add_error(draft, message) do
+  defp add_error(%__MODULE__{} = draft, message) do
     %__MODULE__{draft | valid?: false, errors: [message | draft.errors]}
   end
 

From 9040434886526e082bf675e46e8cadb3f64e7fe9 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 9 Jan 2026 16:40:19 +0100
Subject: [PATCH 07/63] Elixir 1.19: Fix typing violations in ActivityPubTest

---
 test/pleroma/web/activity_pub/activity_pub_test.exs | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/test/pleroma/web/activity_pub/activity_pub_test.exs b/test/pleroma/web/activity_pub/activity_pub_test.exs
index 37ec87a9b..13146619a 100644
--- a/test/pleroma/web/activity_pub/activity_pub_test.exs
+++ b/test/pleroma/web/activity_pub/activity_pub_test.exs
@@ -1524,8 +1524,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
       %{test_file: test_file}
     end
 
-    test "strips / from filename", %{test_file: file} do
-      file = %Plug.Upload{file | filename: "../../../../../nested/bad.jpg"}
+    test "strips / from filename", %{test_file: %Plug.Upload{} = file} do
+      file = %{file | filename: "../../../../../nested/bad.jpg"}
       {:ok, %Object{} = object} = ActivityPub.upload(file)
       [%{"href" => href}] = object.data["url"]
       assert Regex.match?(~r"/bad.jpg$", href)
@@ -1786,10 +1786,10 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
     {:ok, list} = Pleroma.List.create(%{title: "foo"}, user)
     {:ok, list} = Pleroma.List.follow(list, member)
 
-    {:ok, activity} = CommonAPI.post(user, %{status: "foobar", visibility: "list:#{list.id}"})
+    {:ok, %Activity{} = activity} = CommonAPI.post(user, %{status: "foobar", visibility: "list:#{list.id}"})
 
     activity = Repo.preload(activity, :bookmark)
-    activity = %Activity{activity | thread_muted?: !!activity.thread_muted?}
+    activity = %{activity | thread_muted?: !!activity.thread_muted?}
 
     assert ActivityPub.fetch_activities([], %{user: user}) == [activity]
   end
@@ -1989,7 +1989,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
       assert User.following?(follower, old_user)
       assert User.following?(follower_move_opted_out, old_user)
 
-      assert {:ok, activity} = ActivityPub.move(old_user, new_user)
+      assert {:ok, %Activity{} = activity} = ActivityPub.move(old_user, new_user)
 
       assert %Activity{
                actor: ^old_ap_id,
@@ -2021,7 +2021,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
       assert User.following?(follower_move_opted_out, old_user)
       refute User.following?(follower_move_opted_out, new_user)
 
-      activity = %Activity{activity | object: nil}
+      activity = %{activity | object: nil}
 
       assert [%Notification{activity: ^activity}] = Notification.for_user(follower)
 

From 349d858fdade27c7a016a55ac69a435dadb59d2c Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 9 Jan 2026 16:42:26 +0100
Subject: [PATCH 08/63] Elixir 1.19: Fix typing violation in
 MediaControllerTest
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

warning: a struct for Plug.Upload is expected on struct update:

         %Plug.Upload{image | filename: "../../../../../nested/file.jpg"}

     but got type:

         dynamic()

     where "image" was given the type:

         # type: dynamic()
         # from: test/pleroma/web/mastodon_api/controllers/media_controller_test.exs:132:42
         %{conn: conn, image: image}

     when defining the variable "image", you must also pattern match on "%Plug.Upload{}".

     hint: given pattern matching is enough to catch typing errors, you may optionally convert the struct update into a map update. For example, instead of:

         user = some_function()
         %User{user | name: "John Doe"}

     it is enough to write:

         %User{} = user = some_function()
         %{user | name: "John Doe"}

     typing violation found at:
     │
 133 │       image = %Plug.Upload{
     │               ~
     │
     └─ test/pleroma/web/mastodon_api/controllers/media_controller_test.exs:133:15: Pleroma.Web.MastodonAPI.MediaControllerTest."test Upload media Do not allow nested filename"/1
---
 .../web/mastodon_api/controllers/media_controller_test.exs    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/pleroma/web/mastodon_api/controllers/media_controller_test.exs b/test/pleroma/web/mastodon_api/controllers/media_controller_test.exs
index ae86078d7..fc083fd0e 100644
--- a/test/pleroma/web/mastodon_api/controllers/media_controller_test.exs
+++ b/test/pleroma/web/mastodon_api/controllers/media_controller_test.exs
@@ -129,8 +129,8 @@ defmodule Pleroma.Web.MastodonAPI.MediaControllerTest do
       assert :ok == File.rm(Path.absname("test/tmp/large_binary.data"))
     end
 
-    test "Do not allow nested filename", %{conn: conn, image: image} do
-      image = %Plug.Upload{
+    test "Do not allow nested filename", %{conn: conn, image: %Plug.Upload{} = image} do
+      image = %{
         image
         | filename: "../../../../../nested/file.jpg"
       }

From f3d9880f07e70f4e83e25e13aab537e2ea3c89ba Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 9 Jan 2026 16:44:37 +0100
Subject: [PATCH 09/63] Elixir 1.19: Fix typing violation in RepoTest
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

warning: a struct for Pleroma.Web.OAuth.Token is expected on struct update:

        %Pleroma.Web.OAuth.Token{Pleroma.Factory.insert(:oauth_token) | user: user}

    but got type:

        dynamic()

    you must assign "Pleroma.Factory.insert(:oauth_token)" to variable and pattern match on "%Pleroma.Web.OAuth.Token{}".

    hint: given pattern matching is enough to catch typing errors, you may optionally convert the struct update into a map update. For example, instead of:

        user = some_function()
        %User{user | name: "John Doe"}

    it is enough to write:

        %User{} = user = some_function()
        %{user | name: "John Doe"}

    typing violation found at:
    │
 27 │       token = %Pleroma.Web.OAuth.Token{insert(:oauth_token) | user: user}
    │               ~
    │
    └─ test/pleroma/repo_test.exs:27:15: Pleroma.RepoTest."test get_assoc/2 get assoc from preloaded data"/1
---
 test/pleroma/repo_test.exs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/pleroma/repo_test.exs b/test/pleroma/repo_test.exs
index 9c0f5d028..721175bda 100644
--- a/test/pleroma/repo_test.exs
+++ b/test/pleroma/repo_test.exs
@@ -24,7 +24,8 @@ defmodule Pleroma.RepoTest do
   describe "get_assoc/2" do
     test "get assoc from preloaded data" do
       user = %User{name: "Agent Smith"}
-      token = %Pleroma.Web.OAuth.Token{insert(:oauth_token) | user: user}
+      %Pleroma.Web.OAuth.Token{} = token = insert(:oauth_token)
+      token = %{token | user: user}
       assert Repo.get_assoc(token, :user) == {:ok, user}
     end
 

From d1ce6f9833036aacc585963046043f1a5c4f5b14 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 9 Jan 2026 16:48:55 +0100
Subject: [PATCH 10/63] Elixir 1.19: Fix typing violation in MarkerTest
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

warning: a struct for Pleroma.Marker is expected on struct update:

        %Pleroma.Marker{refresh_record(marker) | unread_count: 2}

    but got type:

        dynamic()

    where "marker" was given the type:

        # type: dynamic()
        # from: test/pleroma/marker_test.exs:35:14
        marker = Pleroma.Factory.insert(:marker, user: user)

    you must assign "refresh_record(marker)" to variable and pattern match on "%Pleroma.Marker{}".

    hint: given pattern matching is enough to catch typing errors, you may optionally convert the struct update into a map update. For example, instead of:

        user = some_function()
        %User{user | name: "John Doe"}

    it is enough to write:

        %User{} = user = some_function()
        %{user | name: "John Doe"}

    typing violation found at:
    │
 43 │              ) == [%Marker{refresh_record(marker) | unread_count: 2}]
    │                    ~
    │
    └─ test/pleroma/marker_test.exs:43:20: Pleroma.MarkerTest."test get_markers/2 returns user markers"/1
---
 test/pleroma/marker_test.exs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/pleroma/marker_test.exs b/test/pleroma/marker_test.exs
index 819dde9be..7f573ac7a 100644
--- a/test/pleroma/marker_test.exs
+++ b/test/pleroma/marker_test.exs
@@ -36,11 +36,12 @@ defmodule Pleroma.MarkerTest do
       insert(:notification, user: user, activity: insert(:note_activity))
       insert(:notification, user: user, activity: insert(:note_activity))
       insert(:marker, timeline: "home", user: user)
+      %Marker{} = refreshed_marker = refresh_record(marker)
 
       assert Marker.get_markers(
                user,
                ["notifications"]
-             ) == [%Marker{refresh_record(marker) | unread_count: 2}]
+             ) == [%{refreshed_marker | unread_count: 2}]
     end
   end
 

From 5777d8e8d3c33bc70bb3cda6b7bb72592a310e16 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 9 Jan 2026 17:01:36 +0100
Subject: [PATCH 11/63] Elixir 1.19: Fix deprecation warning when invoking
 ParallelCompiler

warning: you must pass return_diagnostics: true when invoking Kernel.ParallelCompiler functions
  (elixir 1.19.5) lib/kernel/parallel_compiler.ex:324: Kernel.ParallelCompiler.spawn_workers/3
  (pleroma 2.10.0-7-ga7a74d5e-elixir-1-19+test) lib/pleroma/html.ex:13: Pleroma.HTML.compile_scrubbers/0
  (pleroma 2.10.0-7-ga7a74d5e-elixir-1-19+test) lib/pleroma/application.ex:48: Pleroma.Application.start/2
  (kernel 10.5) application_master.erl:299: :application_master.start_it_old/4

warning: you must pass return_diagnostics: true when invoking Kernel.ParallelCompiler functions
  (elixir 1.19.5) lib/kernel/parallel_compiler.ex:324: Kernel.ParallelCompiler.spawn_workers/3
  (pleroma 2.10.0-7-ga7a74d5e-elixir-1-19+test) lib/pleroma/application.ex:121: Pleroma.Application.load_custom_modules/0
  (pleroma 2.10.0-7-ga7a74d5e-elixir-1-19+test) lib/pleroma/application.ex:60: Pleroma.Application.start/2
  (kernel 10.5) application_master.erl:299: :application_master.start_it_old/4
---
 lib/pleroma/utils.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/utils.ex b/lib/pleroma/utils.ex
index 73001c987..61d122a47 100644
--- a/lib/pleroma/utils.ex
+++ b/lib/pleroma/utils.ex
@@ -17,7 +17,7 @@ defmodule Pleroma.Utils do
     dir
     |> File.ls!()
     |> Enum.map(&Path.join(dir, &1))
-    |> Kernel.ParallelCompiler.compile()
+    |> Kernel.ParallelCompiler.compile(return_diagnostics: true)
   end
 
   @doc """

From 94ea3dffd1c49fadc6a80c34127ea59c7fd87311 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 9 Jan 2026 17:05:31 +0100
Subject: [PATCH 12/63] Elixir 1.19: Fix ConfigDBTest regex tests

It is not possible match regexes anymore as this worked by accident
previously. Instead, at least check that the sources of the regex (the
regex itself) match.

Notice the +1 difference in the regex Reference below.

1) test to_elixir_types/1 complex keyword with sigil (Pleroma.ConfigDBTest)
   test/pleroma/config_db_test.exs:460
   Assertion with == failed
   code:  assert ConfigDB.to_elixir_types([
            %{"tuple" => [":federated_timeline_removal", []]},
            %{"tuple" => [":reject", ["~r/comp[lL][aA][iI][nN]er/"]]},
            %{"tuple" => [":replace", []]}
          ]) == [federated_timeline_removal: [], reject: [~r/comp[lL][aA][iI][nN]er/], replace: []]
   left:  [federated_timeline_removal: [], reject: [%Regex{opts: [], re_pattern: {:re_pattern, 0, 0, 0, #Reference<0.230935836.591265794.259515>}, source: "comp[lL][aA][iI][nN]er"}], replace: []]
   right: [federated_timeline_removal: [], reject: [%Regex{opts: [], re_pattern: {:re_pattern, 0, 0, 0, #Reference<0.230935836.591265794.259516>}, source: "comp[lL][aA][iI][nN]er"}], replace: []]
   stacktrace:
     test/pleroma/config_db_test.exs:461: (test)
---
 test/pleroma/config_db_test.exs | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/test/pleroma/config_db_test.exs b/test/pleroma/config_db_test.exs
index d68e4e6fa..59beba48e 100644
--- a/test/pleroma/config_db_test.exs
+++ b/test/pleroma/config_db_test.exs
@@ -273,24 +273,24 @@ defmodule Pleroma.ConfigDBTest do
     end
 
     test "sigil" do
-      assert ConfigDB.to_elixir_types("~r[comp[lL][aA][iI][nN]er]") == ~r/comp[lL][aA][iI][nN]er/
+      assert ConfigDB.to_elixir_types("~r[comp[lL][aA][iI][nN]er]").source == ~r/comp[lL][aA][iI][nN]er/.source
     end
 
     test "link sigil" do
-      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/") == ~r/https:\/\/example.com/
+      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/").source == ~r/https:\/\/example.com/.source
     end
 
     test "link sigil with um modifiers" do
-      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/um") ==
-               ~r/https:\/\/example.com/um
+      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/um").source ==
+               ~r/https:\/\/example.com/um.source
     end
 
     test "link sigil with i modifier" do
-      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/i") == ~r/https:\/\/example.com/i
+      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/i").source == ~r/https:\/\/example.com/i.source
     end
 
     test "link sigil with s modifier" do
-      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/s") == ~r/https:\/\/example.com/s
+      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/s").source == ~r/https:\/\/example.com/s.source
     end
 
     test "raise if valid delimiter not found" do
@@ -460,11 +460,11 @@ defmodule Pleroma.ConfigDBTest do
     test "complex keyword with sigil" do
       assert ConfigDB.to_elixir_types([
                %{"tuple" => [":federated_timeline_removal", []]},
-               %{"tuple" => [":reject", ["~r/comp[lL][aA][iI][nN]er/"]]},
+               %{"tuple" => [":reject", [~r/comp[lL][aA][iI][nN]er/.source]]},
                %{"tuple" => [":replace", []]}
              ]) == [
                federated_timeline_removal: [],
-               reject: [~r/comp[lL][aA][iI][nN]er/],
+               reject: [~r/comp[lL][aA][iI][nN]er/.source],
                replace: []
              ]
     end

From cbacc0f146eaad98eb31574142a076658ae98f3f Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 9 Jan 2026 17:13:10 +0100
Subject: [PATCH 13/63] Elixir 1.19: Fix MRFTest regex tests

It is no longer possible to match regexes. Instead at least match that
the sources of the regexes (regexes themselves) are the same.

Notice the +1 Reference number below.

2) test subdomain_match/2 wildcard domains with one subdomain (Pleroma.Web.ActivityPub.MRFTest)
   test/pleroma/web/activity_pub/mrf_test.exs:36
   Assertion with == failed
   code:  assert regexes == [~r/^(.*\.)*unsafe.tld$/i]
   left:  [%Regex{opts: [:caseless], re_pattern: {:re_pattern, 1, 0, 0, #Reference<0.378940835.3277193222.129648>}, source: "^(.*\\.)*unsafe.tld$"}]
   right: [%Regex{opts: [:caseless], re_pattern: {:re_pattern, 1, 0, 0, #Reference<0.378940835.3277193222.129649>}, source: "^(.*\\.)*unsafe.tld$"}]
   stacktrace:
     test/pleroma/web/activity_pub/mrf_test.exs:39: (test)
---
 test/pleroma/web/activity_pub/mrf_test.exs | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/test/pleroma/web/activity_pub/mrf_test.exs b/test/pleroma/web/activity_pub/mrf_test.exs
index 25548e3da..6656a01b8 100644
--- a/test/pleroma/web/activity_pub/mrf_test.exs
+++ b/test/pleroma/web/activity_pub/mrf_test.exs
@@ -11,17 +11,21 @@ defmodule Pleroma.Web.ActivityPub.MRFTest do
   alias Pleroma.Web.ActivityPub.MRF
 
   test "subdomains_regex/1" do
-    assert MRF.subdomains_regex(["unsafe.tld", "*.unsafe.tld"]) == [
-             ~r/^unsafe.tld$/i,
-             ~r/^(.*\.)*unsafe.tld$/i
+    regexes = MRF.subdomains_regex(["unsafe.tld", "*.unsafe.tld"])
+    matchable_regexes = Enum.map(regexes, fn r -> r.source end)
+
+    assert matchable_regexes == [
+             ~r/^unsafe.tld$/i.source,
+             ~r/^(.*\.)*unsafe.tld$/i.source
            ]
   end
 
   describe "subdomain_match/2" do
     test "common domains" do
       regexes = MRF.subdomains_regex(["unsafe.tld", "unsafe2.tld"])
+      matchable_regexes = Enum.map(regexes, fn r -> r.source end)
 
-      assert regexes == [~r/^unsafe.tld$/i, ~r/^unsafe2.tld$/i]
+      assert matchable_regexes == [~r/^unsafe.tld$/i.source, ~r/^unsafe2.tld$/i.source]
 
       assert MRF.subdomain_match?(regexes, "unsafe.tld")
       assert MRF.subdomain_match?(regexes, "unsafe2.tld")
@@ -31,8 +35,9 @@ defmodule Pleroma.Web.ActivityPub.MRFTest do
 
     test "wildcard domains with one subdomain" do
       regexes = MRF.subdomains_regex(["*.unsafe.tld"])
+      matchable_regexes = Enum.map(regexes, fn r -> r.source end)
 
-      assert regexes == [~r/^(.*\.)*unsafe.tld$/i]
+      assert matchable_regexes == [~r/^(.*\.)*unsafe.tld$/i.source]
 
       assert MRF.subdomain_match?(regexes, "unsafe.tld")
       assert MRF.subdomain_match?(regexes, "sub.unsafe.tld")
@@ -42,8 +47,9 @@ defmodule Pleroma.Web.ActivityPub.MRFTest do
 
     test "wildcard domains with two subdomains" do
       regexes = MRF.subdomains_regex(["*.unsafe.tld"])
+      matchable_regexes = Enum.map(regexes, fn r -> r.source end)
 
-      assert regexes == [~r/^(.*\.)*unsafe.tld$/i]
+      assert matchable_regexes == [~r/^(.*\.)*unsafe.tld$/i.source]
 
       assert MRF.subdomain_match?(regexes, "unsafe.tld")
       assert MRF.subdomain_match?(regexes, "sub.sub.unsafe.tld")
@@ -53,8 +59,9 @@ defmodule Pleroma.Web.ActivityPub.MRFTest do
 
     test "matches are case-insensitive" do
       regexes = MRF.subdomains_regex(["UnSafe.TLD", "UnSAFE2.Tld"])
+      matchable_regexes = Enum.map(regexes, fn r -> r.source end)
 
-      assert regexes == [~r/^UnSafe.TLD$/i, ~r/^UnSAFE2.Tld$/i]
+      assert matchable_regexes == [~r/^UnSafe.TLD$/i.source, ~r/^UnSAFE2.Tld$/i.source]
 
       assert MRF.subdomain_match?(regexes, "UNSAFE.TLD")
       assert MRF.subdomain_match?(regexes, "UNSAFE2.TLD")

From 3c7cd8b043237fb0ece9c314b73e335dfd28ffcb Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 9 Jan 2026 17:28:06 +0100
Subject: [PATCH 14/63] Elixir 1.19: Fix Mastodon StatusControllerTest DateTime
 difference

---
 .../web/mastodon_api/controllers/status_controller_test.exs     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs b/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs
index 298e92366..8477ae03f 100644
--- a/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs
+++ b/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs
@@ -3068,7 +3068,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
              |> json_response_and_validate_schema(:ok)
 
     {:ok, a_expires_at, 0} = DateTime.from_iso8601(a_expires_at)
-    assert DateTime.diff(expires_at, a_expires_at) == 0
+    assert DateTime.diff(DateTime.truncate(expires_at, :second), DateTime.truncate(a_expires_at, :second)) == 0
 
     %{conn: conn} = oauth_access(["read:statuses"])
 

From dd2f0a32d8a0ab918cf840b937158e5b6d9418b3 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 9 Jan 2026 20:16:30 +0100
Subject: [PATCH 15/63] lint

---
 lib/pleroma/mfa/changeset.ex                         |  7 ++++---
 lib/pleroma/web/api_spec/cast_and_validate.ex        |  9 ++++++++-
 lib/pleroma/web/common_api/activity_draft.ex         | 10 +++++++---
 test/pleroma/config_db_test.exs                      | 12 ++++++++----
 test/pleroma/web/activity_pub/activity_pub_test.exs  |  3 ++-
 .../controllers/status_controller_test.exs           |  6 +++++-
 6 files changed, 34 insertions(+), 13 deletions(-)

diff --git a/lib/pleroma/mfa/changeset.ex b/lib/pleroma/mfa/changeset.ex
index 890cb2193..2045c3a7c 100644
--- a/lib/pleroma/mfa/changeset.ex
+++ b/lib/pleroma/mfa/changeset.ex
@@ -8,7 +8,8 @@ defmodule Pleroma.MFA.Changeset do
   alias Pleroma.User
 
   def disable(%Ecto.Changeset{} = changeset, force \\ false) do
-    %Settings{} = settings =
+    %Settings{} =
+      settings =
       changeset
       |> Ecto.Changeset.apply_changes()
       |> MFA.fetch_settings()
@@ -26,7 +27,7 @@ defmodule Pleroma.MFA.Changeset do
   end
 
   def confirm_totp(%User{multi_factor_authentication_settings: %Settings{} = settings} = user) do
-    totp_settings = %Settings.TOTP{%Settings.TOTP{} = settings.totp | confirmed: true}
+    totp_settings = %Settings.TOTP{(%Settings.TOTP{} = settings.totp) | confirmed: true}
 
     user
     |> put_change(%Settings{settings | totp: totp_settings, enabled: true})
@@ -46,7 +47,7 @@ defmodule Pleroma.MFA.Changeset do
   def cast_backup_codes(%User{} = user, codes) do
     user
     |> put_change(%Settings{
-      %Settings{} = user.multi_factor_authentication_settings
+      (%Settings{} = user.multi_factor_authentication_settings)
       | backup_codes: codes
     })
   end
diff --git a/lib/pleroma/web/api_spec/cast_and_validate.ex b/lib/pleroma/web/api_spec/cast_and_validate.ex
index 57ea8e9b3..95bd4d9cf 100644
--- a/lib/pleroma/web/api_spec/cast_and_validate.ex
+++ b/lib/pleroma/web/api_spec/cast_and_validate.ex
@@ -106,7 +106,14 @@ defmodule Pleroma.Web.ApiSpec.CastAndValidate do
     OpenApiSpex.cast_and_validate(spec, operation, conn, content_type, cast_opts)
   end
 
-  defp cast_and_validate(spec, operation, %Conn{} = conn, content_type, false = _strict, cast_opts) do
+  defp cast_and_validate(
+         spec,
+         operation,
+         %Conn{} = conn,
+         content_type,
+         false = _strict,
+         cast_opts
+       ) do
     case OpenApiSpex.cast_and_validate(spec, operation, conn, content_type) do
       {:ok, conn} ->
         {:ok, conn}
diff --git a/lib/pleroma/web/common_api/activity_draft.ex b/lib/pleroma/web/common_api/activity_draft.ex
index c5959276a..6c84ef656 100644
--- a/lib/pleroma/web/common_api/activity_draft.ex
+++ b/lib/pleroma/web/common_api/activity_draft.ex
@@ -136,7 +136,8 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
 
   defp in_reply_to(%__MODULE__{params: %{in_reply_to_status_id: ""}} = draft), do: draft
 
-  defp in_reply_to(%__MODULE__{params: %{in_reply_to_status_id: id}} = draft) when is_binary(id) do
+  defp in_reply_to(%__MODULE__{params: %{in_reply_to_status_id: id}} = draft)
+       when is_binary(id) do
     # If a post was deleted all its activities (except the newly added Delete) are purged too,
     # thus lookup by Create db ID will yield nil just as if it never existed in the first place.
     #
@@ -166,13 +167,16 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     end
   end
 
-  defp in_reply_to(%__MODULE__{params: %{in_reply_to_status_id: %Activity{} = in_reply_to}} = draft) do
+  defp in_reply_to(
+         %__MODULE__{params: %{in_reply_to_status_id: %Activity{} = in_reply_to}} = draft
+       ) do
     %__MODULE__{draft | in_reply_to: in_reply_to}
   end
 
   defp in_reply_to(draft), do: draft
 
-  defp quote_post(%__MODULE__{params: %{quoted_status_id: id}} = draft) when not_empty_string(id) do
+  defp quote_post(%__MODULE__{params: %{quoted_status_id: id}} = draft)
+       when not_empty_string(id) do
     case Activity.get_by_id_with_object(id) do
       %Activity{} = activity ->
         %__MODULE__{draft | quote_post: activity}
diff --git a/test/pleroma/config_db_test.exs b/test/pleroma/config_db_test.exs
index 59beba48e..98b56a146 100644
--- a/test/pleroma/config_db_test.exs
+++ b/test/pleroma/config_db_test.exs
@@ -273,11 +273,13 @@ defmodule Pleroma.ConfigDBTest do
     end
 
     test "sigil" do
-      assert ConfigDB.to_elixir_types("~r[comp[lL][aA][iI][nN]er]").source == ~r/comp[lL][aA][iI][nN]er/.source
+      assert ConfigDB.to_elixir_types("~r[comp[lL][aA][iI][nN]er]").source ==
+               ~r/comp[lL][aA][iI][nN]er/.source
     end
 
     test "link sigil" do
-      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/").source == ~r/https:\/\/example.com/.source
+      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/").source ==
+               ~r/https:\/\/example.com/.source
     end
 
     test "link sigil with um modifiers" do
@@ -286,11 +288,13 @@ defmodule Pleroma.ConfigDBTest do
     end
 
     test "link sigil with i modifier" do
-      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/i").source == ~r/https:\/\/example.com/i.source
+      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/i").source ==
+               ~r/https:\/\/example.com/i.source
     end
 
     test "link sigil with s modifier" do
-      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/s").source == ~r/https:\/\/example.com/s.source
+      assert ConfigDB.to_elixir_types("~r/https:\/\/example.com/s").source ==
+               ~r/https:\/\/example.com/s.source
     end
 
     test "raise if valid delimiter not found" do
diff --git a/test/pleroma/web/activity_pub/activity_pub_test.exs b/test/pleroma/web/activity_pub/activity_pub_test.exs
index 13146619a..9aafc41a5 100644
--- a/test/pleroma/web/activity_pub/activity_pub_test.exs
+++ b/test/pleroma/web/activity_pub/activity_pub_test.exs
@@ -1786,7 +1786,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
     {:ok, list} = Pleroma.List.create(%{title: "foo"}, user)
     {:ok, list} = Pleroma.List.follow(list, member)
 
-    {:ok, %Activity{} = activity} = CommonAPI.post(user, %{status: "foobar", visibility: "list:#{list.id}"})
+    {:ok, %Activity{} = activity} =
+      CommonAPI.post(user, %{status: "foobar", visibility: "list:#{list.id}"})
 
     activity = Repo.preload(activity, :bookmark)
     activity = %{activity | thread_muted?: !!activity.thread_muted?}
diff --git a/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs b/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs
index 8477ae03f..11e96a6ac 100644
--- a/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs
+++ b/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs
@@ -3068,7 +3068,11 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
              |> json_response_and_validate_schema(:ok)
 
     {:ok, a_expires_at, 0} = DateTime.from_iso8601(a_expires_at)
-    assert DateTime.diff(DateTime.truncate(expires_at, :second), DateTime.truncate(a_expires_at, :second)) == 0
+
+    assert DateTime.diff(
+             DateTime.truncate(expires_at, :second),
+             DateTime.truncate(a_expires_at, :second)
+           ) == 0
 
     %{conn: conn} = oauth_access(["read:statuses"])
 

From 926cad3a76972835d340a7cabb0e90b8c01f51eb Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sat, 10 Jan 2026 16:42:09 +0100
Subject: [PATCH 16/63] Elixir 1.19: Refactor Logger configuration to what
 Elixir 1.15+ expects

Elixir 1.19 started emitting warnings about our use of:
config :logger, :console and
config :logger, backends: []
which got split in 1.15 to :default_handler, :default_formatter, and
LoggerBackends.add(backend) respectively.

On Pleroma startup it is now necessary to add the additional logger
backends at runtime (done with configure_logger() in application.ex).
New config key :pleroma, :logger_backends: [] has replaced the older
backends array. The logger_backends package is now used to facilitate
usage of other logger backends besides the default one (:logger_std_h
from OTP).

Warnings were added to Pleroma startup to warn about the usage of
:logger, backends and additional logic was introduced to make addition
of ExSyslogger to admin's configuration less dumb.

Ref: https://hexdocs.pm/logger/1.15.0/Logger.html#module-backends-and-backwards-compatibility
---
 config/config.exs                |  9 +++++----
 config/dev.exs                   |  2 +-
 config/prod.exs                  |  3 +--
 config/test.exs                  |  6 +++---
 docs/configuration/cheatsheet.md | 25 +++++++++++++------------
 lib/pleroma/application.ex       | 32 ++++++++++++++++++++++++++++++++
 6 files changed, 55 insertions(+), 22 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index 5bf2c5c2e..08311146e 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -132,11 +132,12 @@ config :pleroma, Pleroma.Web.Endpoint,
     "SameSite=Lax"
   ]
 
-# Configures Elixir's Logger
-config :logger, backends: [:console]
+# config :logger, :console has been changed in 1.15+ and split into
+# :default_handler and :default_formatter. It started emitting warnings in 1.19.
+# See https://hexdocs.pm/logger/1.19.0/Logger.html#module-backends-and-backwards-compatibility
+config :logger, :default_handler, level: :debug
 
-config :logger, :console,
-  level: :debug,
+config :logger, :default_formatter,
   format: "\n$time $metadata[$level] $message\n",
   metadata: [:actor, :path, :type, :user]
 
diff --git a/config/dev.exs b/config/dev.exs
index 14cf4a6dc..e86bdb7fd 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -36,7 +36,7 @@ config :pleroma, Pleroma.Emails.Mailer, adapter: Swoosh.Adapters.Local
 # different ports.
 
 # Do not include timestamps in development logs
-config :logger, Logger.Backends.Console, format: "$metadata[$level] $message\n"
+config :logger, :default_formatter, format: "$metadata[$level] $message\n"
 
 # Set a higher stacktrace during development. Avoid configuring such
 # in production as building large stacktraces may be expensive.
diff --git a/config/prod.exs b/config/prod.exs
index 2d252bf02..1dfbbe937 100644
--- a/config/prod.exs
+++ b/config/prod.exs
@@ -20,8 +20,7 @@ config :pleroma, Pleroma.Web.Endpoint,
 config :phoenix, serve_endpoints: true
 
 # Do not print debug messages in production
-config :logger, Logger.Backends.Console, level: :info
-config :logger, :console, level: :info
+config :logger, :default_handler, level: :info
 config :logger, :ex_syslogger, level: :info
 
 # ## SSL Support
diff --git a/config/test.exs b/config/test.exs
index 9652b7d4b..bac5e4df3 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -15,9 +15,9 @@ config :pleroma, Pleroma.Captcha,
   method: Pleroma.Captcha.Mock
 
 # Print only warnings and errors during test
-config :logger, :console,
-  level: :warning,
-  format: "\n[$level] $message\n"
+config :logger, :default_handler, level: :warning
+
+config :logger, :default_formatter, format: "\n[$level] $message\n"
 
 config :pleroma, :auth, oauth_consumer_strategies: []
 
diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md
index 9efa1c8b3..2ab2652b8 100644
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@@ -858,12 +858,14 @@ Web Push Notifications configuration. You can use the mix task `mix web_push.gen
 * ``private_key``: VAPID private key
 
 ## :logger
-* `backends`: `:console` is used to send logs to stdout, `{ExSyslogger, :ex_syslogger}` to log to syslog
+* Logging to console/stdout is done by default, use `{ExSyslogger, :ex_syslogger}` to log to syslog
 
 An example to enable ONLY ExSyslogger (f/ex in ``prod.secret.exs``) with info and debug suppressed:
 ```elixir
-config :logger,
-  backends: [{ExSyslogger, :ex_syslogger}]
+config :pleroma,
+  logger_backends: [{ExSyslogger, :ex_syslogger}]
+
+config :logger, default_handler: false
 
 config :logger, :ex_syslogger,
   level: :warning
@@ -871,8 +873,8 @@ config :logger, :ex_syslogger,
 
 Another example, keeping console output and adding the pid to syslog output:
 ```elixir
-config :logger,
-  backends: [:console, {ExSyslogger, :ex_syslogger}]
+config :pleroma,
+  logger_backends: [{ExSyslogger, :ex_syslogger}]
 
 config :logger, :ex_syslogger,
   level: :warning,
@@ -883,23 +885,22 @@ See: [logger’s documentation](https://hexdocs.pm/logger/Logger.html) and [ex_s
 
 An example of logging info to local syslog, but debug to console:
 ```elixir
-config :logger,
-  backends: [ {ExSyslogger, :ex_syslogger}, :console ],
-  level: :info
+config :pleroma,
+  logger_backends: [ {ExSyslogger, :ex_syslogger}]
 
 config :logger, :ex_syslogger,
   level: :info,
   ident: "pleroma",
   format: "$metadata[$level] $message"
 
-config :logger, :console,
-  level: :debug,
+config :logger, :default_handler,
+  level: :debug
+
+config :logger, :default_formatter,
   format: "\n$time $metadata[$level] $message\n",
   metadata: [:request_id]
 ```
 
-
-
 ## Database options
 
 ### RUM indexing for full text search
diff --git a/lib/pleroma/application.ex b/lib/pleroma/application.ex
index 8e1c5de0d..7355a501a 100644
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@@ -43,6 +43,7 @@ defmodule Pleroma.Application do
     # every time the application is restarted, so we disable module
     # conflicts at runtime
     Code.compiler_options(ignore_module_conflict: true)
+    configure_logger()
     Pleroma.Telemetry.Logger.attach()
     Config.Holder.save_default()
     Pleroma.HTML.compile_scrubbers()
@@ -113,6 +114,37 @@ defmodule Pleroma.Application do
     Supervisor.start_link(children, opts)
   end
 
+  def configure_logger do
+    if Application.get_env(:logger, :backends) do
+      Logger.warning(
+        "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. Use 'config :pleroma, :logger_backends: [...]' instead."
+      )
+    end
+
+    Config.get([:logger_backends], [])
+    |> Enum.each(fn backend ->
+      backend = backend_to_logger(backend)
+
+      case LoggerBackends.add(backend) do
+        {:ok, _} ->
+          Logger.debug("Successfully added logger backend: #{inspect(backend)}")
+
+        {:error, reason} ->
+          Logger.error("Failed to add logger backend #{inspect(backend)}: #{inspect(reason)}")
+      end
+    end)
+  end
+
+  defp backend_to_logger({:ex_syslogger = backend, name}) do
+    Logger.warning(
+      "Configuration {:#{backend}, :#{name}} is incorrect. Use {ExSyslogger, :#{name}} instead!"
+    )
+
+    {ExSyslogger, name}
+  end
+
+  defp backend_to_logger(backend), do: backend
+
   def load_custom_modules do
     dir = Config.get([:modules, :runtime_dir])
 

From 0393f0f92dcd68f7615b98139a35055d272e242a Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Mon, 12 Jan 2026 18:03:24 +0100
Subject: [PATCH 17/63] Elixir 1.19: Move Logger backends under a specific
 config key

---
 docs/configuration/cheatsheet.md | 12 ++++++------
 lib/pleroma/application.ex       |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md
index 2ab2652b8..01d81f6ca 100644
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@@ -862,8 +862,8 @@ Web Push Notifications configuration. You can use the mix task `mix web_push.gen
 
 An example to enable ONLY ExSyslogger (f/ex in ``prod.secret.exs``) with info and debug suppressed:
 ```elixir
-config :pleroma,
-  logger_backends: [{ExSyslogger, :ex_syslogger}]
+config :pleroma, :logger,
+  backends: [{ExSyslogger, :ex_syslogger}]
 
 config :logger, default_handler: false
 
@@ -873,8 +873,8 @@ config :logger, :ex_syslogger,
 
 Another example, keeping console output and adding the pid to syslog output:
 ```elixir
-config :pleroma,
-  logger_backends: [{ExSyslogger, :ex_syslogger}]
+config :pleroma, :logger,
+  backends: [{ExSyslogger, :ex_syslogger}]
 
 config :logger, :ex_syslogger,
   level: :warning,
@@ -885,8 +885,8 @@ See: [logger’s documentation](https://hexdocs.pm/logger/Logger.html) and [ex_s
 
 An example of logging info to local syslog, but debug to console:
 ```elixir
-config :pleroma,
-  logger_backends: [ {ExSyslogger, :ex_syslogger}]
+config :pleroma, :logger,
+  backends: [ {ExSyslogger, :ex_syslogger}]
 
 config :logger, :ex_syslogger,
   level: :info,
diff --git a/lib/pleroma/application.ex b/lib/pleroma/application.ex
index 7355a501a..ce5b4f8d6 100644
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@@ -117,11 +117,11 @@ defmodule Pleroma.Application do
   def configure_logger do
     if Application.get_env(:logger, :backends) do
       Logger.warning(
-        "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. Use 'config :pleroma, :logger_backends: [...]' instead."
+        "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. Use 'config :pleroma, :logger, backends: [...]' instead."
       )
     end
 
-    Config.get([:logger_backends], [])
+    Config.get([:logger, :backends], [])
     |> Enum.each(fn backend ->
       backend = backend_to_logger(backend)
 

From 3790e6786cce376cbabf2588beed27d0daf9c55c Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Mon, 12 Jan 2026 18:21:46 +0100
Subject: [PATCH 18/63] Only warn about bad clear_config usage if warned usage
 is met

---
 test/support/helpers.ex | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/support/helpers.ex b/test/support/helpers.ex
index 7fa6c31a4..259180e8f 100644
--- a/test/support/helpers.ex
+++ b/test/support/helpers.ex
@@ -73,7 +73,8 @@ defmodule Pleroma.Tests.Helpers do
   defmacro clear_config(config_path, temp_setting) do
     # NOTE: `clear_config([section, key], value)` != `clear_config([section], key: value)` (!)
     # Displaying a warning to prevent unintentional clearing of all but one keys in section
-    if Keyword.keyword?(temp_setting) and length(temp_setting) == 1 do
+    if is_list(config_path) and length(config_path) == 1 and Keyword.keyword?(temp_setting) and
+         Keyword.keys(temp_setting) == [:key] do
       Logger.warning(
         "Please change `clear_config([section], key: value)` to `clear_config([section, key], value)`"
       )

From eee54a9226b1b4642bb2a71daa0921ba0022ce48 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Mon, 12 Jan 2026 18:24:11 +0100
Subject: [PATCH 19/63] Elixir 1.19: Add tests for new Logger configuration

---
 test/pleroma/application_test.exs | 37 +++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 test/pleroma/application_test.exs

diff --git a/test/pleroma/application_test.exs b/test/pleroma/application_test.exs
new file mode 100644
index 000000000..bff44f4ff
--- /dev/null
+++ b/test/pleroma/application_test.exs
@@ -0,0 +1,37 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2026 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.ApplicationTest do
+  use Pleroma.DataCase
+
+  import ExUnit.CaptureLog
+
+  # clear_config/2 can only manipulate env under :pleroma.
+  describe "config :logger, backends: []" do
+    setup do
+      Application.put_env(:logger, :backends, [:console, {ExSyslogger, :ex_syslogger}])
+
+      on_exit(fn ->
+        Application.delete_env(:logger, :backends) end)
+    end
+
+    test "warns on deprecated syntax" do
+      assert capture_log(fn -> Pleroma.Application.configure_logger() end) =~
+        "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. Use 'config :pleroma, :logger, backends: [...]' instead."
+    end
+  end
+
+  describe "config :pleroma, :logger, backends: [{:ex_syslogger, :ex_syslogger}]" do
+    setup do
+      clear_config([:logger, :backends], [{:ex_syslogger, :ex_syslogger}])
+    end
+
+    test "is handled" do
+      log = capture_log(fn -> Pleroma.Application.configure_logger() end)
+
+      assert log =~ "Configuration {:ex_syslogger, :ex_syslogger} is incorrect. Use {ExSyslogger, :ex_syslogger} instead!"
+      assert log =~ "Successfully added logger backend: {ExSyslogger, :ex_syslogger}"
+    end
+  end
+end

From 3ebf4b105629b137f620de7b71167463ad3ca6be Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Mon, 12 Jan 2026 19:31:15 +0100
Subject: [PATCH 20/63] Elixir 1.19: Move deprecated logger syntax check to
 DeprecationWarnings

---
 lib/pleroma/application.ex                      |  6 ------
 lib/pleroma/config/deprecation_warnings.ex      | 17 ++++++++++++++++-
 test/pleroma/application_test.exs               | 15 ---------------
 .../config/deprecation_warnings_test.exs        | 15 +++++++++++++++
 4 files changed, 31 insertions(+), 22 deletions(-)

diff --git a/lib/pleroma/application.ex b/lib/pleroma/application.ex
index ce5b4f8d6..1e80c6249 100644
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@@ -115,12 +115,6 @@ defmodule Pleroma.Application do
   end
 
   def configure_logger do
-    if Application.get_env(:logger, :backends) do
-      Logger.warning(
-        "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. Use 'config :pleroma, :logger, backends: [...]' instead."
-      )
-    end
-
     Config.get([:logger, :backends], [])
     |> Enum.each(fn backend ->
       backend = backend_to_logger(backend)
diff --git a/lib/pleroma/config/deprecation_warnings.ex b/lib/pleroma/config/deprecation_warnings.ex
index 58d164dc7..8dabd728f 100644
--- a/lib/pleroma/config/deprecation_warnings.ex
+++ b/lib/pleroma/config/deprecation_warnings.ex
@@ -218,7 +218,8 @@ defmodule Pleroma.Config.DeprecationWarnings do
       check_quarantined_instances_tuples(),
       check_transparency_exclusions_tuples(),
       check_simple_policy_tuples(),
-      check_exiftool_filter()
+      check_exiftool_filter(),
+      check_deprecated_logger_config()
     ]
     |> Enum.reduce(:ok, fn
       :ok, :ok -> :ok
@@ -415,4 +416,18 @@ defmodule Pleroma.Config.DeprecationWarnings do
       :ok
     end
   end
+
+  @spec check_deprecated_logger_config() :: :ok | :error
+  def check_deprecated_logger_config() do
+    if Application.get_env(:logger, :backends) do
+      Logger.warning(
+        "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. " <>
+        "Use 'config :pleroma, :logger, backends: [...]' instead."
+      )
+
+      :error
+    else
+      :ok
+    end
+  end
 end
diff --git a/test/pleroma/application_test.exs b/test/pleroma/application_test.exs
index bff44f4ff..afe628732 100644
--- a/test/pleroma/application_test.exs
+++ b/test/pleroma/application_test.exs
@@ -7,21 +7,6 @@ defmodule Pleroma.ApplicationTest do
 
   import ExUnit.CaptureLog
 
-  # clear_config/2 can only manipulate env under :pleroma.
-  describe "config :logger, backends: []" do
-    setup do
-      Application.put_env(:logger, :backends, [:console, {ExSyslogger, :ex_syslogger}])
-
-      on_exit(fn ->
-        Application.delete_env(:logger, :backends) end)
-    end
-
-    test "warns on deprecated syntax" do
-      assert capture_log(fn -> Pleroma.Application.configure_logger() end) =~
-        "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. Use 'config :pleroma, :logger, backends: [...]' instead."
-    end
-  end
-
   describe "config :pleroma, :logger, backends: [{:ex_syslogger, :ex_syslogger}]" do
     setup do
       clear_config([:logger, :backends], [{:ex_syslogger, :ex_syslogger}])
diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index fca2324ff..1491f4ea3 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -388,4 +388,19 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
            end) =~
              "Your config is using the old namespace for the Shoutbox configuration."
   end
+
+  describe "check_deprecated_logger_config" do
+    setup do
+      Application.put_env(:logger, :backends, [:console, {ExSyslogger, :ex_syslogger}])
+
+      on_exit(fn ->
+        Application.delete_env(:logger, :backends) end)
+    end
+
+    test "warns on deprecated syntax" do
+      assert capture_log(fn -> Pleroma.Config.DeprecationWarnings.check_deprecated_logger_config() end) =~
+        "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. Use 'config :pleroma, :logger, backends: [...]' instead."
+    end
+  end
+
 end

From 39409a784df0a726aee3a6e48769344d83cd81f2 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Mon, 12 Jan 2026 19:35:12 +0100
Subject: [PATCH 21/63] Elixir 1.19: Warn on adding :console to Logger backends

Logger.Backend.Console still exists, but it is unused in our
configuration. Instead logging to console is done from Logger's
"default_handler".
---
 lib/pleroma/application.ex        | 28 +++++++++++++++++++---------
 test/pleroma/application_test.exs | 11 +++++++++++
 2 files changed, 30 insertions(+), 9 deletions(-)

diff --git a/lib/pleroma/application.ex b/lib/pleroma/application.ex
index 1e80c6249..0e8723251 100644
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@@ -117,27 +117,37 @@ defmodule Pleroma.Application do
   def configure_logger do
     Config.get([:logger, :backends], [])
     |> Enum.each(fn backend ->
-      backend = backend_to_logger(backend)
+      case backend_to_logger(backend) do
+        {:ok, logger} ->
+          add_logger(logger)
 
-      case LoggerBackends.add(backend) do
-        {:ok, _} ->
-          Logger.debug("Successfully added logger backend: #{inspect(backend)}")
-
-        {:error, reason} ->
-          Logger.error("Failed to add logger backend #{inspect(backend)}: #{inspect(reason)}")
+        {:error, :console_backend} ->
+          Logger.warning(":console is no longer considered a backend and is enabled by default")
       end
     end)
   end
 
+  defp add_logger(backend) do
+    case LoggerBackends.add(backend) do
+      {:ok, _} ->
+        Logger.debug("Successfully added logger backend: #{inspect(backend)}")
+
+      {:error, reason} ->
+        Logger.error("Failed to add logger backend #{inspect(backend)}: #{inspect(reason)}")
+    end
+  end
+
+  defp backend_to_logger(:console), do: {:error, :console_backend}
+
   defp backend_to_logger({:ex_syslogger = backend, name}) do
     Logger.warning(
       "Configuration {:#{backend}, :#{name}} is incorrect. Use {ExSyslogger, :#{name}} instead!"
     )
 
-    {ExSyslogger, name}
+    {:ok, {ExSyslogger, name}}
   end
 
-  defp backend_to_logger(backend), do: backend
+  defp backend_to_logger(backend), do: {:ok, backend}
 
   def load_custom_modules do
     dir = Config.get([:modules, :runtime_dir])
diff --git a/test/pleroma/application_test.exs b/test/pleroma/application_test.exs
index afe628732..48f87818f 100644
--- a/test/pleroma/application_test.exs
+++ b/test/pleroma/application_test.exs
@@ -19,4 +19,15 @@ defmodule Pleroma.ApplicationTest do
       assert log =~ "Successfully added logger backend: {ExSyslogger, :ex_syslogger}"
     end
   end
+
+  describe "config :pleroma, :logger, :backends: [:console]" do
+    setup do
+      clear_config([:logger, :backends], [:console])
+    end
+
+    test "emits a warning" do
+      assert capture_log(fn -> Pleroma.Application.configure_logger() end) =~
+        ":console is no longer considered a backend and is enabled by default"
+    end
+  end
 end

From 6744a86fe3a70834aac0c248f5b1c4d0680278fe Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 13 Jan 2026 00:36:15 +0100
Subject: [PATCH 22/63] Elixir 1.19: Disable logging with colors in test
 environment

Can break some tests capture logs and then match on an expected text.
Since color codes end up being in the captured log.
---
 config/test.exs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/config/test.exs b/config/test.exs
index bac5e4df3..5b7f3b1ed 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -17,7 +17,11 @@ config :pleroma, Pleroma.Captcha,
 # Print only warnings and errors during test
 config :logger, :default_handler, level: :warning
 
-config :logger, :default_formatter, format: "\n[$level] $message\n"
+config :logger, :default_formatter,
+  format: "\n[$level] $message\n",
+  colors: [
+    enabled: false
+  ]
 
 config :pleroma, :auth, oauth_consumer_strategies: []
 

From 17a563aeb41e4f2ec18788cf5a58a1a928044a6e Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 13 Jan 2026 00:39:48 +0100
Subject: [PATCH 23/63] Elixir 1.19: Inject @compile autoload opt to MRF
 policies

Descriptions of MRF policies are gathered at compile-time and use
Pleroma.Docs.Generator.list_behaviour_implementations func, which
depends on modules implementing the queried behaviour to be loaded.
Otherwise descriptions for MRFs can be missing from the AdminAPI route.

Note: @behaviour cannot be injected in the __using__ macro. It causes a
loop in the compiler which leads to memory exhaustion. Hence why
@behaviour is still defined separately in the MRFs.
---
 .../web/activity_pub/mrf/activity_expiration_policy.ex    | 2 ++
 lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex | 6 +++---
 lib/pleroma/web/activity_pub/mrf/anti_link_spam_policy.ex | 4 +++-
 .../web/activity_pub/mrf/anti_mention_spam_policy.ex      | 4 +++-
 lib/pleroma/web/activity_pub/mrf/drop_policy.ex           | 4 +++-
 lib/pleroma/web/activity_pub/mrf/emoji_policy.ex          | 4 +++-
 lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex   | 6 ++++--
 lib/pleroma/web/activity_pub/mrf/follow_bot_policy.ex     | 3 +++
 .../web/activity_pub/mrf/force_bot_unlisted_policy.ex     | 7 +++++--
 lib/pleroma/web/activity_pub/mrf/force_mention.ex         | 3 ++-
 .../web/activity_pub/mrf/force_mentions_in_content.ex     | 4 +++-
 lib/pleroma/web/activity_pub/mrf/hashtag_policy.ex        | 4 +++-
 lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex     | 7 ++++---
 lib/pleroma/web/activity_pub/mrf/inline_quote_policy.ex   | 2 ++
 lib/pleroma/web/activity_pub/mrf/keyword_policy.ex        | 6 ++++--
 .../web/activity_pub/mrf/media_proxy_warming_policy.ex    | 2 ++
 lib/pleroma/web/activity_pub/mrf/mention_policy.ex        | 3 ++-
 lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex       | 2 ++
 lib/pleroma/web/activity_pub/mrf/no_op_policy.ex          | 2 ++
 .../web/activity_pub/mrf/no_placeholder_text_policy.ex    | 2 ++
 lib/pleroma/web/activity_pub/mrf/normalize_markup.ex      | 4 +++-
 lib/pleroma/web/activity_pub/mrf/nsfw_api_policy.ex       | 5 ++++-
 lib/pleroma/web/activity_pub/mrf/object_age_policy.ex     | 6 ++++--
 lib/pleroma/web/activity_pub/mrf/policy.ex                | 8 ++++++++
 lib/pleroma/web/activity_pub/mrf/quiet_reply.ex           | 4 +++-
 .../web/activity_pub/mrf/quote_to_link_tag_policy.ex      | 2 ++
 lib/pleroma/web/activity_pub/mrf/reject_non_public.ex     | 3 ++-
 lib/pleroma/web/activity_pub/mrf/remote_report_policy.ex  | 2 ++
 lib/pleroma/web/activity_pub/mrf/simple_policy.ex         | 2 ++
 lib/pleroma/web/activity_pub/mrf/steal_emoji_policy.ex    | 6 ++++--
 lib/pleroma/web/activity_pub/mrf/subchain_policy.ex       | 4 +++-
 lib/pleroma/web/activity_pub/mrf/tag_policy.ex            | 7 +++++--
 .../web/activity_pub/mrf/user_allow_list_policy.ex        | 6 ++++--
 lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex     | 3 ++-
 34 files changed, 105 insertions(+), 34 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/mrf/activity_expiration_policy.ex b/lib/pleroma/web/activity_pub/mrf/activity_expiration_policy.ex
index 88f6ca028..41abe17c0 100644
--- a/lib/pleroma/web/activity_pub/mrf/activity_expiration_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/activity_expiration_policy.ex
@@ -6,6 +6,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.ActivityExpirationPolicy do
   @moduledoc "Adds expiration to all local Create activities"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   @impl true
   def filter(activity) do
     activity =
diff --git a/lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex b/lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex
index 8ea61aec2..990ff31c9 100644
--- a/lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex
@@ -3,11 +3,11 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.AntiFollowbotPolicy do
+  @moduledoc "Prevent followbots from following with a bit of heuristic"
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
   alias Pleroma.User
 
-  @moduledoc "Prevent followbots from following with a bit of heuristic"
-
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   # XXX: this should become User.normalize_by_ap_id() or similar, really.
   defp normalize_by_ap_id(%{"id" => id}), do: User.get_cached_by_ap_id(id)
diff --git a/lib/pleroma/web/activity_pub/mrf/anti_link_spam_policy.ex b/lib/pleroma/web/activity_pub/mrf/anti_link_spam_policy.ex
index 2be6d8df4..5c3b66e37 100644
--- a/lib/pleroma/web/activity_pub/mrf/anti_link_spam_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/anti_link_spam_policy.ex
@@ -3,9 +3,11 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.AntiLinkSpamPolicy do
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.User
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   require Logger
 
diff --git a/lib/pleroma/web/activity_pub/mrf/anti_mention_spam_policy.ex b/lib/pleroma/web/activity_pub/mrf/anti_mention_spam_policy.ex
index 1d76a307b..c6f5781b3 100644
--- a/lib/pleroma/web/activity_pub/mrf/anti_mention_spam_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/anti_mention_spam_policy.ex
@@ -3,11 +3,13 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.AntiMentionSpamPolicy do
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.Config
   alias Pleroma.User
   require Pleroma.Constants
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   defp user_has_posted?(%User{} = u), do: u.note_count > 0
 
diff --git a/lib/pleroma/web/activity_pub/mrf/drop_policy.ex b/lib/pleroma/web/activity_pub/mrf/drop_policy.ex
index cf07db7f3..4aa1968f7 100644
--- a/lib/pleroma/web/activity_pub/mrf/drop_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/drop_policy.ex
@@ -3,10 +3,12 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.DropPolicy do
-  require Logger
   @moduledoc "Drop and log everything received"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  require Logger
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   @impl true
   def filter(activity) do
     Logger.debug("REJECTING #{inspect(activity)}")
diff --git a/lib/pleroma/web/activity_pub/mrf/emoji_policy.ex b/lib/pleroma/web/activity_pub/mrf/emoji_policy.ex
index 1de5280d9..cc5fd49bf 100644
--- a/lib/pleroma/web/activity_pub/mrf/emoji_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/emoji_policy.ex
@@ -3,6 +3,8 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.EmojiPolicy do
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   require Pleroma.Constants
 
   alias Pleroma.Object.Updater
@@ -10,7 +12,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.EmojiPolicy do
 
   @moduledoc "Reject or force-unlisted emojis with certain URLs or names"
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   defp config_remove_url do
     Pleroma.Config.get([:mrf_emoji, :remove_url], [])
diff --git a/lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex b/lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex
index f5983c8a7..6e43e746c 100644
--- a/lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex
+++ b/lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex
@@ -3,11 +3,13 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.EnsureRePrepended do
-  alias Pleroma.Object
-
   @moduledoc "Ensure a re: is prepended on replies to a post with a Subject"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  alias Pleroma.Object
+
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   @reply_prefix Regex.compile!("^re:[[:space:]]*", [:caseless])
 
   def history_awareness, do: :auto
diff --git a/lib/pleroma/web/activity_pub/mrf/follow_bot_policy.ex b/lib/pleroma/web/activity_pub/mrf/follow_bot_policy.ex
index 480a03ef6..4612b2cc5 100644
--- a/lib/pleroma/web/activity_pub/mrf/follow_bot_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/follow_bot_policy.ex
@@ -4,12 +4,15 @@
 
 defmodule Pleroma.Web.ActivityPub.MRF.FollowBotPolicy do
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.Config
   alias Pleroma.User
   alias Pleroma.Web.CommonAPI
 
   require Logger
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   @impl true
   def filter(activity) do
     with follower_nickname <- Config.get([:mrf_follow_bot, :follower_nickname]),
diff --git a/lib/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy.ex b/lib/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy.ex
index 3b3251dc3..58d02f433 100644
--- a/lib/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy.ex
@@ -3,9 +3,12 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.ForceBotUnlistedPolicy do
-  alias Pleroma.User
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
   @moduledoc "Remove bot posts from federated timeline"
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
+  alias Pleroma.User
+
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   require Pleroma.Constants
 
diff --git a/lib/pleroma/web/activity_pub/mrf/force_mention.ex b/lib/pleroma/web/activity_pub/mrf/force_mention.ex
index 4ea23540d..62aff36bc 100644
--- a/lib/pleroma/web/activity_pub/mrf/force_mention.ex
+++ b/lib/pleroma/web/activity_pub/mrf/force_mention.ex
@@ -3,13 +3,14 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.ForceMention do
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
   require Pleroma.Constants
 
   alias Pleroma.Config
   alias Pleroma.Object
   alias Pleroma.User
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   defp get_author(url) do
     with %Object{data: %{"actor" => actor}} <- Object.normalize(url, fetch: false),
diff --git a/lib/pleroma/web/activity_pub/mrf/force_mentions_in_content.ex b/lib/pleroma/web/activity_pub/mrf/force_mentions_in_content.ex
index caae365e5..e7c3f2d88 100644
--- a/lib/pleroma/web/activity_pub/mrf/force_mentions_in_content.ex
+++ b/lib/pleroma/web/activity_pub/mrf/force_mentions_in_content.ex
@@ -3,13 +3,15 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.ForceMentionsInContent do
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   require Pleroma.Constants
 
   alias Pleroma.Formatter
   alias Pleroma.Object
   alias Pleroma.User
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   @impl true
   def history_awareness, do: :auto
diff --git a/lib/pleroma/web/activity_pub/mrf/hashtag_policy.ex b/lib/pleroma/web/activity_pub/mrf/hashtag_policy.ex
index 72f2274ed..a3fae3bae 100644
--- a/lib/pleroma/web/activity_pub/mrf/hashtag_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/hashtag_policy.ex
@@ -3,6 +3,8 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.HashtagPolicy do
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   require Pleroma.Constants
 
   alias Pleroma.Config
@@ -14,7 +16,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.HashtagPolicy do
   Note: This MRF Policy is always enabled, if you want to disable it you have to set empty lists.
   """
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   @impl true
   def history_awareness, do: :manual
diff --git a/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex b/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
index 3a80d0a69..a84a7b0c8 100644
--- a/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
@@ -3,13 +3,14 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicy do
+  @moduledoc "Block activities with too much mentions (configurable)"
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.User
 
   require Pleroma.Constants
 
-  @moduledoc "Block activities with too much mentions (configurable)"
-
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   defp delist_activity(activity, threshold) when threshold > 0 do
     follower_collection = User.get_cached_by_ap_id(activity["actor"]).follower_address
diff --git a/lib/pleroma/web/activity_pub/mrf/inline_quote_policy.ex b/lib/pleroma/web/activity_pub/mrf/inline_quote_policy.ex
index 51dcd3918..17879b4bd 100644
--- a/lib/pleroma/web/activity_pub/mrf/inline_quote_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/inline_quote_policy.ex
@@ -6,6 +6,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.InlineQuotePolicy do
   @moduledoc "Force a quote line into the message content."
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   defp build_inline_quote(template, url) do
     quote_line = String.replace(template, "{url}", "<a href=\"#{url}\">#{url}</a>")
 
diff --git a/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex b/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
index 6ba6fd509..44b79596e 100644
--- a/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
@@ -3,13 +3,15 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.KeywordPolicy do
+  @moduledoc "Reject or Word-Replace activities with a keyword or regex"
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   require Pleroma.Constants
 
   alias Pleroma.Web.ActivityPub.MRF.Utils
 
-  @moduledoc "Reject or Word-Replace activities with a keyword or regex"
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   defp string_matches?(string, pattern) when is_binary(pattern) do
     String.contains?(string, pattern)
diff --git a/lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex b/lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex
index 43c2c0449..07046a666 100644
--- a/lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex
@@ -6,6 +6,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy do
   @moduledoc "Preloads any attachments in the MediaProxy cache by prefetching them"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.HTTP
   alias Pleroma.Web.MediaProxy
 
diff --git a/lib/pleroma/web/activity_pub/mrf/mention_policy.ex b/lib/pleroma/web/activity_pub/mrf/mention_policy.ex
index f7bff121f..8e108a0ae 100644
--- a/lib/pleroma/web/activity_pub/mrf/mention_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/mention_policy.ex
@@ -4,9 +4,10 @@
 
 defmodule Pleroma.Web.ActivityPub.MRF.MentionPolicy do
   @moduledoc "Block activities which mention a user"
-
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   @impl true
   def filter(%{"type" => "Create"} = activity) do
     reject_actors = Pleroma.Config.get([:mrf_mention, :actors], [])
diff --git a/lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex b/lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex
index 08dd39878..8283fd504 100644
--- a/lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex
@@ -6,6 +6,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.NoEmptyPolicy do
   @moduledoc "Filter local activities which have no content"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.Web.Endpoint
 
   @impl true
diff --git a/lib/pleroma/web/activity_pub/mrf/no_op_policy.ex b/lib/pleroma/web/activity_pub/mrf/no_op_policy.ex
index 64a5872bc..3adbb598a 100644
--- a/lib/pleroma/web/activity_pub/mrf/no_op_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/no_op_policy.ex
@@ -6,6 +6,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.NoOpPolicy do
   @moduledoc "Does nothing (lets the messages go through unmodified)"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   @impl true
   def filter(activity) do
     {:ok, activity}
diff --git a/lib/pleroma/web/activity_pub/mrf/no_placeholder_text_policy.ex b/lib/pleroma/web/activity_pub/mrf/no_placeholder_text_policy.ex
index c6f239a5e..2a10c7e97 100644
--- a/lib/pleroma/web/activity_pub/mrf/no_placeholder_text_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/no_placeholder_text_policy.ex
@@ -6,6 +6,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.NoPlaceholderTextPolicy do
   @moduledoc "Ensure no content placeholder is present (such as the dot from mastodon)"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   @impl true
   def history_awareness, do: :auto
 
diff --git a/lib/pleroma/web/activity_pub/mrf/normalize_markup.ex b/lib/pleroma/web/activity_pub/mrf/normalize_markup.ex
index 91855ef84..de0f5b619 100644
--- a/lib/pleroma/web/activity_pub/mrf/normalize_markup.ex
+++ b/lib/pleroma/web/activity_pub/mrf/normalize_markup.ex
@@ -4,9 +4,11 @@
 
 defmodule Pleroma.Web.ActivityPub.MRF.NormalizeMarkup do
   @moduledoc "Scrub configured hypertext markup"
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.HTML
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   @impl true
   def history_awareness, do: :auto
diff --git a/lib/pleroma/web/activity_pub/mrf/nsfw_api_policy.ex b/lib/pleroma/web/activity_pub/mrf/nsfw_api_policy.ex
index 52aaf05aa..7e3ec3de5 100644
--- a/lib/pleroma/web/activity_pub/mrf/nsfw_api_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/nsfw_api_policy.ex
@@ -38,6 +38,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.NsfwApiPolicy do
   - `unlist`: Unlist all detected NSFW content? Default: `false`
   - `reject`: Reject all detected NSFW content (takes precedence)? Default: `false`
   """
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.Config
   alias Pleroma.Constants
   alias Pleroma.HTTP
@@ -46,7 +48,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.NsfwApiPolicy do
   require Logger
   require Pleroma.Constants
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   @policy :mrf_nsfw_api
 
   def build_request_url(url) do
diff --git a/lib/pleroma/web/activity_pub/mrf/object_age_policy.ex b/lib/pleroma/web/activity_pub/mrf/object_age_policy.ex
index 34905fc21..00f4cf84b 100644
--- a/lib/pleroma/web/activity_pub/mrf/object_age_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/object_age_policy.ex
@@ -3,13 +3,15 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy do
+  @moduledoc "Filter activities depending on their age"
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.Config
   alias Pleroma.User
 
   require Pleroma.Constants
 
-  @moduledoc "Filter activities depending on their age"
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   defp check_date(%{"object" => %{"published" => published}} = activity) do
     with %DateTime{} = now <- DateTime.utc_now(),
diff --git a/lib/pleroma/web/activity_pub/mrf/policy.ex b/lib/pleroma/web/activity_pub/mrf/policy.ex
index 08bcac08a..b9a693c9e 100644
--- a/lib/pleroma/web/activity_pub/mrf/policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/policy.ex
@@ -15,4 +15,12 @@ defmodule Pleroma.Web.ActivityPub.MRF.Policy do
             }
   @callback history_awareness() :: :auto | :manual
   @optional_callbacks config_description: 0, history_awareness: 0, id_filter: 1
+
+  defmacro __using__(_) do
+    quote do
+      # Otherwise Pleroma.Docs.Generator.list_behaviour_implementations fails
+      # since the Elixir compiler doesn't automatically load the module since v1.19.
+      @compile {:autoload, true}
+    end
+  end
 end
diff --git a/lib/pleroma/web/activity_pub/mrf/quiet_reply.ex b/lib/pleroma/web/activity_pub/mrf/quiet_reply.ex
index b3eb0b390..b47e9edb9 100644
--- a/lib/pleroma/web/activity_pub/mrf/quiet_reply.ex
+++ b/lib/pleroma/web/activity_pub/mrf/quiet_reply.ex
@@ -6,11 +6,13 @@ defmodule Pleroma.Web.ActivityPub.MRF.QuietReply do
   @moduledoc """
   QuietReply alters the scope of activities from local users when replying by enforcing them to be "Unlisted" or "Quiet Public". This delivers the activity to all the expected recipients and instances, but it will not be published in the Federated / The Whole Known Network timelines. It will still be published to the Home timelines of the user's followers and visible to anyone who opens the thread.
   """
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   require Pleroma.Constants
 
   alias Pleroma.User
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   @impl true
   def history_awareness, do: :auto
diff --git a/lib/pleroma/web/activity_pub/mrf/quote_to_link_tag_policy.ex b/lib/pleroma/web/activity_pub/mrf/quote_to_link_tag_policy.ex
index 2a17b6761..e1ad17585 100644
--- a/lib/pleroma/web/activity_pub/mrf/quote_to_link_tag_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/quote_to_link_tag_policy.ex
@@ -6,6 +6,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.QuoteToLinkTagPolicy do
   @moduledoc "Force a Link tag for posts quoting another post. (may break outgoing federation of quote posts with older Pleroma versions)"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes
 
   require Pleroma.Constants
diff --git a/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex b/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
index 9d4a7a405..7d113dbf6 100644
--- a/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
+++ b/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
@@ -4,11 +4,12 @@
 
 defmodule Pleroma.Web.ActivityPub.MRF.RejectNonPublic do
   @moduledoc "Rejects non-public (followers-only, direct) activities"
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
   alias Pleroma.Config
   alias Pleroma.User
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   require Pleroma.Constants
 
diff --git a/lib/pleroma/web/activity_pub/mrf/remote_report_policy.ex b/lib/pleroma/web/activity_pub/mrf/remote_report_policy.ex
index 8422832dd..f9f8d2298 100644
--- a/lib/pleroma/web/activity_pub/mrf/remote_report_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/remote_report_policy.ex
@@ -2,6 +2,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.RemoteReportPolicy do
   @moduledoc "Drop remote reports if they don't contain enough information."
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.Config
 
   @impl true
diff --git a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
index a97e8db7b..7045fe90f 100644
--- a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
@@ -6,6 +6,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
   @moduledoc "Filter activities depending on their origin instance"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.Config
   alias Pleroma.FollowingRelationship
   alias Pleroma.User
diff --git a/lib/pleroma/web/activity_pub/mrf/steal_emoji_policy.ex b/lib/pleroma/web/activity_pub/mrf/steal_emoji_policy.ex
index 54f0e6bc1..f1e99aead 100644
--- a/lib/pleroma/web/activity_pub/mrf/steal_emoji_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/steal_emoji_policy.ex
@@ -3,12 +3,14 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.StealEmojiPolicy do
+  @moduledoc "Detect new emojis by their shortcode and steals them"
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   require Logger
 
   alias Pleroma.Config
 
-  @moduledoc "Detect new emojis by their shortcode and steals them"
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   defp accept_host?(host), do: host in Config.get([:mrf_steal_emoji, :hosts], [])
 
diff --git a/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex b/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
index 97acca7e8..1fe7b00e9 100644
--- a/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
@@ -3,12 +3,14 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.SubchainPolicy do
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
   alias Pleroma.Config
   alias Pleroma.Web.ActivityPub.MRF
 
   require Logger
 
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   defp lookup_subchain(actor) do
     with matches <- Config.get([:mrf_subchain, :match_actor]),
diff --git a/lib/pleroma/web/activity_pub/mrf/tag_policy.ex b/lib/pleroma/web/activity_pub/mrf/tag_policy.ex
index c236a5a99..df5594808 100644
--- a/lib/pleroma/web/activity_pub/mrf/tag_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/tag_policy.ex
@@ -3,8 +3,6 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.TagPolicy do
-  alias Pleroma.User
-  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
   @moduledoc """
      Apply policies based on user tags
 
@@ -18,6 +16,11 @@ defmodule Pleroma.Web.ActivityPub.MRF.TagPolicy do
      - `mrf_tag:disable-remote-subscription`: Reject non-local follow requests
      - `mrf_tag:disable-any-subscription`: Reject any follow requests
   """
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
+  alias Pleroma.User
+
+  use Pleroma.Web.ActivityPub.MRF.Policy
 
   require Pleroma.Constants
 
diff --git a/lib/pleroma/web/activity_pub/mrf/user_allow_list_policy.ex b/lib/pleroma/web/activity_pub/mrf/user_allow_list_policy.ex
index 10cc0e09d..a04ca90bd 100644
--- a/lib/pleroma/web/activity_pub/mrf/user_allow_list_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/user_allow_list_policy.ex
@@ -3,11 +3,13 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.MRF.UserAllowListPolicy do
-  alias Pleroma.Config
-
   @moduledoc "Accept-list of users from specified instances"
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  alias Pleroma.Config
+
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   defp filter_by_list(activity, []), do: {:ok, activity}
 
   defp filter_by_list(%{"actor" => actor} = activity, allow_list) do
diff --git a/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex b/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
index 5671e4cf3..ecba3a2c6 100644
--- a/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
@@ -4,9 +4,10 @@
 
 defmodule Pleroma.Web.ActivityPub.MRF.VocabularyPolicy do
   @moduledoc "Filter activities which belong to certain activity vocabularies"
-
   @behaviour Pleroma.Web.ActivityPub.MRF.Policy
 
+  use Pleroma.Web.ActivityPub.MRF.Policy
+
   @impl true
   def filter(%{"type" => "Undo", "object" => object} = activity) do
     with {:ok, _} <- filter(object) do

From 2a23eacee899c69f55d8a3cb6ed8291b56c7187b Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 13 Jan 2026 14:58:32 +0100
Subject: [PATCH 24/63] Elixir 1.19: Only match once on structs

Second match is not needed and a simple Map update is recommended by
the compiler
---
 lib/pleroma/marker.ex                    | 2 +-
 lib/pleroma/web/api_spec/render_error.ex | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/pleroma/marker.ex b/lib/pleroma/marker.ex
index 4f645240e..fab24d183 100644
--- a/lib/pleroma/marker.ex
+++ b/lib/pleroma/marker.ex
@@ -78,7 +78,7 @@ defmodule Pleroma.Marker do
 
   defp get_marker(user, timeline) do
     case Repo.find_resource(get_query(user, timeline)) do
-      {:ok, %__MODULE__{} = marker} -> %__MODULE__{marker | user: user}
+      {:ok, %__MODULE__{} = marker} -> %{marker | user: user}
       _ -> %__MODULE__{timeline: timeline, user_id: user.id}
     end
   end
diff --git a/lib/pleroma/web/api_spec/render_error.ex b/lib/pleroma/web/api_spec/render_error.ex
index acf510774..2ba76f250 100644
--- a/lib/pleroma/web/api_spec/render_error.ex
+++ b/lib/pleroma/web/api_spec/render_error.ex
@@ -18,10 +18,10 @@ defmodule Pleroma.Web.ApiSpec.RenderError do
     errors =
       Enum.map(errors, fn
         %OpenApiSpex.Cast.Error{name: nil, reason: :invalid_enum} = err ->
-          %OpenApiSpex.Cast.Error{err | name: err.value}
+          %{err | name: err.value}
 
         %OpenApiSpex.Cast.Error{name: nil} = err ->
-          %OpenApiSpex.Cast.Error{err | name: List.last(err.path)}
+          %{err | name: List.last(err.path)}
 
         err ->
           err

From c455e0225581e3ebe43e9ef51a7ee393d8e87bdd Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 13 Jan 2026 15:21:41 +0100
Subject: [PATCH 25/63] Elixir 1.19: Add non-test Elixir files in test/ to
 mix.exs filter

This is a new filter introduced in 1.19.
---
 mix.exs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/mix.exs b/mix.exs
index dc9fa31f5..60064e846 100644
--- a/mix.exs
+++ b/mix.exs
@@ -15,6 +15,13 @@ defmodule Pleroma.Mixfile do
       aliases: aliases(),
       deps: deps(),
       test_coverage: [tool: :covertool, summary: true],
+      test_ignore_filters: [
+        "test/credo/check/consistency/file_location.ex",
+        "test/fixtures/config/temp.exported_from_db.secret.exs",
+        "test/fixtures/config/temp.secret.exs",
+        "test/fixtures/modules/good_mrf.ex",
+        "test/fixtures/modules/runtime_module.ex"
+      ],
       # Docs
       name: "Pleroma",
       homepage_url: "https://pleroma.social/",

From a4c929c527353f99cd11aeb9c08a44f212632f12 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 13 Jan 2026 20:44:26 +0100
Subject: [PATCH 26/63] Lint

---
 lib/pleroma/config/deprecation_warnings.ex         |  4 ++--
 lib/pleroma/web/activity_pub/mrf/keyword_policy.ex |  1 -
 test/pleroma/application_test.exs                  |  6 ++++--
 test/pleroma/config/deprecation_warnings_test.exs  | 10 ++++++----
 4 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/lib/pleroma/config/deprecation_warnings.ex b/lib/pleroma/config/deprecation_warnings.ex
index 8dabd728f..8f56a3771 100644
--- a/lib/pleroma/config/deprecation_warnings.ex
+++ b/lib/pleroma/config/deprecation_warnings.ex
@@ -418,11 +418,11 @@ defmodule Pleroma.Config.DeprecationWarnings do
   end
 
   @spec check_deprecated_logger_config() :: :ok | :error
-  def check_deprecated_logger_config() do
+  def check_deprecated_logger_config do
     if Application.get_env(:logger, :backends) do
       Logger.warning(
         "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. " <>
-        "Use 'config :pleroma, :logger, backends: [...]' instead."
+          "Use 'config :pleroma, :logger, backends: [...]' instead."
       )
 
       :error
diff --git a/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex b/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
index 44b79596e..33f32e781 100644
--- a/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
@@ -10,7 +10,6 @@ defmodule Pleroma.Web.ActivityPub.MRF.KeywordPolicy do
 
   alias Pleroma.Web.ActivityPub.MRF.Utils
 
-
   use Pleroma.Web.ActivityPub.MRF.Policy
 
   defp string_matches?(string, pattern) when is_binary(pattern) do
diff --git a/test/pleroma/application_test.exs b/test/pleroma/application_test.exs
index 48f87818f..b4a29fc9b 100644
--- a/test/pleroma/application_test.exs
+++ b/test/pleroma/application_test.exs
@@ -15,7 +15,9 @@ defmodule Pleroma.ApplicationTest do
     test "is handled" do
       log = capture_log(fn -> Pleroma.Application.configure_logger() end)
 
-      assert log =~ "Configuration {:ex_syslogger, :ex_syslogger} is incorrect. Use {ExSyslogger, :ex_syslogger} instead!"
+      assert log =~
+               "Configuration {:ex_syslogger, :ex_syslogger} is incorrect. Use {ExSyslogger, :ex_syslogger} instead!"
+
       assert log =~ "Successfully added logger backend: {ExSyslogger, :ex_syslogger}"
     end
   end
@@ -27,7 +29,7 @@ defmodule Pleroma.ApplicationTest do
 
     test "emits a warning" do
       assert capture_log(fn -> Pleroma.Application.configure_logger() end) =~
-        ":console is no longer considered a backend and is enabled by default"
+               ":console is no longer considered a backend and is enabled by default"
     end
   end
 end
diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index 1491f4ea3..5383e2bce 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -394,13 +394,15 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
       Application.put_env(:logger, :backends, [:console, {ExSyslogger, :ex_syslogger}])
 
       on_exit(fn ->
-        Application.delete_env(:logger, :backends) end)
+        Application.delete_env(:logger, :backends)
+      end)
     end
 
     test "warns on deprecated syntax" do
-      assert capture_log(fn -> Pleroma.Config.DeprecationWarnings.check_deprecated_logger_config() end) =~
-        "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. Use 'config :pleroma, :logger, backends: [...]' instead."
+      assert capture_log(fn ->
+               Pleroma.Config.DeprecationWarnings.check_deprecated_logger_config()
+             end) =~
+               "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. Use 'config :pleroma, :logger, backends: [...]' instead."
     end
   end
-
 end

From a4137243b62795b6299248ccf11f80ccda059d56 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 13 Jan 2026 21:07:06 +0100
Subject: [PATCH 27/63] Elixir 1.19: Reword Logger backends deprecation warning

---
 lib/pleroma/config/deprecation_warnings.ex        | 15 +++++++++++----
 test/pleroma/config/deprecation_warnings_test.exs | 12 +++++++++++-
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/lib/pleroma/config/deprecation_warnings.ex b/lib/pleroma/config/deprecation_warnings.ex
index 8f56a3771..8b8628862 100644
--- a/lib/pleroma/config/deprecation_warnings.ex
+++ b/lib/pleroma/config/deprecation_warnings.ex
@@ -420,10 +420,17 @@ defmodule Pleroma.Config.DeprecationWarnings do
   @spec check_deprecated_logger_config() :: :ok | :error
   def check_deprecated_logger_config do
     if Application.get_env(:logger, :backends) do
-      Logger.warning(
-        "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. " <>
-          "Use 'config :pleroma, :logger, backends: [...]' instead."
-      )
+      Logger.warning("""
+      !!!DEPRECATION WARNING!!!
+      Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
+      `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
+      Please update your configuration at your earliest convenience to use:
+        `config :pleroma, :logger, backends: [...]`
+      Pleroma's default configuration will be updated in the next release which WILL override your settings.
+
+      Note: :console is no longer considered a backend and is used by default, you can disable it using:
+        `config :logger, :default_handler: false`
+      """)
 
       :error
     else
diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index 5383e2bce..a9a71be36 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -402,7 +402,17 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
       assert capture_log(fn ->
                Pleroma.Config.DeprecationWarnings.check_deprecated_logger_config()
              end) =~
-               "'config :logger, backends: [...]' is deprecated syntax due to changes in Elixir. Use 'config :pleroma, :logger, backends: [...]' instead."
+               """
+               !!!DEPRECATION WARNING!!!
+               Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
+               `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
+               Please update your configuration at your earliest convenience to use:
+                 `config :pleroma, :logger, backends: [...]`
+               Pleroma's default configuration will be updated in the next release which WILL override your settings.
+
+               Note: :console is no longer considered a backend and is used by default, you can disable it using:
+                 `config :logger, :default_handler: false`
+               """
     end
   end
 end

From 6ffd25682d4a0e6cebe9b0c8789c76bb9e8a312d Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 13 Jan 2026 21:18:08 +0100
Subject: [PATCH 28/63] Elixir 1.19: Add deprecation warning for :logger,
 :console configs

---
 lib/pleroma/config/deprecation_warnings.ex    | 30 +++++++++++---
 .../config/deprecation_warnings_test.exs      | 41 +++++++++++++------
 2 files changed, 54 insertions(+), 17 deletions(-)

diff --git a/lib/pleroma/config/deprecation_warnings.ex b/lib/pleroma/config/deprecation_warnings.ex
index 8b8628862..f38fb7f2f 100644
--- a/lib/pleroma/config/deprecation_warnings.ex
+++ b/lib/pleroma/config/deprecation_warnings.ex
@@ -419,22 +419,42 @@ defmodule Pleroma.Config.DeprecationWarnings do
 
   @spec check_deprecated_logger_config() :: :ok | :error
   def check_deprecated_logger_config do
-    if Application.get_env(:logger, :backends) do
+    backend = if Application.get_env(:logger, :backends) do
       Logger.warning("""
       !!!DEPRECATION WARNING!!!
       Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
       `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
       Please update your configuration at your earliest convenience to use:
-        `config :pleroma, :logger, backends: [...]`
+        `config :logger, backends: [...]`
       Pleroma's default configuration will be updated in the next release which WILL override your settings.
 
-      Note: :console is no longer considered a backend and is used by default, you can disable it using:
+      Note: `:console` is no longer considered a backend and is used by default, you can disable it using:
         `config :logger, :default_handler: false`
       """)
 
-      :error
+      true
     else
-      :ok
+      false
     end
+
+    console = if Application.get_env(:logger, :console) do
+      Logger.warning("""
+      !!!DEPRECATION WARNING!!!
+      Your configuration is using deprecated syntax for configuring logging to console.
+      `config :logger, :console` is deprecated syntax due to changes in Elixir.
+      Please update your configuration at your earliest convenience to use
+        `config :logger, default_handler` and `config :logger, :default_formatter`.
+      Pleroma's default configuration will be updated in the next release which WILL override your settings.
+
+      Note: `:default_handler` is used only for the `level` setting. All other configurations go under
+      `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility
+      """)
+
+      true
+    else
+      false
+    end
+
+    if backend or console, do: :error, else: :ok
   end
 end
diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index a9a71be36..f5b9d76d3 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -392,27 +392,44 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
   describe "check_deprecated_logger_config" do
     setup do
       Application.put_env(:logger, :backends, [:console, {ExSyslogger, :ex_syslogger}])
+      Application.put_env(:logger, :console, level: :warning)
 
       on_exit(fn ->
         Application.delete_env(:logger, :backends)
+        Application.delete_env(:logger, :console)
       end)
     end
 
     test "warns on deprecated syntax" do
-      assert capture_log(fn ->
+      log = capture_log(fn ->
                Pleroma.Config.DeprecationWarnings.check_deprecated_logger_config()
-             end) =~
-               """
-               !!!DEPRECATION WARNING!!!
-               Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
-               `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
-               Please update your configuration at your earliest convenience to use:
-                 `config :pleroma, :logger, backends: [...]`
-               Pleroma's default configuration will be updated in the next release which WILL override your settings.
+             end)
 
-               Note: :console is no longer considered a backend and is used by default, you can disable it using:
-                 `config :logger, :default_handler: false`
-               """
+      assert log =~
+         """
+         !!!DEPRECATION WARNING!!!
+         Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
+         `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
+         Please update your configuration at your earliest convenience to use:
+           `config :logger, backends: [...]`
+         Pleroma's default configuration will be updated in the next release which WILL override your settings.
+
+         Note: `:console` is no longer considered a backend and is used by default, you can disable it using:
+           `config :logger, :default_handler: false`
+         """
+
+      assert log =~
+         """
+         !!!DEPRECATION WARNING!!!
+         Your configuration is using deprecated syntax for configuring logging to console.
+         `config :logger, :console` is deprecated syntax due to changes in Elixir.
+         Please update your configuration at your earliest convenience to use
+           `config :logger, default_handler` and `config :logger, :default_formatter`.
+         Pleroma's default configuration will be updated in the next release which WILL override your settings.
+
+         Note: `:default_handler` is used only for the `level` setting. All other configurations go under
+         `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility
+         """
     end
   end
 end

From a5bd4e0d9230fe9aaad4722681ed12aec0cb5301 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 13 Jan 2026 21:31:07 +0100
Subject: [PATCH 29/63] Partially revert "Elixir 1.19: Refactor Logger
 configuration to what Elixir 1.15+ expects"

This partially reverts commit fc35204cc1d718ba7815cc5e1b08746202b4f7dc.
---
 config/config.exs                |  9 ++++-----
 config/dev.exs                   |  2 +-
 config/prod.exs                  |  3 ++-
 config/test.exs                  | 10 +++-------
 docs/configuration/cheatsheet.md |  2 +-
 5 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index 08311146e..5bf2c5c2e 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -132,12 +132,11 @@ config :pleroma, Pleroma.Web.Endpoint,
     "SameSite=Lax"
   ]
 
-# config :logger, :console has been changed in 1.15+ and split into
-# :default_handler and :default_formatter. It started emitting warnings in 1.19.
-# See https://hexdocs.pm/logger/1.19.0/Logger.html#module-backends-and-backwards-compatibility
-config :logger, :default_handler, level: :debug
+# Configures Elixir's Logger
+config :logger, backends: [:console]
 
-config :logger, :default_formatter,
+config :logger, :console,
+  level: :debug,
   format: "\n$time $metadata[$level] $message\n",
   metadata: [:actor, :path, :type, :user]
 
diff --git a/config/dev.exs b/config/dev.exs
index e86bdb7fd..14cf4a6dc 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -36,7 +36,7 @@ config :pleroma, Pleroma.Emails.Mailer, adapter: Swoosh.Adapters.Local
 # different ports.
 
 # Do not include timestamps in development logs
-config :logger, :default_formatter, format: "$metadata[$level] $message\n"
+config :logger, Logger.Backends.Console, format: "$metadata[$level] $message\n"
 
 # Set a higher stacktrace during development. Avoid configuring such
 # in production as building large stacktraces may be expensive.
diff --git a/config/prod.exs b/config/prod.exs
index 1dfbbe937..2d252bf02 100644
--- a/config/prod.exs
+++ b/config/prod.exs
@@ -20,7 +20,8 @@ config :pleroma, Pleroma.Web.Endpoint,
 config :phoenix, serve_endpoints: true
 
 # Do not print debug messages in production
-config :logger, :default_handler, level: :info
+config :logger, Logger.Backends.Console, level: :info
+config :logger, :console, level: :info
 config :logger, :ex_syslogger, level: :info
 
 # ## SSL Support
diff --git a/config/test.exs b/config/test.exs
index 5b7f3b1ed..9652b7d4b 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -15,13 +15,9 @@ config :pleroma, Pleroma.Captcha,
   method: Pleroma.Captcha.Mock
 
 # Print only warnings and errors during test
-config :logger, :default_handler, level: :warning
-
-config :logger, :default_formatter,
-  format: "\n[$level] $message\n",
-  colors: [
-    enabled: false
-  ]
+config :logger, :console,
+  level: :warning,
+  format: "\n[$level] $message\n"
 
 config :pleroma, :auth, oauth_consumer_strategies: []
 
diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md
index 01d81f6ca..b0a7087a7 100644
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@@ -886,7 +886,7 @@ See: [logger’s documentation](https://hexdocs.pm/logger/Logger.html) and [ex_s
 An example of logging info to local syslog, but debug to console:
 ```elixir
 config :pleroma, :logger,
-  backends: [ {ExSyslogger, :ex_syslogger}]
+  backends: [{ExSyslogger, :ex_syslogger}]
 
 config :logger, :ex_syslogger,
   level: :info,

From aed0eb33331568b38c14b83d753c671b8336cb38 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 13 Jan 2026 23:28:57 +0100
Subject: [PATCH 30/63] Elixir 1.19: Warn on old config of :console Logger and
 conflicts

---
 lib/pleroma/config/deprecation_warnings.ex    | 122 +++++++++++++-----
 .../config/deprecation_warnings_test.exs      |  47 +++----
 2 files changed, 115 insertions(+), 54 deletions(-)

diff --git a/lib/pleroma/config/deprecation_warnings.ex b/lib/pleroma/config/deprecation_warnings.ex
index f38fb7f2f..ee3965b64 100644
--- a/lib/pleroma/config/deprecation_warnings.ex
+++ b/lib/pleroma/config/deprecation_warnings.ex
@@ -419,42 +419,102 @@ defmodule Pleroma.Config.DeprecationWarnings do
 
   @spec check_deprecated_logger_config() :: :ok | :error
   def check_deprecated_logger_config do
-    backend = if Application.get_env(:logger, :backends) do
-      Logger.warning("""
-      !!!DEPRECATION WARNING!!!
-      Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
-      `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
-      Please update your configuration at your earliest convenience to use:
-        `config :logger, backends: [...]`
-      Pleroma's default configuration will be updated in the next release which WILL override your settings.
+    mix_env = Pleroma.Config.get(:env)
+    config_file_name = "config/#{mix_env}.secret.exs"
+    config_file = File.read(config_file_name)
 
-      Note: `:console` is no longer considered a backend and is used by default, you can disable it using:
-        `config :logger, :default_handler: false`
-      """)
+    config_file =
+      case config_file do
+        {:ok, contents} ->
+          String.split(contents, "\n", trim: true)
+          |> Enum.reject(fn string -> String.starts_with?(string, "#") end)
+          |> Enum.join("\n")
 
-      true
-    else
-      false
-    end
+        _ ->
+          false
+      end
 
-    console = if Application.get_env(:logger, :console) do
-      Logger.warning("""
-      !!!DEPRECATION WARNING!!!
-      Your configuration is using deprecated syntax for configuring logging to console.
-      `config :logger, :console` is deprecated syntax due to changes in Elixir.
-      Please update your configuration at your earliest convenience to use
-        `config :logger, default_handler` and `config :logger, :default_formatter`.
-      Pleroma's default configuration will be updated in the next release which WILL override your settings.
+    declared_deprecated_backend =
+      if is_binary(config_file) do
+        String.contains?(config_file, "config :logger, backends") or
+          String.contains?(config_file, "config :logger,\n  backends")
+      else
+        nil
+      end
 
-      Note: `:default_handler` is used only for the `level` setting. All other configurations go under
-      `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility
-      """)
+    declared_deprecated_console =
+      if is_binary(config_file) do
+        String.contains?(config_file, "config :logger, :console") or
+          String.contains?(config_file, "config :logger,\n  console")
+      else
+        nil
+      end
 
-      true
-    else
-      false
-    end
+    # We can't use Application.get_env/3, because by default default_formatter is populated
+    declared_new_console =
+      if is_binary(config_file) do
+        String.contains?(config_file, "config :logger, :default_handler") or
+          String.contains?(config_file, "config :logger,\n  :default_handler") or
+          String.contains?(config_file, "config :logger, :default_formatter") or
+          String.contains?(config_file, "config :logger,\n  :default_formatter")
+      else
+        nil
+      end
 
-    if backend or console, do: :error, else: :ok
+    use_new_backend_config = Pleroma.Config.get([:logger, :backends])
+
+    backend =
+      if declared_deprecated_backend do
+        Logger.warning("""
+        !!!DEPRECATION WARNING!!!
+        Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
+        `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
+        Please update your configuration at your earliest convenience to use:
+          `config :logger, backends: [...]`
+        Pleroma's default configuration will be updated in the next release which WILL override your settings.
+
+        Note: `:console` is no longer considered a backend and is used by default, you can disable it using:
+          `config :logger, :default_handler: false`
+        """)
+
+        true
+      else
+        false
+      end
+
+    console =
+      if declared_deprecated_console do
+        Logger.warning("""
+        !!!DEPRECATION WARNING!!!
+        Your configuration is using deprecated syntax for configuring logging to console.
+        `config :logger, :console` is deprecated syntax due to changes in Elixir.
+        Please update your configuration at your earliest convenience to use
+          `config :logger, default_handler` and `config :logger, :default_formatter`.
+        Pleroma's default configuration will be updated in the next release which WILL override your settings.
+
+        Note: `:default_handler` is used only for the `level` setting. All other configurations go under
+        `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility
+        """)
+
+        true
+      else
+        false
+      end
+
+    conflict =
+      if (!is_nil(use_new_backend_config) and declared_deprecated_backend) or
+           (declared_new_console and declared_deprecated_console) do
+        Logger.warning("""
+        !!!CONFIGURATION CONFLICT!!!
+        Pleroma has detected that both the deprecated way of configuring Logger and the new way are defined in your configuration.
+        Delete the deprecated configuration syntax.
+        """)
+
+        true
+      else
+        false
+      end
+
+    if backend or console or conflict, do: :error, else: :ok
   end
 end
diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index f5b9d76d3..cf2c6b4d2 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -401,35 +401,36 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
     end
 
     test "warns on deprecated syntax" do
-      log = capture_log(fn ->
-               Pleroma.Config.DeprecationWarnings.check_deprecated_logger_config()
-             end)
+      log =
+        capture_log(fn ->
+          Pleroma.Config.DeprecationWarnings.check_deprecated_logger_config()
+        end)
 
       assert log =~
-         """
-         !!!DEPRECATION WARNING!!!
-         Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
-         `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
-         Please update your configuration at your earliest convenience to use:
-           `config :logger, backends: [...]`
-         Pleroma's default configuration will be updated in the next release which WILL override your settings.
+               """
+               !!!DEPRECATION WARNING!!!
+               Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
+               `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
+               Please update your configuration at your earliest convenience to use:
+                 `config :logger, backends: [...]`
+               Pleroma's default configuration will be updated in the next release which WILL override your settings.
 
-         Note: `:console` is no longer considered a backend and is used by default, you can disable it using:
-           `config :logger, :default_handler: false`
-         """
+               Note: `:console` is no longer considered a backend and is used by default, you can disable it using:
+                 `config :logger, :default_handler: false`
+               """
 
       assert log =~
-         """
-         !!!DEPRECATION WARNING!!!
-         Your configuration is using deprecated syntax for configuring logging to console.
-         `config :logger, :console` is deprecated syntax due to changes in Elixir.
-         Please update your configuration at your earliest convenience to use
-           `config :logger, default_handler` and `config :logger, :default_formatter`.
-         Pleroma's default configuration will be updated in the next release which WILL override your settings.
+               """
+               !!!DEPRECATION WARNING!!!
+               Your configuration is using deprecated syntax for configuring logging to console.
+               `config :logger, :console` is deprecated syntax due to changes in Elixir.
+               Please update your configuration at your earliest convenience to use
+                 `config :logger, default_handler` and `config :logger, :default_formatter`.
+               Pleroma's default configuration will be updated in the next release which WILL override your settings.
 
-         Note: `:default_handler` is used only for the `level` setting. All other configurations go under
-         `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility
-         """
+               Note: `:default_handler` is used only for the `level` setting. All other configurations go under
+               `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility
+               """
     end
   end
 end

From bd0c5aa748d226d109aeec7462ac9e6ba8d12f75 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Wed, 14 Jan 2026 11:09:57 +0100
Subject: [PATCH 31/63] Elixir 1.19: Move default configs to the new Logger
 configuration, again

Trying to do a two-release migration proved to be very hacky and ugly.
Instead this is preparation for moving defaults first and then merging
the old configuration left in admin's config file at runtime while still
emitting a warning. This hopefully will be a lot nicer and less
complicated.
---
 config/config.exs | 5 ++---
 config/dev.exs    | 2 +-
 config/prod.exs   | 3 +--
 config/test.exs   | 5 ++---
 4 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index 5bf2c5c2e..069c0c7c0 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -133,10 +133,9 @@ config :pleroma, Pleroma.Web.Endpoint,
   ]
 
 # Configures Elixir's Logger
-config :logger, backends: [:console]
+config :logger, :default_handler, level: :debug
 
-config :logger, :console,
-  level: :debug,
+config :logger, :default_formatter,
   format: "\n$time $metadata[$level] $message\n",
   metadata: [:actor, :path, :type, :user]
 
diff --git a/config/dev.exs b/config/dev.exs
index 14cf4a6dc..e86bdb7fd 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -36,7 +36,7 @@ config :pleroma, Pleroma.Emails.Mailer, adapter: Swoosh.Adapters.Local
 # different ports.
 
 # Do not include timestamps in development logs
-config :logger, Logger.Backends.Console, format: "$metadata[$level] $message\n"
+config :logger, :default_formatter, format: "$metadata[$level] $message\n"
 
 # Set a higher stacktrace during development. Avoid configuring such
 # in production as building large stacktraces may be expensive.
diff --git a/config/prod.exs b/config/prod.exs
index 2d252bf02..1dfbbe937 100644
--- a/config/prod.exs
+++ b/config/prod.exs
@@ -20,8 +20,7 @@ config :pleroma, Pleroma.Web.Endpoint,
 config :phoenix, serve_endpoints: true
 
 # Do not print debug messages in production
-config :logger, Logger.Backends.Console, level: :info
-config :logger, :console, level: :info
+config :logger, :default_handler, level: :info
 config :logger, :ex_syslogger, level: :info
 
 # ## SSL Support
diff --git a/config/test.exs b/config/test.exs
index 9652b7d4b..083759327 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -15,9 +15,8 @@ config :pleroma, Pleroma.Captcha,
   method: Pleroma.Captcha.Mock
 
 # Print only warnings and errors during test
-config :logger, :console,
-  level: :warning,
-  format: "\n[$level] $message\n"
+config :logger, :default_handler, level: :warning
+config :logger, :default_formatter, format: "\n[$level] $message\n"
 
 config :pleroma, :auth, oauth_consumer_strategies: []
 

From 9450fba83d10fca74e013708bd12406520ef9788 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Wed, 14 Jan 2026 13:45:20 +0100
Subject: [PATCH 32/63] Elixir 1.19: Disable colors for logging in test env

Color ANSI codes end up in the capture_log output and break existing
tests.
---
 config/test.exs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/config/test.exs b/config/test.exs
index 083759327..ed5283a26 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -16,7 +16,10 @@ config :pleroma, Pleroma.Captcha,
 
 # Print only warnings and errors during test
 config :logger, :default_handler, level: :warning
-config :logger, :default_formatter, format: "\n[$level] $message\n"
+
+config :logger, :default_formatter,
+  format: "\n[$level] $message\n",
+  colors: [enabled: false]
 
 config :pleroma, :auth, oauth_consumer_strategies: []
 

From 0f262bb2f3238bf8d999d22e3a4a45bcbc7fc301 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Wed, 14 Jan 2026 13:49:31 +0100
Subject: [PATCH 33/63] Elixir 1.19: Replace ugly old logger config checks with
 config merging

Side note: Going up in log levels doesn't work properly.
 - debug->info works
 - info->debug does not work
---
 lib/pleroma/application.ex                    |  3 +
 lib/pleroma/config/deprecation_warnings.ex    | 88 ++++++-------------
 .../config/deprecation_warnings_test.exs      | 20 ++++-
 3 files changed, 51 insertions(+), 60 deletions(-)

diff --git a/lib/pleroma/application.ex b/lib/pleroma/application.ex
index 0e8723251..78073b430 100644
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@@ -132,6 +132,9 @@ defmodule Pleroma.Application do
       {:ok, _} ->
         Logger.debug("Successfully added logger backend: #{inspect(backend)}")
 
+      {:error, :already_present} ->
+        :ok
+
       {:error, reason} ->
         Logger.error("Failed to add logger backend #{inspect(backend)}: #{inspect(reason)}")
     end
diff --git a/lib/pleroma/config/deprecation_warnings.ex b/lib/pleroma/config/deprecation_warnings.ex
index ee3965b64..4b6281e01 100644
--- a/lib/pleroma/config/deprecation_warnings.ex
+++ b/lib/pleroma/config/deprecation_warnings.ex
@@ -20,6 +20,9 @@ defmodule Pleroma.Config.DeprecationWarnings do
      "\n* `config :pleroma, :instance, mrf_transparency_exclusions` is now `config :pleroma, :mrf, transparency_exclusions`"}
   ]
 
+  @logger_config_knobs [:level, :translator_inspect_opts]
+  @logger_formatter_config_knows [:colors, :format, :metadata, :truncate, :utc_log]
+
   def check_exiftool_filter do
     filters = Config.get([Pleroma.Upload]) |> Keyword.get(:filters, [])
 
@@ -417,54 +420,33 @@ defmodule Pleroma.Config.DeprecationWarnings do
     end
   end
 
+  defp merge_deprecated_logger_config(config) do
+    handler_config = Enum.filter(config, fn {k, _} -> k in @logger_config_knobs end)
+    formatter_config = Enum.filter(config, fn {k, _} -> k in @logger_formatter_config_knows end)
+    formatter = Logger.default_formatter(formatter_config)
+
+    Logger.debug("""
+    Reconfiguring console Logger with deprecated configuration syntax.
+      Handler configuration:
+        #{inspect(handler_config)}
+
+      Formatter:
+        #{inspect(formatter)}
+    """)
+
+    Logger.configure(handler_config)
+    :logger.update_handler_config(:default, :formatter, formatter)
+  end
+
   @spec check_deprecated_logger_config() :: :ok | :error
   def check_deprecated_logger_config do
-    mix_env = Pleroma.Config.get(:env)
-    config_file_name = "config/#{mix_env}.secret.exs"
-    config_file = File.read(config_file_name)
-
-    config_file =
-      case config_file do
-        {:ok, contents} ->
-          String.split(contents, "\n", trim: true)
-          |> Enum.reject(fn string -> String.starts_with?(string, "#") end)
-          |> Enum.join("\n")
-
-        _ ->
-          false
-      end
-
-    declared_deprecated_backend =
-      if is_binary(config_file) do
-        String.contains?(config_file, "config :logger, backends") or
-          String.contains?(config_file, "config :logger,\n  backends")
-      else
-        nil
-      end
-
-    declared_deprecated_console =
-      if is_binary(config_file) do
-        String.contains?(config_file, "config :logger, :console") or
-          String.contains?(config_file, "config :logger,\n  console")
-      else
-        nil
-      end
-
-    # We can't use Application.get_env/3, because by default default_formatter is populated
-    declared_new_console =
-      if is_binary(config_file) do
-        String.contains?(config_file, "config :logger, :default_handler") or
-          String.contains?(config_file, "config :logger,\n  :default_handler") or
-          String.contains?(config_file, "config :logger, :default_formatter") or
-          String.contains?(config_file, "config :logger,\n  :default_formatter")
-      else
-        nil
-      end
-
-    use_new_backend_config = Pleroma.Config.get([:logger, :backends])
+    backends_config = Application.get_env(:logger, :backends)
+    console_config = Application.get_env(:logger, :console)
 
+    # Note: No need to merge the old backends config since it still works.
+    # And new configuration will just add new Logger backends.
     backend =
-      if declared_deprecated_backend do
+      if backends_config do
         Logger.warning("""
         !!!DEPRECATION WARNING!!!
         Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
@@ -483,7 +465,7 @@ defmodule Pleroma.Config.DeprecationWarnings do
       end
 
     console =
-      if declared_deprecated_console do
+      if console_config do
         Logger.warning("""
         !!!DEPRECATION WARNING!!!
         Your configuration is using deprecated syntax for configuring logging to console.
@@ -496,25 +478,13 @@ defmodule Pleroma.Config.DeprecationWarnings do
         `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility
         """)
 
-        true
-      else
-        false
-      end
-
-    conflict =
-      if (!is_nil(use_new_backend_config) and declared_deprecated_backend) or
-           (declared_new_console and declared_deprecated_console) do
-        Logger.warning("""
-        !!!CONFIGURATION CONFLICT!!!
-        Pleroma has detected that both the deprecated way of configuring Logger and the new way are defined in your configuration.
-        Delete the deprecated configuration syntax.
-        """)
+        merge_deprecated_logger_config(console_config)
 
         true
       else
         false
       end
 
-    if backend or console or conflict, do: :error, else: :ok
+    if backend or console, do: :error, else: :ok
   end
 end
diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index cf2c6b4d2..787f9d2fd 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -392,11 +392,12 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
   describe "check_deprecated_logger_config" do
     setup do
       Application.put_env(:logger, :backends, [:console, {ExSyslogger, :ex_syslogger}])
-      Application.put_env(:logger, :console, level: :warning)
+      Application.put_env(:logger, :console, level: :debug)
 
       on_exit(fn ->
         Application.delete_env(:logger, :backends)
         Application.delete_env(:logger, :console)
+        :logger.update_handler_config(:default, :formatter, Logger.default_formatter())
       end)
     end
 
@@ -432,5 +433,22 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
                `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility
                """
     end
+
+    test "reconfigures logger" do
+      log =
+        capture_log(fn ->
+          Pleroma.Config.DeprecationWarnings.check_deprecated_logger_config()
+        end)
+
+      # Formatter has inconsitent color formatting order
+      assert log =~
+               """
+               Reconfiguring console Logger with deprecated configuration syntax.
+                 Handler configuration:
+                   [level: :debug]
+
+                 Formatter:
+               """
+    end
   end
 end

From 02fc770e3638de20592fdaab115a041cda05f952 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Wed, 14 Jan 2026 15:02:51 +0100
Subject: [PATCH 34/63] Elixir 1.19: Improve DeprecationWarningsTest Logger
 reconfiguration test

---
 .../config/deprecation_warnings_test.exs      | 23 ++++++++++---------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index 787f9d2fd..a6ccf063c 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -11,6 +11,8 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
   alias Pleroma.Config
   alias Pleroma.Config.DeprecationWarnings
 
+  require Logger
+
   describe "filter exiftool" do
     test "gives warning when still used" do
       clear_config(
@@ -392,11 +394,12 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
   describe "check_deprecated_logger_config" do
     setup do
       Application.put_env(:logger, :backends, [:console, {ExSyslogger, :ex_syslogger}])
-      Application.put_env(:logger, :console, level: :debug)
+      Application.put_env(:logger, :console, level: :info)
 
       on_exit(fn ->
         Application.delete_env(:logger, :backends)
         Application.delete_env(:logger, :console)
+        Logger.configure(level: :debug)
         :logger.update_handler_config(:default, :formatter, Logger.default_formatter())
       end)
     end
@@ -435,20 +438,18 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
     end
 
     test "reconfigures logger" do
-      log =
+      empty_log =
         capture_log(fn ->
-          Pleroma.Config.DeprecationWarnings.check_deprecated_logger_config()
+          Logger.debug("This should not be logged")
         end)
 
-      # Formatter has inconsitent color formatting order
-      assert log =~
-               """
-               Reconfiguring console Logger with deprecated configuration syntax.
-                 Handler configuration:
-                   [level: :debug]
+      logged =
+        capture_log(fn ->
+          Logger.info("This should be logged")
+        end)
 
-                 Formatter:
-               """
+      assert empty_log =~ ""
+      assert logged =~ "This should be logged"
     end
   end
 end

From 829a60ce9365ddc69655cc8e88f625dfa17c5e96 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 15 Jan 2026 16:03:44 +0100
Subject: [PATCH 35/63] Elixir 1.19 MRFTest: Replace matchable_regexes with
 regexes_match! func

---
 test/pleroma/web/activity_pub/mrf_test.exs | 26 +++++++++++-----------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/test/pleroma/web/activity_pub/mrf_test.exs b/test/pleroma/web/activity_pub/mrf_test.exs
index 6656a01b8..401d4ebb3 100644
--- a/test/pleroma/web/activity_pub/mrf_test.exs
+++ b/test/pleroma/web/activity_pub/mrf_test.exs
@@ -10,22 +10,25 @@ defmodule Pleroma.Web.ActivityPub.MRFTest do
 
   alias Pleroma.Web.ActivityPub.MRF
 
+  defp regexes_match!([],[]), do: true
+
+  defp regexes_match!([authority | authority_rest], [checked | checked_rest]) do
+    authority.source == checked.source and regexes_match!(authority_rest, checked_rest)
+  end
+
+  defp regexes_match!(_, _), do: false
+
   test "subdomains_regex/1" do
     regexes = MRF.subdomains_regex(["unsafe.tld", "*.unsafe.tld"])
-    matchable_regexes = Enum.map(regexes, fn r -> r.source end)
 
-    assert matchable_regexes == [
-             ~r/^unsafe.tld$/i.source,
-             ~r/^(.*\.)*unsafe.tld$/i.source
-           ]
+    assert regexes_match!(regexes, [~r/^unsafe.tld$/i, ~r/^(.*\.)*unsafe.tld$/i])
   end
 
   describe "subdomain_match/2" do
     test "common domains" do
       regexes = MRF.subdomains_regex(["unsafe.tld", "unsafe2.tld"])
-      matchable_regexes = Enum.map(regexes, fn r -> r.source end)
 
-      assert matchable_regexes == [~r/^unsafe.tld$/i.source, ~r/^unsafe2.tld$/i.source]
+      assert regexes_match!(regexes, [~r/^unsafe.tld$/i, ~r/^unsafe2.tld$/i])
 
       assert MRF.subdomain_match?(regexes, "unsafe.tld")
       assert MRF.subdomain_match?(regexes, "unsafe2.tld")
@@ -35,9 +38,8 @@ defmodule Pleroma.Web.ActivityPub.MRFTest do
 
     test "wildcard domains with one subdomain" do
       regexes = MRF.subdomains_regex(["*.unsafe.tld"])
-      matchable_regexes = Enum.map(regexes, fn r -> r.source end)
 
-      assert matchable_regexes == [~r/^(.*\.)*unsafe.tld$/i.source]
+      assert regexes_match!(regexes, [~r/^(.*\.)*unsafe.tld$/i])
 
       assert MRF.subdomain_match?(regexes, "unsafe.tld")
       assert MRF.subdomain_match?(regexes, "sub.unsafe.tld")
@@ -47,9 +49,8 @@ defmodule Pleroma.Web.ActivityPub.MRFTest do
 
     test "wildcard domains with two subdomains" do
       regexes = MRF.subdomains_regex(["*.unsafe.tld"])
-      matchable_regexes = Enum.map(regexes, fn r -> r.source end)
 
-      assert matchable_regexes == [~r/^(.*\.)*unsafe.tld$/i.source]
+      assert regexes_match!(regexes, [~r/^(.*\.)*unsafe.tld$/i])
 
       assert MRF.subdomain_match?(regexes, "unsafe.tld")
       assert MRF.subdomain_match?(regexes, "sub.sub.unsafe.tld")
@@ -59,9 +60,8 @@ defmodule Pleroma.Web.ActivityPub.MRFTest do
 
     test "matches are case-insensitive" do
       regexes = MRF.subdomains_regex(["UnSafe.TLD", "UnSAFE2.Tld"])
-      matchable_regexes = Enum.map(regexes, fn r -> r.source end)
 
-      assert matchable_regexes == [~r/^UnSafe.TLD$/i.source, ~r/^UnSAFE2.Tld$/i.source]
+      assert regexes_match!(regexes, [~r/^UnSafe.TLD$/i, ~r/^UnSAFE2.Tld$/i])
 
       assert MRF.subdomain_match?(regexes, "UNSAFE.TLD")
       assert MRF.subdomain_match?(regexes, "UNSAFE2.TLD")

From ad7ab7741b1d426554765401c92857500f432c6c Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 15 Jan 2026 16:36:59 +0100
Subject: [PATCH 36/63] Elixir 1.19: Update dependencies in docs

Elixir 1.15 support only OTP>=24
---
 docs/installation/generic_dependencies.include | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/installation/generic_dependencies.include b/docs/installation/generic_dependencies.include
index 588a6c019..382f07a6c 100644
--- a/docs/installation/generic_dependencies.include
+++ b/docs/installation/generic_dependencies.include
@@ -1,8 +1,8 @@
 ## Required dependencies
 
 * PostgreSQL >=11.0
-* Elixir >=1.15.0 <1.19
-* Erlang OTP >=23.0.0 (supported: <28)
+* Elixir >=1.15.0, <1.20
+* Erlang OTP >=24.0.0 (supported: <29)
 * git
 * file / libmagic
 * gcc or clang

From b75f8f7c9addbd73f88ac468473e23aef86b55fa Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 15 Jan 2026 16:56:01 +0100
Subject: [PATCH 37/63] Elixir 1.19: Added changelogs

---
 changelog.d/elixir-1-19.fix        | 1 +
 changelog.d/logger-backends.change | 1 +
 2 files changed, 2 insertions(+)
 create mode 100644 changelog.d/elixir-1-19.fix
 create mode 100644 changelog.d/logger-backends.change

diff --git a/changelog.d/elixir-1-19.fix b/changelog.d/elixir-1-19.fix
new file mode 100644
index 000000000..53079b0f7
--- /dev/null
+++ b/changelog.d/elixir-1-19.fix
@@ -0,0 +1 @@
+Fixed Elixir 1.19 warnings
diff --git a/changelog.d/logger-backends.change b/changelog.d/logger-backends.change
new file mode 100644
index 000000000..5f044c2c7
--- /dev/null
+++ b/changelog.d/logger-backends.change
@@ -0,0 +1 @@
+Changed how Logger is configured due to changes in Elixir and added deprecation warnings for the old configuration format

From 0ac1b65ba95b9bc3382494a84432bb8ecf088771 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Wed, 21 Jan 2026 18:39:15 +0100
Subject: [PATCH 38/63] Elixir 1.19: Fix improper deprecation warning wording

---
 lib/pleroma/config/deprecation_warnings.ex        | 4 +---
 test/pleroma/config/deprecation_warnings_test.exs | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/lib/pleroma/config/deprecation_warnings.ex b/lib/pleroma/config/deprecation_warnings.ex
index 4b6281e01..4f68c141c 100644
--- a/lib/pleroma/config/deprecation_warnings.ex
+++ b/lib/pleroma/config/deprecation_warnings.ex
@@ -452,8 +452,7 @@ defmodule Pleroma.Config.DeprecationWarnings do
         Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
         `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
         Please update your configuration at your earliest convenience to use:
-          `config :logger, backends: [...]`
-        Pleroma's default configuration will be updated in the next release which WILL override your settings.
+          `config :pleroma, :logger, backends: [...]`
 
         Note: `:console` is no longer considered a backend and is used by default, you can disable it using:
           `config :logger, :default_handler: false`
@@ -472,7 +471,6 @@ defmodule Pleroma.Config.DeprecationWarnings do
         `config :logger, :console` is deprecated syntax due to changes in Elixir.
         Please update your configuration at your earliest convenience to use
           `config :logger, default_handler` and `config :logger, :default_formatter`.
-        Pleroma's default configuration will be updated in the next release which WILL override your settings.
 
         Note: `:default_handler` is used only for the `level` setting. All other configurations go under
         `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility
diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index a6ccf063c..221609da0 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -416,8 +416,7 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
                Your configuration is using deprecated syntax for configuring backends of Elixir's logger.
                `config :logger, backends: [...]` is deprecated syntax due to changes in Elixir.
                Please update your configuration at your earliest convenience to use:
-                 `config :logger, backends: [...]`
-               Pleroma's default configuration will be updated in the next release which WILL override your settings.
+                 `config :pleroma, :logger, backends: [...]`
 
                Note: `:console` is no longer considered a backend and is used by default, you can disable it using:
                  `config :logger, :default_handler: false`
@@ -430,7 +429,6 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
                `config :logger, :console` is deprecated syntax due to changes in Elixir.
                Please update your configuration at your earliest convenience to use
                  `config :logger, default_handler` and `config :logger, :default_formatter`.
-               Pleroma's default configuration will be updated in the next release which WILL override your settings.
 
                Note: `:default_handler` is used only for the `level` setting. All other configurations go under
                `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility

From 1743a837dd31e7756a7e3293a170234b2d94fc57 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Wed, 21 Jan 2026 20:02:26 +0100
Subject: [PATCH 39/63] Elixir 1.19: Set merged logger config correctly, remove
 log level test

---
 lib/pleroma/config/deprecation_warnings.ex    | 29 +++++++++---------
 .../config/deprecation_warnings_test.exs      | 30 +++++--------------
 2 files changed, 23 insertions(+), 36 deletions(-)

diff --git a/lib/pleroma/config/deprecation_warnings.ex b/lib/pleroma/config/deprecation_warnings.ex
index 4f68c141c..e77785483 100644
--- a/lib/pleroma/config/deprecation_warnings.ex
+++ b/lib/pleroma/config/deprecation_warnings.ex
@@ -20,8 +20,7 @@ defmodule Pleroma.Config.DeprecationWarnings do
      "\n* `config :pleroma, :instance, mrf_transparency_exclusions` is now `config :pleroma, :mrf, transparency_exclusions`"}
   ]
 
-  @logger_config_knobs [:level, :translator_inspect_opts]
-  @logger_formatter_config_knows [:colors, :format, :metadata, :truncate, :utc_log]
+  @logger_formatter_config_knobs [:colors, :format, :metadata, :truncate, :utc_log]
 
   def check_exiftool_filter do
     filters = Config.get([Pleroma.Upload]) |> Keyword.get(:filters, [])
@@ -421,21 +420,23 @@ defmodule Pleroma.Config.DeprecationWarnings do
   end
 
   defp merge_deprecated_logger_config(config) do
-    handler_config = Enum.filter(config, fn {k, _} -> k in @logger_config_knobs end)
-    formatter_config = Enum.filter(config, fn {k, _} -> k in @logger_formatter_config_knows end)
+    formatter_config = Enum.filter(config, fn {k, _} -> k in @logger_formatter_config_knobs end)
     formatter = Logger.default_formatter(formatter_config)
+    log_level = Keyword.get(config, :level, nil)
 
-    Logger.debug("""
-    Reconfiguring console Logger with deprecated configuration syntax.
-      Handler configuration:
-        #{inspect(handler_config)}
+    if Config.get(:env) != :test do
+      Logger.debug("""
+      Reconfiguring console Logger with deprecated configuration syntax.
+        Handler configuration:
+          log_level: #{inspect(log_level)}
 
-      Formatter:
-        #{inspect(formatter)}
-    """)
+        Formatter:
+          #{inspect(formatter)}
+      """)
 
-    Logger.configure(handler_config)
-    :logger.update_handler_config(:default, :formatter, formatter)
+      if log_level, do: :logger.update_handler_config(:default, :level, log_level)
+      :logger.update_handler_config(:default, :formatter, formatter)
+    end
   end
 
   @spec check_deprecated_logger_config() :: :ok | :error
@@ -443,7 +444,7 @@ defmodule Pleroma.Config.DeprecationWarnings do
     backends_config = Application.get_env(:logger, :backends)
     console_config = Application.get_env(:logger, :console)
 
-    # Note: No need to merge the old backends config since it still works.
+    # NOTE: No need to merge the old backends config since it still works.
     # And new configuration will just add new Logger backends.
     backend =
       if backends_config do
diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index 221609da0..475a88c4d 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -3,7 +3,7 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Config.DeprecationWarningsTest do
-  use ExUnit.Case
+  use ExUnit.Case, async: false
   use Pleroma.Tests.Helpers
 
   import ExUnit.CaptureLog
@@ -393,14 +393,15 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
 
   describe "check_deprecated_logger_config" do
     setup do
-      Application.put_env(:logger, :backends, [:console, {ExSyslogger, :ex_syslogger}])
-      Application.put_env(:logger, :console, level: :info)
+      initial_console = Application.get_env(:logger, :console, nil)
+      initial_backends = Application.get_env(:logger, :backends, nil)
+
+      Application.put_env(:logger, :console, level: :all)
+      Application.put_env(:logger, :backends, [:console])
 
       on_exit(fn ->
-        Application.delete_env(:logger, :backends)
-        Application.delete_env(:logger, :console)
-        Logger.configure(level: :debug)
-        :logger.update_handler_config(:default, :formatter, Logger.default_formatter())
+        if initial_console, do: Application.put_env(:logger, :console, initial_console), else: Application.delete_env(:logger, :console)
+        if initial_backends, do: Application.put_env(:logger, :backends, initial_backends), else: Application.delete_env(:logger, :backends)
       end)
     end
 
@@ -434,20 +435,5 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
                `:default_formatter`. For more info visit: https://hexdocs.pm/logger/Logger.html#module-backends-and-backwards-compatibility
                """
     end
-
-    test "reconfigures logger" do
-      empty_log =
-        capture_log(fn ->
-          Logger.debug("This should not be logged")
-        end)
-
-      logged =
-        capture_log(fn ->
-          Logger.info("This should be logged")
-        end)
-
-      assert empty_log =~ ""
-      assert logged =~ "This should be logged"
-    end
   end
 end

From f44774d387c88ce6289ff691a4aa5662c0966964 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Wed, 21 Jan 2026 21:13:23 +0100
Subject: [PATCH 40/63] lint

---
 test/pleroma/config/deprecation_warnings_test.exs | 13 +++++++++++--
 test/pleroma/web/activity_pub/mrf_test.exs        |  2 +-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index 475a88c4d..72dd63100 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -400,8 +400,17 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
       Application.put_env(:logger, :backends, [:console])
 
       on_exit(fn ->
-        if initial_console, do: Application.put_env(:logger, :console, initial_console), else: Application.delete_env(:logger, :console)
-        if initial_backends, do: Application.put_env(:logger, :backends, initial_backends), else: Application.delete_env(:logger, :backends)
+        if initial_console do
+          Application.put_env(:logger, :console, initial_console)
+        else
+          Application.delete_env(:logger, :console)
+        end
+
+        if initial_backends do
+          Application.put_env(:logger, :backends, initial_backends)
+        else
+          Application.delete_env(:logger, :backends)
+        end
       end)
     end
 
diff --git a/test/pleroma/web/activity_pub/mrf_test.exs b/test/pleroma/web/activity_pub/mrf_test.exs
index 401d4ebb3..2d0f3b317 100644
--- a/test/pleroma/web/activity_pub/mrf_test.exs
+++ b/test/pleroma/web/activity_pub/mrf_test.exs
@@ -10,7 +10,7 @@ defmodule Pleroma.Web.ActivityPub.MRFTest do
 
   alias Pleroma.Web.ActivityPub.MRF
 
-  defp regexes_match!([],[]), do: true
+  defp regexes_match!([], []), do: true
 
   defp regexes_match!([authority | authority_rest], [checked | checked_rest]) do
     authority.source == checked.source and regexes_match!(authority_rest, checked_rest)

From a12f9777f857002318a6d6da17473bb6a52276b7 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 12 Feb 2026 23:46:08 +0100
Subject: [PATCH 41/63] Elixir 1.19: Bump Woodpecker test pipeline to 1.19

---
 .woodpecker.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.woodpecker.yml b/.woodpecker.yml
index 4ceb1cab5..f6b06dc61 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -4,7 +4,7 @@ when:
 
 steps:
   test:
-    image: elixir:1.15-alpine
+    image: elixir:1.19-alpine
     environment:
       MIX_ENV: test
       DB_HOST: postgres

From 01b139c6331977f5d622866127be9b4291cd4732 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sun, 22 Feb 2026 21:50:28 +0100
Subject: [PATCH 42/63] Elixir 1.19: Add note to deprecation warnings test

The Logger does not get reconfigured when running in the test env,
the added and on_exit removed settings below should have no effect
besides triggering the deprecation warnings. To make breakage even less
possible, async is turned off for these tests.

TransferTask test does almost the same with the Application env.
---
 test/pleroma/config/deprecation_warnings_test.exs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index 72dd63100..b65b0e630 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -396,6 +396,9 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
       initial_console = Application.get_env(:logger, :console, nil)
       initial_backends = Application.get_env(:logger, :backends, nil)
 
+      # NOTE: The Logger does not get reconfigured when running in the test env,
+      # the added and on_exit removed settings below should have no effect besides
+      # triggering the deprecation warnings
       Application.put_env(:logger, :console, level: :all)
       Application.put_env(:logger, :backends, [:console])
 

From 08ba0d46d77cbb19f218b464a1cbeb700227e6a8 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sun, 22 Feb 2026 22:27:48 +0100
Subject: [PATCH 43/63] ActivityDraft: Add missing __MODULE__ matches and drop
 unneeded ones

---
 lib/pleroma/web/common_api/activity_draft.ex | 48 ++++++++++----------
 1 file changed, 24 insertions(+), 24 deletions(-)

diff --git a/lib/pleroma/web/common_api/activity_draft.ex b/lib/pleroma/web/common_api/activity_draft.ex
index 6c84ef656..16489663a 100644
--- a/lib/pleroma/web/common_api/activity_draft.ex
+++ b/lib/pleroma/web/common_api/activity_draft.ex
@@ -99,34 +99,34 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
       |> Map.put("cc", draft.cc)
       |> Map.put("actor", draft.user.ap_id)
 
-    %__MODULE__{draft | object: object}
+    %{draft | object: object}
   end
 
   defp put_params(%__MODULE__{} = draft, params) do
     params = Map.put_new(params, :in_reply_to_status_id, params[:in_reply_to_id])
-    %__MODULE__{draft | params: params}
+    %{draft | params: params}
   end
 
   defp status(%__MODULE__{params: %{status: status}} = draft) do
-    %__MODULE__{draft | status: String.trim(status)}
+    %{draft | status: String.trim(status)}
   end
 
   defp summary(%__MODULE__{params: params} = draft) do
-    %__MODULE__{draft | summary: Map.get(params, :spoiler_text, "")}
+    %{draft | summary: Map.get(params, :spoiler_text, "")}
   end
 
   defp full_payload(%__MODULE__{status: status, summary: summary} = draft) do
     full_payload = String.trim(status <> summary)
 
     case Utils.validate_character_limit(full_payload, draft.attachments) do
-      :ok -> %__MODULE__{draft | full_payload: full_payload}
+      :ok -> %{draft | full_payload: full_payload}
       {:error, message} -> add_error(draft, message)
     end
   end
 
   defp attachments(%__MODULE__{params: params} = draft) do
     attachments = Utils.attachments_from_ids(params, draft.user)
-    draft = %__MODULE__{draft | attachments: attachments}
+    draft = %{draft | attachments: attachments}
 
     case Utils.validate_attachments_count(attachments) do
       :ok -> draft
@@ -149,7 +149,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     with %Activity{} = activity <- Activity.get_by_id(id),
          true <- Visibility.visible_for_user?(activity, draft.user),
          {_, type} when type in ["Create", "Announce"] <- {:type, activity.data["type"]} do
-      %__MODULE__{draft | in_reply_to: activity}
+      %{draft | in_reply_to: activity}
     else
       nil ->
         add_error(draft, dgettext("errors", "Cannot reply to a deleted status"))
@@ -170,7 +170,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
   defp in_reply_to(
          %__MODULE__{params: %{in_reply_to_status_id: %Activity{} = in_reply_to}} = draft
        ) do
-    %__MODULE__{draft | in_reply_to: in_reply_to}
+    %{draft | in_reply_to: in_reply_to}
   end
 
   defp in_reply_to(draft), do: draft
@@ -179,14 +179,14 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
        when not_empty_string(id) do
     case Activity.get_by_id_with_object(id) do
       %Activity{} = activity ->
-        %__MODULE__{draft | quote_post: activity}
+        %{draft | quote_post: activity}
 
       _ ->
         draft
     end
   end
 
-  defp quote_post(%{params: %{quote_id: id}} = draft) when not_empty_string(id) do
+  defp quote_post(%__MODULE__{params: %{quote_id: id}} = draft) when not_empty_string(id) do
     quote_post(%{draft | params: Map.put(draft.params, :quoted_status_id, id)})
   end
 
@@ -194,7 +194,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
 
   defp in_reply_to_conversation(%__MODULE__{} = draft) do
     in_reply_to_conversation = Participation.get(draft.params[:in_reply_to_conversation_id])
-    %__MODULE__{draft | in_reply_to_conversation: in_reply_to_conversation}
+    %{draft | in_reply_to_conversation: in_reply_to_conversation}
   end
 
   defp visibility(%__MODULE__{params: params} = draft) do
@@ -203,7 +203,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
         add_error(draft, dgettext("errors", "The message visibility must be direct"))
 
       {visibility, _} ->
-        %__MODULE__{draft | visibility: visibility}
+        %{draft | visibility: visibility}
     end
   end
 
@@ -219,7 +219,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     false
   end
 
-  defp quoting_visibility(%{quote_post: %Activity{}} = draft) do
+  defp quoting_visibility(%__MODULE__{quote_post: %Activity{}} = draft) do
     with %Object{} = object <- Object.normalize(draft.quote_post, fetch: false),
          true <- can_quote?(draft, object, Visibility.get_visibility(object)) do
       draft
@@ -232,7 +232,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
 
   defp expires_at(%__MODULE__{} = draft) do
     case CommonAPI.check_expiry_date(draft.params[:expires_in]) do
-      {:ok, expires_at} -> %__MODULE__{draft | expires_at: expires_at}
+      {:ok, expires_at} -> %{draft | expires_at: expires_at}
       {:error, message} -> add_error(draft, message)
     end
   end
@@ -240,7 +240,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
   defp poll(%__MODULE__{} = draft) do
     case Utils.make_poll_data(draft.params) do
       {:ok, {poll, poll_emoji}} ->
-        %__MODULE__{draft | extra: poll, emoji: Map.merge(draft.emoji, poll_emoji)}
+        %{draft | extra: poll, emoji: Map.merge(draft.emoji, poll_emoji)}
 
       {:error, message} ->
         add_error(draft, message)
@@ -258,22 +258,22 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
       |> Kernel.++(mentioned_ap_ids)
       |> Utils.get_addressed_users(draft.params[:to])
 
-    %__MODULE__{draft | content_html: content_html, mentions: mentions, tags: tags}
+    %{draft | content_html: content_html, mentions: mentions, tags: tags}
   end
 
   defp to_and_cc(%__MODULE__{} = draft) do
     {to, cc} = Utils.get_to_and_cc(draft)
-    %__MODULE__{draft | to: to, cc: cc}
+    %{draft | to: to, cc: cc}
   end
 
   defp context(%__MODULE__{} = draft) do
     context = Utils.make_context(draft.in_reply_to, draft.in_reply_to_conversation)
-    %__MODULE__{draft | context: context}
+    %{draft | context: context}
   end
 
   defp sensitive(%__MODULE__{} = draft) do
     sensitive = draft.params[:sensitive]
-    %__MODULE__{draft | sensitive: sensitive}
+    %{draft | sensitive: sensitive}
   end
 
   defp language(%__MODULE__{} = draft) do
@@ -285,7 +285,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
         _ -> LanguageDetector.detect(draft.content_html <> " " <> draft.summary)
       end
 
-    %__MODULE__{draft | language: language}
+    %{draft | language: language}
   end
 
   defp object(%__MODULE__{} = draft) do
@@ -329,12 +329,12 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
       |> Map.put("generator", draft.params[:generator])
       |> Map.put("language", draft.language)
 
-    %__MODULE__{draft | object: object}
+    %{draft | object: object}
   end
 
   defp preview?(%__MODULE__{} = draft) do
     preview? = Pleroma.Web.Utils.Params.truthy_param?(draft.params[:preview])
-    %__MODULE__{draft | preview?: preview?}
+    %{draft | preview?: preview?}
   end
 
   defp changes(%__MODULE__{} = draft) do
@@ -357,14 +357,14 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
       }
       |> Utils.maybe_add_list_data(draft.user, draft.visibility)
 
-    %__MODULE__{draft | changes: changes}
+    %{draft | changes: changes}
   end
 
   defp with_valid(%{valid?: true} = draft, func), do: func.(draft)
   defp with_valid(draft, _func), do: draft
 
   defp add_error(%__MODULE__{} = draft, message) do
-    %__MODULE__{draft | valid?: false, errors: [message | draft.errors]}
+    %{draft | valid?: false, errors: [message | draft.errors]}
   end
 
   defp validate(%{valid?: true} = draft), do: {:ok, draft}

From 784a319f2eb9b98e6e034c38b462dd1e11390359 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Thu, 14 May 2026 00:22:24 +0200
Subject: [PATCH 44/63] Woodpecker CI: Bump unit testing pipeline to Elixir
 1.19

---
 ...t-testing-elixir-1.18.yaml => unit-testing-elixir-1.19.yaml} | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 rename .woodpecker/{unit-testing-elixir-1.18.yaml => unit-testing-elixir-1.19.yaml} (97%)

diff --git a/.woodpecker/unit-testing-elixir-1.18.yaml b/.woodpecker/unit-testing-elixir-1.19.yaml
similarity index 97%
rename from .woodpecker/unit-testing-elixir-1.18.yaml
rename to .woodpecker/unit-testing-elixir-1.19.yaml
index 9ad9eebc9..462e2ee5d 100644
--- a/.woodpecker/unit-testing-elixir-1.18.yaml
+++ b/.woodpecker/unit-testing-elixir-1.19.yaml
@@ -19,7 +19,7 @@ variables:
 
 steps:
   unit-testing-elixir-1.18:
-    image: elixir:1.18-otp-27-alpine
+    image: elixir:1.19-otp-28-alpine
     entrypoint: *script_file_entrypoint
     environment:
       MIX_ENV: test

From 9782bcf979c12b06b7aefde14ed3708e74ff0657 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 16 Jun 2026 18:22:23 +0200
Subject: [PATCH 45/63] Elixir 1.19: Fix most MRFs being absent from AdminAPI
 suggestions.

Elixir 1.19 started lazily loading modules, so modules only get loaded
when referenced. Thus :code.all_loaded would no longer include all MRF
policies which is used on startup to generate sugestions for AdminAPI.
---
 lib/pleroma/docs/generator.ex | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/lib/pleroma/docs/generator.ex b/lib/pleroma/docs/generator.ex
index 93b19484f..70413837a 100644
--- a/lib/pleroma/docs/generator.ex
+++ b/lib/pleroma/docs/generator.ex
@@ -12,13 +12,27 @@ defmodule Pleroma.Docs.Generator do
 
   @spec list_behaviour_implementations(behaviour :: module()) :: [module()]
   def list_behaviour_implementations(behaviour) do
-    :code.all_loaded()
-    |> Enum.filter(fn {module, _} ->
+    # :code.all_loaded() no longer works on Elixir 1.19 and newer since modules are lazily loaded.
+    # We can get a complete list of modules by interating over Application.loaded_applications/0,
+    # but that includes every module which would get loaded below, which is very slow.
+    # Hardcode the Pleroma application instead, which is good enough for now.
+    application_modules =
+      case :application.get_key(:pleroma, :modules) do
+        {:ok, modules} -> modules
+        :undefined -> []
+      end
+
+    # At compile time or in tests some modules will be outside of the Pleroma application.
+    loaded_modules = Enum.map(:code.all_loaded(), fn {module, _} -> module end)
+
+    (application_modules ++ loaded_modules)
+    |> Enum.uniq()
+    |> Enum.filter(fn module ->
+      Code.ensure_loaded(module)
+
       # This shouldn't be needed as all modules are expected to have module_info/1,
       # but in test environments some transient modules `:elixir_compiler_XX`
       # are loaded for some reason (where XX is a random integer).
-      Code.ensure_loaded(module)
-
       if function_exported?(module, :module_info, 1) do
         module.module_info(:attributes)
         |> Keyword.get_values(:behaviour)
@@ -26,7 +40,6 @@ defmodule Pleroma.Docs.Generator do
         |> Enum.member?(behaviour)
       end
     end)
-    |> Enum.map(fn {module, _} -> module end)
   end
 
   @doc """

From a020b8a1901720238e8749d8487ddb218b82472b Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Mon, 29 Jun 2026 23:47:43 +0200
Subject: [PATCH 46/63] Elixir 1.19: Ensure default primary logger configg
 level is debug

Setting the default handler and ex_syslogger handler levels does not
necessarily have to set the primary logger log level, at least in the
future. Without this, the primary log level might be lower than the
configured console/syslog levels, which would cause some desired logs to
not be logged.
---
 config/config.exs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/config/config.exs b/config/config.exs
index 37a2590ca..80183a3d9 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -133,12 +133,17 @@ config :pleroma, Pleroma.Web.Endpoint,
   ]
 
 # Configures Elixir's Logger
+# Primary config
+config :logger, level: :debug
+
+# Console config
 config :logger, :default_handler, level: :debug
 
 config :logger, :default_formatter,
   format: "\n$time $metadata[$level] $message\n",
   metadata: [:actor, :path, :type, :user]
 
+# Syslog config
 config :logger, :ex_syslogger,
   level: :debug,
   ident: "pleroma",

From 7d9175350d0f2ce715048ac1795ec4790d192c3b Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Tue, 30 Jun 2026 00:24:48 +0200
Subject: [PATCH 47/63] Elixir 1.19: Completely overwrite formatter for default
 handler

:logger.update_handler_config/3 can merge configs,
:logger.set_handler_config/3 instead resets the rest to defaults.
---
 lib/pleroma/config/deprecation_warnings.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/config/deprecation_warnings.ex b/lib/pleroma/config/deprecation_warnings.ex
index e77785483..8f8786ee7 100644
--- a/lib/pleroma/config/deprecation_warnings.ex
+++ b/lib/pleroma/config/deprecation_warnings.ex
@@ -435,7 +435,7 @@ defmodule Pleroma.Config.DeprecationWarnings do
       """)
 
       if log_level, do: :logger.update_handler_config(:default, :level, log_level)
-      :logger.update_handler_config(:default, :formatter, formatter)
+      :logger.set_handler_config(:default, :formatter, formatter)
     end
   end
 

From 1d758dbbf58fceb966ac541dabef4e1f4fb0ce45 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 17 Jul 2026 22:39:43 +0200
Subject: [PATCH 48/63] Elixir 1.19: Do not restart :logger in ConfigDB
 TransferTask

---
 lib/pleroma/config/transfer_task.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/config/transfer_task.ex b/lib/pleroma/config/transfer_task.ex
index 140dd7711..3e59dc4e0 100644
--- a/lib/pleroma/config/transfer_task.ex
+++ b/lib/pleroma/config/transfer_task.ex
@@ -51,7 +51,7 @@ defmodule Pleroma.Config.TransferTask do
 
       started_applications = Application.started_applications()
 
-      reject = [nil, :postgrex]
+      reject = [nil, :postgrex, :logger]
 
       reject =
         if restart_pleroma? do

From ebd5596ba7e298d47382c3a49304c35c9ef59859 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Fri, 17 Jul 2026 23:32:43 +0200
Subject: [PATCH 49/63] Elixir 1.19: Create ConfigDB blacklist and task for
 :pleroma, :logger

This option was never configurable with ConfigDB when it lived under
:logger, :backends; no need to be configurable now.
---
 config/config.exs                      |  4 +++
 lib/mix/tasks/pleroma/config.ex        | 50 ++++++++++++++++++++++++++
 test/mix/tasks/pleroma/config_test.exs | 35 ++++++++++++++++++
 3 files changed, 89 insertions(+)

diff --git a/config/config.exs b/config/config.exs
index 80183a3d9..e6a4eb3e6 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -966,6 +966,10 @@ config :pleroma, Pleroma.Search.QdrantSearch,
     vectors: %{size: 384, distance: "Cosine"}
   }
 
+config :pleroma, :database_config_blacklist, [
+  {:pleroma, :logger}
+]
+
 config :pleroma, :database_config_whitelist, [
   {:pleroma},
   {:cors_plug},
diff --git a/lib/mix/tasks/pleroma/config.ex b/lib/mix/tasks/pleroma/config.ex
index c5f2e9b0a..a389252ac 100644
--- a/lib/mix/tasks/pleroma/config.ex
+++ b/lib/mix/tasks/pleroma/config.ex
@@ -289,6 +289,52 @@ defmodule Mix.Tasks.Pleroma.Config do
     end
   end
 
+  # Removes blacklisted configuration sections
+  def run(["filter_blacklisted" | rest]) do
+    {options, [], []} =
+      OptionParser.parse(
+        rest,
+        strict: [force: :boolean],
+        aliases: [f: :force]
+      )
+
+    force = Keyword.get(options, :force, false)
+
+    start_pleroma()
+
+    blacklisted_configs = Pleroma.Config.get(:database_config_blacklist)
+
+    if blacklisted_configs in [nil, false] do
+      shell_error("No unwanted settings in ConfigDB. No changes made.")
+    else
+      blacklisted_keys =
+        blacklisted_configs
+        |> Enum.filter(fn
+          {_group, _key} -> true
+          _ -> false
+        end)
+
+      filtered =
+        from(c in ConfigDB)
+        |> Repo.all()
+        |> Enum.filter(&blacklisted?(&1, blacklisted_keys))
+
+      if not Enum.empty?(filtered) do
+        shell_info("The following settings will be removed from ConfigDB:\n")
+        Enum.each(filtered, &dump(&1))
+
+        if force or shell_prompt("Are you sure you want to continue?", "n") in ~w(Yn Y y) do
+          filtered_ids = Enum.map(filtered, fn %{id: id} -> id end)
+
+          Repo.delete_all(from(c in ConfigDB, where: c.id in ^filtered_ids))
+        else
+          shell_error("No changes made.")
+        end
+      else
+        shell_error("No unwanted settings in ConfigDB. No changes made.")
+      end
+    end
+  end
   @spec migrate_to_db(Path.t() | nil) :: any()
   def migrate_to_db(file_path \\ nil) do
     with :ok <- Pleroma.Config.DeprecationWarnings.warn() do
@@ -494,4 +540,8 @@ defmodule Mix.Tasks.Pleroma.Config do
     not Enum.member?(whitelisted_groups, group) and
       not Enum.member?(whitelisted_keys, {group, key})
   end
+
+  defp blacklisted?(%{group: group, key: key}, blacklisted_keys) do
+    Enum.member?(blacklisted_keys, {group, key})
+  end
 end
diff --git a/test/mix/tasks/pleroma/config_test.exs b/test/mix/tasks/pleroma/config_test.exs
index f672d8c13..3ae6e7f16 100644
--- a/test/mix/tasks/pleroma/config_test.exs
+++ b/test/mix/tasks/pleroma/config_test.exs
@@ -369,5 +369,40 @@ defmodule Mix.Tasks.Pleroma.ConfigTest do
       MixTask.run(["filter_whitelisted", "--force"])
       assert config_records() == existing
     end
+
+    test "filters blacklisted settings" do
+      clear_config(:database_config_whitelist, [{:pleroma}])
+      clear_config(:database_config_blacklist, [
+        {:pleroma, :logger}
+      ])
+
+      insert_config_record(:pleroma, :logger, backends: :console)
+      insert_config_record(:web_push_encryption, :vapid_details, a: 1)
+
+      MixTask.run(["filter_blacklisted", "--force"])
+
+      assert [
+               %ConfigDB{group: :pleroma, key: :instance},
+               %ConfigDB{group: :pleroma, key: Pleroma.Captcha},
+               %ConfigDB{group: :pleroma2, key: :key2},
+               %ConfigDB{group: :web_push_encryption, key: :vapid_details},
+             ] = config_records()
+    end
+
+    test "filter_blacklisted doesn't crash when blacklist is unset" do
+      clear_config(:database_config_blacklist, nil)
+
+      existing = config_records()
+      MixTask.run(["filter_blacklisted", "--force"])
+      assert config_records() == existing
+    end
+
+    test "filter_blacklisted doesn't crash when blacklist is disabled" do
+      clear_config(:database_config_blacklist, false)
+
+      existing = config_records()
+      MixTask.run(["filter_blacklisted", "--force"])
+      assert config_records() == existing
+    end
   end
 end

From 2d307c1487de02129e897fe7abd05a03cb06889b Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sat, 18 Jul 2026 16:05:14 +0200
Subject: [PATCH 50/63] ConfigDB: Support blacklisting whole config groups

---
 lib/mix/tasks/pleroma/config.ex        | 14 +++++++++++---
 test/mix/tasks/pleroma/config_test.exs |  4 +++-
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/lib/mix/tasks/pleroma/config.ex b/lib/mix/tasks/pleroma/config.ex
index a389252ac..d160ce533 100644
--- a/lib/mix/tasks/pleroma/config.ex
+++ b/lib/mix/tasks/pleroma/config.ex
@@ -307,6 +307,13 @@ defmodule Mix.Tasks.Pleroma.Config do
     if blacklisted_configs in [nil, false] do
       shell_error("No unwanted settings in ConfigDB. No changes made.")
     else
+      blacklisted_groups =
+        blacklisted_configs
+        |> Enum.filter(fn
+          {_group} -> true
+          _ -> false
+        end)
+
       blacklisted_keys =
         blacklisted_configs
         |> Enum.filter(fn
@@ -317,7 +324,7 @@ defmodule Mix.Tasks.Pleroma.Config do
       filtered =
         from(c in ConfigDB)
         |> Repo.all()
-        |> Enum.filter(&blacklisted?(&1, blacklisted_keys))
+        |> Enum.filter(&blacklisted?(&1, blacklisted_groups, blacklisted_keys))
 
       if not Enum.empty?(filtered) do
         shell_info("The following settings will be removed from ConfigDB:\n")
@@ -541,7 +548,8 @@ defmodule Mix.Tasks.Pleroma.Config do
       not Enum.member?(whitelisted_keys, {group, key})
   end
 
-  defp blacklisted?(%{group: group, key: key}, blacklisted_keys) do
-    Enum.member?(blacklisted_keys, {group, key})
+  defp blacklisted?(%{group: group, key: key}, blacklisted_groups, blacklisted_keys) do
+    Enum.member?(blacklisted_groups, {group}) or
+      Enum.member?(blacklisted_keys, {group, key})
   end
 end
diff --git a/test/mix/tasks/pleroma/config_test.exs b/test/mix/tasks/pleroma/config_test.exs
index 3ae6e7f16..b35e0aed8 100644
--- a/test/mix/tasks/pleroma/config_test.exs
+++ b/test/mix/tasks/pleroma/config_test.exs
@@ -373,11 +373,13 @@ defmodule Mix.Tasks.Pleroma.ConfigTest do
     test "filters blacklisted settings" do
       clear_config(:database_config_whitelist, [{:pleroma}])
       clear_config(:database_config_blacklist, [
-        {:pleroma, :logger}
+        {:pleroma, :logger},
+        {:blacklisted_group}
       ])
 
       insert_config_record(:pleroma, :logger, backends: :console)
       insert_config_record(:web_push_encryption, :vapid_details, a: 1)
+      insert_config_record(:blacklisted_group, :anything, a: 1)
 
       MixTask.run(["filter_blacklisted", "--force"])
 

From c688d09478d7569fa047665ea21532816a78002f Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sat, 18 Jul 2026 16:06:11 +0200
Subject: [PATCH 51/63] ConfigDB: Implement config update blacklist in AdminAPI

---
 .../controllers/config_controller.ex          | 30 +++++++-
 .../controllers/config_controller_test.exs    | 71 +++++++++++++++++++
 2 files changed, 100 insertions(+), 1 deletion(-)

diff --git a/lib/pleroma/web/admin_api/controllers/config_controller.ex b/lib/pleroma/web/admin_api/controllers/config_controller.ex
index 3eba03525..503fbc14d 100644
--- a/lib/pleroma/web/admin_api/controllers/config_controller.ex
+++ b/lib/pleroma/web/admin_api/controllers/config_controller.ex
@@ -71,7 +71,10 @@ defmodule Pleroma.Web.AdminAPI.ConfigController do
   end
 
   def descriptions(conn, _params) do
-    descriptions = Enum.filter(Pleroma.Docs.JSON.compiled_descriptions(), &whitelisted_config?/1)
+    descriptions =
+      Pleroma.Docs.JSON.compiled_descriptions()
+      |> Enum.filter(&whitelisted_config?/1)
+      |> Enum.reject(&blacklisted_config?/1)
 
     json(conn, translate_descriptions(descriptions))
   end
@@ -133,6 +136,7 @@ defmodule Pleroma.Web.AdminAPI.ConfigController do
       results =
         configs
         |> Enum.filter(&whitelisted_config?/1)
+        |> Enum.reject(&blacklisted_config?/1)
         |> Enum.map(fn
           %{group: group, key: key, delete: true} = params ->
             ConfigDB.delete(%{group: group, key: key, subkeys: params[:subkeys]})
@@ -197,4 +201,28 @@ defmodule Pleroma.Web.AdminAPI.ConfigController do
   defp whitelisted_config?(%{group: group} = config) do
     whitelisted_config?(group, config[:key])
   end
+
+  defp blacklisted_config?(":pleroma", ":database_config_blacklist"), do: true
+
+  defp blacklisted_config?(group, key) do
+    if blacklisted_configs = Config.get(:database_config_blacklist) do
+      Enum.any?(blacklisted_configs, fn
+        {blacklisted_group} ->
+          group == inspect(blacklisted_group)
+
+        {blacklisted_group, blacklisted_key} ->
+          group == inspect(blacklisted_group) and key == inspect(blacklisted_key)
+        end)
+    else
+      true
+    end
+  end
+
+  defp blacklisted_config?(%{group: group, key: key}) do
+    blacklisted_config?(group, key)
+  end
+
+  defp blacklisted_config?(%{group: group} = config) do
+    blacklisted_config?(group, config[:key])
+  end
 end
diff --git a/test/pleroma/web/admin_api/controllers/config_controller_test.exs b/test/pleroma/web/admin_api/controllers/config_controller_test.exs
index e62d95fad..047662d39 100644
--- a/test/pleroma/web/admin_api/controllers/config_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/config_controller_test.exs
@@ -1245,6 +1245,52 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
       refute ConfigDB.get_by_group_and_key(:pleroma, :database_config_whitelist)
     end
 
+    test "doesn't set keys in the blacklist", %{conn: conn} do
+      clear_config(:database_config_blacklist, [{:pleroma, :logger}, {:pleroma, :key2}, {:pleroma, Pleroma.Captcha.NotReal}, {:blacklisted_group}])
+
+      conn
+      |> put_req_header("content-type", "application/json")
+      |> post("/api/pleroma/admin/config", %{
+        configs: [
+          %{group: ":pleroma", key: ":logger", value: "logconf"},
+          %{group: ":pleroma", key: ":key1", value: "value1"},
+          %{group: ":pleroma", key: ":key2", value: "value2"},
+          %{group: ":not_real", key: ":anything", value: "value3"},
+          %{group: ":blacklisted_group", key: ":anything", value: "value4"}
+        ]
+      })
+
+      assert Application.get_env(:pleroma, :logger) == nil
+      assert Application.get_env(:pleroma, :key1) == "value1"
+      assert Application.get_env(:pleroma, :key2) == nil
+      assert Application.get_env(:pleroma, Pleroma.Captcha.NotReal) == nil
+      assert Application.get_env(:blacklisted_group, :anything) == nil
+    end
+
+    test "doesn't allow updating the database_config_blacklist itself", %{conn: conn} do
+      original_blacklist = Pleroma.Config.get(:database_config_blacklist)
+
+      refute ConfigDB.get_by_group_and_key(:pleroma, :database_config_blacklist)
+
+      %{"configs" => configs} =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> post("/api/pleroma/admin/config", %{
+          configs: [
+            %{
+              group: ":pleroma",
+              key: ":database_config_blacklist",
+              value: [%{"tuple" => [":pleroma", ":key1"]}]
+            }
+          ]
+        })
+        |> json_response_and_validate_schema(200)
+
+      assert configs == []
+      assert Pleroma.Config.get(:database_config_blacklist) == original_blacklist
+      refute ConfigDB.get_by_group_and_key(:pleroma, :database_config_blacklist)
+    end
+
     test "args for Pleroma.Upload.Filter.Mogrify with custom tuples", %{conn: conn} do
       assert conn
              |> put_req_header("content-type", "application/json")
@@ -1515,5 +1561,30 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
 
       assert length(response) == length(Pleroma.Docs.JSON.compiled_descriptions())
     end
+
+    test "filters by database configuration blacklist and whitelist", %{conn: conn} do
+      clear_config(:database_config_whitelist, [{:pleroma, :instance}, {:pleroma, :activitypub}, {:pleroma, Pleroma.Upload}])
+      clear_config(:database_config_blacklist, [
+        {:pleroma, Pleroma.Upload},
+      ])
+
+      children =
+        conn
+        |> get("/api/pleroma/admin/config/descriptions")
+        |> json_response_and_validate_schema(200)
+
+      assert length(children) == 2
+
+      assert Enum.count(children, fn c -> c["group"] == ":pleroma" end) == 2
+
+      instance = Enum.find(children, fn c -> c["key"] == ":instance" end)
+      assert instance["children"]
+
+      activitypub = Enum.find(children, fn c -> c["key"] == ":activitypub" end)
+      assert activitypub["children"]
+
+      web_endpoint = Enum.find(children, fn c -> c["key"] == "Pleroma.Upload" end)
+      refute web_endpoint["children"]
+    end
   end
 end

From d383c453a1a068297c27704a89629dcac3abd923 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sat, 18 Jul 2026 16:10:22 +0200
Subject: [PATCH 52/63] Elixir 1.19: Added features changelog (ConfigDB
 blacklist)

---
 changelog.d/elixir-1-19.add | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog.d/elixir-1-19.add

diff --git a/changelog.d/elixir-1-19.add b/changelog.d/elixir-1-19.add
new file mode 100644
index 000000000..b010b2dfa
--- /dev/null
+++ b/changelog.d/elixir-1-19.add
@@ -0,0 +1 @@
+Implemented ConfigDB configuration blacklist and accompanying Mix task

From 41ab34757113338ec59b56fe4e57b733f002a976 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sat, 18 Jul 2026 16:13:39 +0200
Subject: [PATCH 53/63] Lint

---
 lib/mix/tasks/pleroma/config.ex                  |  1 +
 .../admin_api/controllers/config_controller.ex   |  2 +-
 test/mix/tasks/pleroma/config_test.exs           |  7 ++-----
 .../controllers/config_controller_test.exs       | 16 +++++++++++++---
 4 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/lib/mix/tasks/pleroma/config.ex b/lib/mix/tasks/pleroma/config.ex
index d160ce533..bfdd01c70 100644
--- a/lib/mix/tasks/pleroma/config.ex
+++ b/lib/mix/tasks/pleroma/config.ex
@@ -342,6 +342,7 @@ defmodule Mix.Tasks.Pleroma.Config do
       end
     end
   end
+
   @spec migrate_to_db(Path.t() | nil) :: any()
   def migrate_to_db(file_path \\ nil) do
     with :ok <- Pleroma.Config.DeprecationWarnings.warn() do
diff --git a/lib/pleroma/web/admin_api/controllers/config_controller.ex b/lib/pleroma/web/admin_api/controllers/config_controller.ex
index 503fbc14d..78c798a3b 100644
--- a/lib/pleroma/web/admin_api/controllers/config_controller.ex
+++ b/lib/pleroma/web/admin_api/controllers/config_controller.ex
@@ -212,7 +212,7 @@ defmodule Pleroma.Web.AdminAPI.ConfigController do
 
         {blacklisted_group, blacklisted_key} ->
           group == inspect(blacklisted_group) and key == inspect(blacklisted_key)
-        end)
+      end)
     else
       true
     end
diff --git a/test/mix/tasks/pleroma/config_test.exs b/test/mix/tasks/pleroma/config_test.exs
index b35e0aed8..7513e958e 100644
--- a/test/mix/tasks/pleroma/config_test.exs
+++ b/test/mix/tasks/pleroma/config_test.exs
@@ -372,10 +372,7 @@ defmodule Mix.Tasks.Pleroma.ConfigTest do
 
     test "filters blacklisted settings" do
       clear_config(:database_config_whitelist, [{:pleroma}])
-      clear_config(:database_config_blacklist, [
-        {:pleroma, :logger},
-        {:blacklisted_group}
-      ])
+      clear_config(:database_config_blacklist, [{:pleroma, :logger}, {:blacklisted_group}])
 
       insert_config_record(:pleroma, :logger, backends: :console)
       insert_config_record(:web_push_encryption, :vapid_details, a: 1)
@@ -387,7 +384,7 @@ defmodule Mix.Tasks.Pleroma.ConfigTest do
                %ConfigDB{group: :pleroma, key: :instance},
                %ConfigDB{group: :pleroma, key: Pleroma.Captcha},
                %ConfigDB{group: :pleroma2, key: :key2},
-               %ConfigDB{group: :web_push_encryption, key: :vapid_details},
+               %ConfigDB{group: :web_push_encryption, key: :vapid_details}
              ] = config_records()
     end
 
diff --git a/test/pleroma/web/admin_api/controllers/config_controller_test.exs b/test/pleroma/web/admin_api/controllers/config_controller_test.exs
index 047662d39..902b30cdd 100644
--- a/test/pleroma/web/admin_api/controllers/config_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/config_controller_test.exs
@@ -1246,7 +1246,12 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
     end
 
     test "doesn't set keys in the blacklist", %{conn: conn} do
-      clear_config(:database_config_blacklist, [{:pleroma, :logger}, {:pleroma, :key2}, {:pleroma, Pleroma.Captcha.NotReal}, {:blacklisted_group}])
+      clear_config(:database_config_blacklist, [
+        {:pleroma, :logger},
+        {:pleroma, :key2},
+        {:pleroma, Pleroma.Captcha.NotReal},
+        {:blacklisted_group}
+      ])
 
       conn
       |> put_req_header("content-type", "application/json")
@@ -1563,9 +1568,14 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
     end
 
     test "filters by database configuration blacklist and whitelist", %{conn: conn} do
-      clear_config(:database_config_whitelist, [{:pleroma, :instance}, {:pleroma, :activitypub}, {:pleroma, Pleroma.Upload}])
+      clear_config(:database_config_whitelist, [
+        {:pleroma, :instance},
+        {:pleroma, :activitypub},
+        {:pleroma, Pleroma.Upload}
+      ])
+
       clear_config(:database_config_blacklist, [
-        {:pleroma, Pleroma.Upload},
+        {:pleroma, Pleroma.Upload}
       ])
 
       children =

From a89fe828d3f221a9670736556caf6e02972dd66d Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sat, 18 Jul 2026 20:43:33 +0200
Subject: [PATCH 54/63] ConfigDB: Don't use a different config whitelist
 globally in tests

---
 .../controllers/config_controller_test.exs    | 131 +++++++++---------
 1 file changed, 62 insertions(+), 69 deletions(-)

diff --git a/test/pleroma/web/admin_api/controllers/config_controller_test.exs b/test/pleroma/web/admin_api/controllers/config_controller_test.exs
index 902b30cdd..c11ece10d 100644
--- a/test/pleroma/web/admin_api/controllers/config_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/config_controller_test.exs
@@ -194,19 +194,9 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
 
     setup do: clear_config(:configurable_from_database, true)
 
-    setup do:
-            clear_config(:database_config_whitelist, [
-              {:pleroma},
-              {:http},
-              {:idna},
-              {:oban},
-              {:tesla},
-              {:ueberauth}
-            ])
-
     test "create new config setting in db", %{conn: conn} do
-      ueberauth = Application.get_env(:ueberauth, Ueberauth)
-      on_exit(fn -> Application.put_env(:ueberauth, Ueberauth, ueberauth) end)
+      aws = Application.get_env(:ex_aws, :s3)
+      on_exit(fn -> Application.put_env(:ex_aws, :s3, aws) end)
 
       conn =
         conn
@@ -215,9 +205,9 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
           configs: [
             %{group: ":pleroma", key: ":key1", value: "value1"},
             %{
-              group: ":ueberauth",
-              key: "Ueberauth",
-              value: [%{"tuple" => [":consumer_secret", "aaaa"]}]
+              group: ":cors_plug",
+              key: ":key1",
+              value: [%{"tuple" => [":key", "value"]}]
             },
             %{
               group: ":pleroma",
@@ -244,9 +234,9 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
               value: %{":nested_5" => ":upload", "endpoint" => "https://example.com"}
             },
             %{
-              group: ":idna",
-              key: ":key5",
-              value: %{"tuple" => ["string", "Pleroma.Captcha.NotReal", []]}
+              group: ":ex_aws",
+              key: ":s3",
+              value: %{"tuple" => ["access_key_id", "aaaa", []]}
             }
           ]
         })
@@ -260,10 +250,10 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
                    "db" => [":key1"]
                  },
                  %{
-                   "group" => ":ueberauth",
-                   "key" => "Ueberauth",
-                   "value" => [%{"tuple" => [":consumer_secret", "aaaa"]}],
-                   "db" => [":consumer_secret"]
+                   "group" => ":cors_plug",
+                   "key" => ":key1",
+                   "value" => [%{"tuple" => [":key", "value"]}],
+                   "db" => [":key"]
                  },
                  %{
                    "group" => ":pleroma",
@@ -293,10 +283,10 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
                    "db" => [":key4"]
                  },
                  %{
-                   "group" => ":idna",
-                   "key" => ":key5",
-                   "value" => %{"tuple" => ["string", "Pleroma.Captcha.NotReal", []]},
-                   "db" => [":key5"]
+                   "group" => ":ex_aws",
+                   "key" => ":s3",
+                   "value" => %{"tuple" => ["access_key_id", "aaaa", []]},
+                   "db" => [":s3"]
                  }
                ],
                "need_reboot" => false
@@ -322,18 +312,19 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
                nested_5: :upload
              }
 
-      assert Application.get_env(:idna, :key5) == {"string", Pleroma.Captcha.NotReal, []}
+      assert Application.get_env(:cors_plug, :key1) == [key: "value"]
+      assert Application.get_env(:ex_aws, :s3) == {"access_key_id", "aaaa", []}
     end
 
     test "save configs setting without explicit key", %{conn: conn} do
-      adapter = Application.get_env(:http, :adapter)
-      send_user_agent = Application.get_env(:http, :send_user_agent)
-      user_agent = Application.get_env(:http, :user_agent)
+      mime = Application.get_env(:mime, :library)
+      prometheus = Application.get_env(:prometheus, Pleroma.Web.Endpoint.MetricsExporter)
+      web_push = Application.get_env(:web_push_encryption, :vapid_details)
 
       on_exit(fn ->
-        Application.put_env(:http, :adapter, adapter)
-        Application.put_env(:http, :send_user_agent, send_user_agent)
-        Application.put_env(:http, :user_agent, user_agent)
+        Application.put_env(:mime, :library, mime)
+        Application.put_env(:prometheus, Pleroma.Web.Endpoint.MetricsExporter, prometheus)
+        Application.put_env(:web_push_encryption, :vapid_details, web_push)
       end)
 
       conn =
@@ -342,19 +333,19 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
         |> post("/api/pleroma/admin/config", %{
           configs: [
             %{
-              group: ":http",
-              key: ":adapter",
+              group: ":mime",
+              key: ":library",
               value: [":someval"]
             },
             %{
-              group: ":http",
-              key: ":send_user_agent",
+              group: ":prometheus",
+              key: "Pleroma.Web.Endpoint.MetricsExporter",
               value: true
             },
             %{
-              group: ":http",
-              key: ":user_agent",
-              value: [":default"]
+              group: ":web_push_encryption",
+              key: ":vapid_details",
+              value: [":nope"]
             }
           ]
         })
@@ -362,30 +353,30 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
       assert json_response_and_validate_schema(conn, 200) == %{
                "configs" => [
                  %{
-                   "group" => ":http",
-                   "key" => ":adapter",
+                   "group" => ":mime",
+                   "key" => ":library",
                    "value" => [":someval"],
-                   "db" => [":adapter"]
+                   "db" => [":library"]
                  },
                  %{
-                   "group" => ":http",
-                   "key" => ":send_user_agent",
+                   "group" => ":prometheus",
+                   "key" => "Pleroma.Web.Endpoint.MetricsExporter",
                    "value" => true,
-                   "db" => [":send_user_agent"]
+                   "db" => ["Pleroma.Web.Endpoint.MetricsExporter"]
                  },
                  %{
-                   "group" => ":http",
-                   "key" => ":user_agent",
-                   "value" => [":default"],
-                   "db" => [":user_agent"]
+                   "group" => ":web_push_encryption",
+                   "key" => ":vapid_details",
+                   "value" => [":nope"],
+                   "db" => [":vapid_details"]
                  }
                ],
                "need_reboot" => false
              }
 
-      assert Application.get_env(:http, :adapter) == [:someval]
-      assert Application.get_env(:http, :send_user_agent) == true
-      assert Application.get_env(:http, :user_agent) == [:default]
+      assert Application.get_env(:mime, :library) == [:someval]
+      assert Application.get_env(:prometheus, Pleroma.Web.Endpoint.MetricsExporter) == true
+      assert Application.get_env(:web_push_encryption, :vapid_details) == [:nope]
     end
 
     test "saving config with partial update", %{conn: conn} do
@@ -631,17 +622,17 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
         |> put_req_header("content-type", "application/json")
         |> post("/api/pleroma/admin/config", %{
           configs: [
-            %{group: ":tesla", key: ":adapter", value: "Tesla.Adapter.Httpc"}
+            %{group: ":pleroma", key: ":key1", value: "Pleroma.Web.Endpoint"}
           ]
         })
 
       assert json_response_and_validate_schema(conn, 200) == %{
                "configs" => [
                  %{
-                   "group" => ":tesla",
-                   "key" => ":adapter",
-                   "value" => "Tesla.Adapter.Httpc",
-                   "db" => [":adapter"]
+                   "group" => ":pleroma",
+                   "key" => ":key1",
+                   "value" => "Pleroma.Web.Endpoint",
+                   "db" => [":key1"]
                  }
                ],
                "need_reboot" => false
@@ -653,14 +644,14 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
       admin: admin,
       token: token
     } do
-      ueberauth = Application.get_env(:ueberauth, Ueberauth)
+      prometheus = Application.get_env(:prometheus, Pleroma.Web.Endpoint.MetricsExporter)
       insert(:config, key: :keyaa1)
       insert(:config, key: :keyaa2)
 
       config3 =
         insert(:config,
-          group: :ueberauth,
-          key: Ueberauth
+          group: :prometheus,
+          key: Pleroma.Web.Endpoint.MetricsExporter
         )
 
       conn =
@@ -693,7 +684,9 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
 
       assert Application.get_env(:pleroma, :keyaa1) == "another_value"
       assert Application.get_env(:pleroma, :keyaa2) == "another_value"
-      assert Application.get_env(:ueberauth, Ueberauth) == config3.value
+
+      assert Application.get_env(:prometheus, Pleroma.Web.Endpoint.MetricsExporter) ==
+               config3.value
 
       conn =
         build_conn()
@@ -704,8 +697,8 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
           configs: [
             %{group: ":pleroma", key: ":keyaa2", delete: true},
             %{
-              group: ":ueberauth",
-              key: "Ueberauth",
+              group: ":prometheus",
+              key: "Pleroma.Web.Endpoint.MetricsExporter",
               delete: true
             }
           ]
@@ -716,7 +709,7 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
                "need_reboot" => false
              }
 
-      assert Application.get_env(:ueberauth, Ueberauth) == ueberauth
+      assert Application.get_env(:prometheus, Pleroma.Web.Endpoint.MetricsExporter) == prometheus
       refute Keyword.has_key?(Application.get_all_env(:pleroma), :keyaa2)
     end
 
@@ -1021,8 +1014,8 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
         |> post("/api/pleroma/admin/config", %{
           configs: [
             %{
-              "group" => ":oban",
-              "key" => ":queues",
+              "group" => ":pleroma",
+              "key" => ":nonexist_oban_queues",
               "value" => [
                 %{"tuple" => [":federator_incoming", 50]},
                 %{"tuple" => [":federator_outgoing", 50]},
@@ -1039,8 +1032,8 @@ defmodule Pleroma.Web.AdminAPI.ConfigControllerTest do
       assert json_response_and_validate_schema(conn, 200) == %{
                "configs" => [
                  %{
-                   "group" => ":oban",
-                   "key" => ":queues",
+                   "group" => ":pleroma",
+                   "key" => ":nonexist_oban_queues",
                    "value" => [
                      %{"tuple" => [":federator_incoming", 50]},
                      %{"tuple" => [":federator_outgoing", 50]},

From a9aa19585b4d1fb28ded5c7b717e5e6d8b7b610f Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sat, 18 Jul 2026 23:02:38 +0200
Subject: [PATCH 55/63] Elixir 1.19: Emit debug logger reconfiguration logs in
 test env as well

---
 lib/pleroma/config/deprecation_warnings.ex | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/lib/pleroma/config/deprecation_warnings.ex b/lib/pleroma/config/deprecation_warnings.ex
index 8f8786ee7..934a4a02e 100644
--- a/lib/pleroma/config/deprecation_warnings.ex
+++ b/lib/pleroma/config/deprecation_warnings.ex
@@ -424,16 +424,16 @@ defmodule Pleroma.Config.DeprecationWarnings do
     formatter = Logger.default_formatter(formatter_config)
     log_level = Keyword.get(config, :level, nil)
 
+    Logger.debug("""
+    Reconfiguring console Logger with deprecated configuration syntax.
+      Handler configuration:
+        log_level: #{inspect(log_level)}
+
+      Formatter:
+        #{inspect(formatter)}
+    """)
+
     if Config.get(:env) != :test do
-      Logger.debug("""
-      Reconfiguring console Logger with deprecated configuration syntax.
-        Handler configuration:
-          log_level: #{inspect(log_level)}
-
-        Formatter:
-          #{inspect(formatter)}
-      """)
-
       if log_level, do: :logger.update_handler_config(:default, :level, log_level)
       :logger.set_handler_config(:default, :formatter, formatter)
     end

From 70cb241173bad3d682c6c889db24171fc69a2550 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sat, 18 Jul 2026 23:07:52 +0200
Subject: [PATCH 56/63] Elixir 1.19: Fixup unit testing CI name

---
 .woodpecker/unit-testing-elixir-1.19.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.woodpecker/unit-testing-elixir-1.19.yaml b/.woodpecker/unit-testing-elixir-1.19.yaml
index efab97223..06dc6758e 100644
--- a/.woodpecker/unit-testing-elixir-1.19.yaml
+++ b/.woodpecker/unit-testing-elixir-1.19.yaml
@@ -19,7 +19,7 @@ variables:
     - 'printf "%s" "$CI_SCRIPT" | base64 -d > /tmp/ci-script.sh && /bin/sh -xe /tmp/ci-script.sh'
 
 steps:
-  unit-testing-elixir-1.18:
+  unit-testing-elixir-1.19:
     image: elixir:1.19-otp-28-alpine
     entrypoint: *script_file_entrypoint
     environment:

From 3ab8cc1eb9afa893eaf3cc6bd1487dc5a72ffddc Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sun, 19 Jul 2026 01:29:53 +0200
Subject: [PATCH 57/63] ApplicationTest: make clear_config delete the whole env
 tree

clear_config([:logger, :backends], [value]) leaves the :logger env key
behind which breaks a ConfigDB test where the :logger key shouldn't be
stored and set.
---
 test/pleroma/application_test.exs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/pleroma/application_test.exs b/test/pleroma/application_test.exs
index b4a29fc9b..79fc18d8a 100644
--- a/test/pleroma/application_test.exs
+++ b/test/pleroma/application_test.exs
@@ -9,7 +9,7 @@ defmodule Pleroma.ApplicationTest do
 
   describe "config :pleroma, :logger, backends: [{:ex_syslogger, :ex_syslogger}]" do
     setup do
-      clear_config([:logger, :backends], [{:ex_syslogger, :ex_syslogger}])
+      clear_config([:logger], backends: [{:ex_syslogger, :ex_syslogger}])
     end
 
     test "is handled" do
@@ -24,7 +24,7 @@ defmodule Pleroma.ApplicationTest do
 
   describe "config :pleroma, :logger, :backends: [:console]" do
     setup do
-      clear_config([:logger, :backends], [:console])
+      clear_config([:logger], backends: [:console])
     end
 
     test "emits a warning" do

From 232cdab753b34baa7d8e573e97706a9bce41ae6d Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sun, 19 Jul 2026 21:37:20 +0200
Subject: [PATCH 58/63] ConfigDB: Refactor and simplify whitelist/blacklist
 filter tasks

---
 lib/mix/tasks/pleroma/config.ex | 97 ++++++++++++++-------------------
 1 file changed, 41 insertions(+), 56 deletions(-)

diff --git a/lib/mix/tasks/pleroma/config.ex b/lib/mix/tasks/pleroma/config.ex
index bfdd01c70..f49af1ef8 100644
--- a/lib/mix/tasks/pleroma/config.ex
+++ b/lib/mix/tasks/pleroma/config.ex
@@ -252,40 +252,14 @@ defmodule Mix.Tasks.Pleroma.Config do
     if whitelisted_configs in [nil, false] do
       shell_error("No unwanted settings in ConfigDB. No changes made.")
     else
-      whitelisted_groups =
-        whitelisted_configs
-        |> Enum.filter(fn
-          {_group} -> true
-          _ -> false
-        end)
-        |> Enum.map(fn {group} -> group end)
-
-      whitelisted_keys =
-        whitelisted_configs
-        |> Enum.filter(fn
-          {_group, _key} -> true
-          _ -> false
-        end)
+      {whitelisted_groups, whitelisted_keys} = get_filters(whitelisted_configs)
 
       filtered =
         from(c in ConfigDB)
         |> Repo.all()
         |> Enum.filter(&not_whitelisted?(&1, whitelisted_groups, whitelisted_keys))
 
-      if not Enum.empty?(filtered) do
-        shell_info("The following settings will be removed from ConfigDB:\n")
-        Enum.each(filtered, &dump(&1))
-
-        if force or shell_prompt("Are you sure you want to continue?", "n") in ~w(Yn Y y) do
-          filtered_ids = Enum.map(filtered, fn %{id: id} -> id end)
-
-          Repo.delete_all(from(c in ConfigDB, where: c.id in ^filtered_ids))
-        else
-          shell_error("No changes made.")
-        end
-      else
-        shell_error("No unwanted settings in ConfigDB. No changes made.")
-      end
+      do_config_filter(filtered, force)
     end
   end
 
@@ -307,39 +281,14 @@ defmodule Mix.Tasks.Pleroma.Config do
     if blacklisted_configs in [nil, false] do
       shell_error("No unwanted settings in ConfigDB. No changes made.")
     else
-      blacklisted_groups =
-        blacklisted_configs
-        |> Enum.filter(fn
-          {_group} -> true
-          _ -> false
-        end)
-
-      blacklisted_keys =
-        blacklisted_configs
-        |> Enum.filter(fn
-          {_group, _key} -> true
-          _ -> false
-        end)
+      {blacklisted_groups, blacklisted_keys} = get_filters(blacklisted_configs)
 
       filtered =
         from(c in ConfigDB)
         |> Repo.all()
         |> Enum.filter(&blacklisted?(&1, blacklisted_groups, blacklisted_keys))
 
-      if not Enum.empty?(filtered) do
-        shell_info("The following settings will be removed from ConfigDB:\n")
-        Enum.each(filtered, &dump(&1))
-
-        if force or shell_prompt("Are you sure you want to continue?", "n") in ~w(Yn Y y) do
-          filtered_ids = Enum.map(filtered, fn %{id: id} -> id end)
-
-          Repo.delete_all(from(c in ConfigDB, where: c.id in ^filtered_ids))
-        else
-          shell_error("No changes made.")
-        end
-      else
-        shell_error("No unwanted settings in ConfigDB. No changes made.")
-      end
+      do_config_filter(filtered, force)
     end
   end
 
@@ -544,13 +493,49 @@ defmodule Mix.Tasks.Pleroma.Config do
     Ecto.Adapters.SQL.query!(Repo, "ALTER SEQUENCE config_id_seq RESTART;")
   end
 
+  defp get_filters(config) do
+    groups =
+      config
+      |> Enum.filter(fn
+        {_group} -> true
+        _ -> false
+      end)
+      |>Enum.map(fn {group} -> group end)
+
+    keys =
+      config
+      |> Enum.filter(fn
+        {_group, _key} -> true
+        _ -> false
+      end)
+
+    {groups, keys}
+  end
+
   defp not_whitelisted?(%{group: group, key: key}, whitelisted_groups, whitelisted_keys) do
     not Enum.member?(whitelisted_groups, group) and
       not Enum.member?(whitelisted_keys, {group, key})
   end
 
   defp blacklisted?(%{group: group, key: key}, blacklisted_groups, blacklisted_keys) do
-    Enum.member?(blacklisted_groups, {group}) or
+    Enum.member?(blacklisted_groups, group) or
       Enum.member?(blacklisted_keys, {group, key})
   end
+
+  defp do_config_filter(filtered, _) when length(filtered) == 0 do
+    shell_error("No unwanted settings in ConfigDB. No changes made.")
+  end
+
+  defp do_config_filter(filtered, force) do
+    shell_info("The following settings will be removed from ConfigDB:\n")
+    Enum.each(filtered, &dump(&1))
+
+    if force or shell_prompt("Are you sure you want to continue?", "n") in ~w(Yn Y y) do
+      filtered_ids = Enum.map(filtered, fn %{id: id} -> id end)
+
+      Repo.delete_all(from(c in ConfigDB, where: c.id in ^filtered_ids))
+    else
+      shell_error("No changes made.")
+    end
+  end
 end

From 4c27a3c5a0f2bd0bf5956f3fbcde244f45267379 Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sun, 19 Jul 2026 21:52:31 +0200
Subject: [PATCH 59/63] ConfigDB: Refactor AdminAPI controller config filtering

---
 .../controllers/config_controller.ex          | 63 +++++++------------
 1 file changed, 23 insertions(+), 40 deletions(-)

diff --git a/lib/pleroma/web/admin_api/controllers/config_controller.ex b/lib/pleroma/web/admin_api/controllers/config_controller.ex
index 78c798a3b..0f17ca05d 100644
--- a/lib/pleroma/web/admin_api/controllers/config_controller.ex
+++ b/lib/pleroma/web/admin_api/controllers/config_controller.ex
@@ -73,8 +73,8 @@ defmodule Pleroma.Web.AdminAPI.ConfigController do
   def descriptions(conn, _params) do
     descriptions =
       Pleroma.Docs.JSON.compiled_descriptions()
-      |> Enum.filter(&whitelisted_config?/1)
-      |> Enum.reject(&blacklisted_config?/1)
+      |> Enum.filter(&allowed_config?(&1, :whitelist))
+      |> Enum.reject(&allowed_config?(&1, :blacklist))
 
     json(conn, translate_descriptions(descriptions))
   end
@@ -135,8 +135,8 @@ defmodule Pleroma.Web.AdminAPI.ConfigController do
     with :ok <- configurable_from_database() do
       results =
         configs
-        |> Enum.filter(&whitelisted_config?/1)
-        |> Enum.reject(&blacklisted_config?/1)
+        |> Enum.filter(&allowed_config?(&1, :whitelist))
+        |> Enum.reject(&allowed_config?(&1, :blacklist))
         |> Enum.map(fn
           %{group: group, key: key, delete: true} = params ->
             ConfigDB.delete(%{group: group, key: key, subkeys: params[:subkeys]})
@@ -178,51 +178,34 @@ defmodule Pleroma.Web.AdminAPI.ConfigController do
     end
   end
 
-  defp whitelisted_config?(":pleroma", ":database_config_whitelist"), do: false
+  defp allowed_config?(":pleroma", ":database_config_whitelist", _), do: true
+  defp allowed_config?(":pleroma", ":database_config_blacklist", _), do: true
 
-  defp whitelisted_config?(group, key) do
-    if whitelisted_configs = Config.get(:database_config_whitelist) do
-      Enum.any?(whitelisted_configs, fn
-        {whitelisted_group} ->
-          group == inspect(whitelisted_group)
+  defp allowed_config?(group, key, mode) do
+    configs = 
+      case mode do
+        :whitelist -> Config.get(:database_config_whitelist)
+        :blacklist -> Config.get(:database_config_blacklist)
+    end
 
-        {whitelisted_group, whitelisted_key} ->
-          group == inspect(whitelisted_group) && key == inspect(whitelisted_key)
+    if configs do
+      Enum.any?(configs, fn
+        {allowed_group} ->
+          group == inspect(allowed_group)
+
+        {allowed_group, allowed_key} ->
+          group == inspect(allowed_group) && key == inspect(allowed_key)
       end)
     else
       true
     end
   end
 
-  defp whitelisted_config?(%{group: group, key: key}) do
-    whitelisted_config?(group, key)
+  defp allowed_config?(%{group: group, key: key}, mode) do
+    allowed_config?(group, key, mode)
   end
 
-  defp whitelisted_config?(%{group: group} = config) do
-    whitelisted_config?(group, config[:key])
-  end
-
-  defp blacklisted_config?(":pleroma", ":database_config_blacklist"), do: true
-
-  defp blacklisted_config?(group, key) do
-    if blacklisted_configs = Config.get(:database_config_blacklist) do
-      Enum.any?(blacklisted_configs, fn
-        {blacklisted_group} ->
-          group == inspect(blacklisted_group)
-
-        {blacklisted_group, blacklisted_key} ->
-          group == inspect(blacklisted_group) and key == inspect(blacklisted_key)
-      end)
-    else
-      true
-    end
-  end
-
-  defp blacklisted_config?(%{group: group, key: key}) do
-    blacklisted_config?(group, key)
-  end
-
-  defp blacklisted_config?(%{group: group} = config) do
-    blacklisted_config?(group, config[:key])
+  defp allowed_config?(%{group: group} = config, mode) do
+    allowed_config?(group, config[:key], mode)
   end
 end

From 0448ba5cd2b9dee3cafdeed878c04086646ad14f Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sun, 19 Jul 2026 22:09:32 +0200
Subject: [PATCH 60/63] ApplicationTest: skip test spamming warnings from
 ExSyslogger

:warn log level is deprecated, but ExSyslogger hasn't been updated yet.
---
 test/pleroma/application_test.exs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/test/pleroma/application_test.exs b/test/pleroma/application_test.exs
index 79fc18d8a..75ddec08e 100644
--- a/test/pleroma/application_test.exs
+++ b/test/pleroma/application_test.exs
@@ -7,11 +7,15 @@ defmodule Pleroma.ApplicationTest do
 
   import ExUnit.CaptureLog
 
+  # TODO HACK: Temporarily disabled.
+  # Currently causes a bunch of warnings about :warn being deprecated in logs.
+  # ex_syslogger needs to either be updated upstream or forked.
   describe "config :pleroma, :logger, backends: [{:ex_syslogger, :ex_syslogger}]" do
     setup do
       clear_config([:logger], backends: [{:ex_syslogger, :ex_syslogger}])
     end
 
+    @tag :skip
     test "is handled" do
       log = capture_log(fn -> Pleroma.Application.configure_logger() end)
 

From bbae94ddf3844f0c5b7eabb97235e5dff672ff6f Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sun, 19 Jul 2026 22:15:37 +0200
Subject: [PATCH 61/63] Revert "Only warn about bad clear_config usage if
 warned usage is met"

What was I even thinking when writing that?

This reverts commit 3790e6786cce376cbabf2588beed27d0daf9c55c.
---
 test/support/helpers.ex | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/test/support/helpers.ex b/test/support/helpers.ex
index 259180e8f..7fa6c31a4 100644
--- a/test/support/helpers.ex
+++ b/test/support/helpers.ex
@@ -73,8 +73,7 @@ defmodule Pleroma.Tests.Helpers do
   defmacro clear_config(config_path, temp_setting) do
     # NOTE: `clear_config([section, key], value)` != `clear_config([section], key: value)` (!)
     # Displaying a warning to prevent unintentional clearing of all but one keys in section
-    if is_list(config_path) and length(config_path) == 1 and Keyword.keyword?(temp_setting) and
-         Keyword.keys(temp_setting) == [:key] do
+    if Keyword.keyword?(temp_setting) and length(temp_setting) == 1 do
       Logger.warning(
         "Please change `clear_config([section], key: value)` to `clear_config([section, key], value)`"
       )

From 00c9059252e4ef124a9cbe21a28b947993e5bcdb Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sun, 19 Jul 2026 22:23:20 +0200
Subject: [PATCH 62/63] Remove unused require Logger

---
 test/pleroma/config/deprecation_warnings_test.exs | 2 --
 1 file changed, 2 deletions(-)

diff --git a/test/pleroma/config/deprecation_warnings_test.exs b/test/pleroma/config/deprecation_warnings_test.exs
index b65b0e630..62f5bdeea 100644
--- a/test/pleroma/config/deprecation_warnings_test.exs
+++ b/test/pleroma/config/deprecation_warnings_test.exs
@@ -11,8 +11,6 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
   alias Pleroma.Config
   alias Pleroma.Config.DeprecationWarnings
 
-  require Logger
-
   describe "filter exiftool" do
     test "gives warning when still used" do
       clear_config(

From 3ba331939076f4a3785ce809bf7c0b7488ef2efe Mon Sep 17 00:00:00 2001
From: Phantasm <phantasm@centrum.cz>
Date: Sun, 19 Jul 2026 22:56:41 +0200
Subject: [PATCH 63/63] Lint

---
 lib/mix/tasks/pleroma/config.ex                            | 2 +-
 lib/pleroma/web/admin_api/controllers/config_controller.ex | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/mix/tasks/pleroma/config.ex b/lib/mix/tasks/pleroma/config.ex
index f49af1ef8..a10506236 100644
--- a/lib/mix/tasks/pleroma/config.ex
+++ b/lib/mix/tasks/pleroma/config.ex
@@ -500,7 +500,7 @@ defmodule Mix.Tasks.Pleroma.Config do
         {_group} -> true
         _ -> false
       end)
-      |>Enum.map(fn {group} -> group end)
+      |> Enum.map(fn {group} -> group end)
 
     keys =
       config
diff --git a/lib/pleroma/web/admin_api/controllers/config_controller.ex b/lib/pleroma/web/admin_api/controllers/config_controller.ex
index 0f17ca05d..753690d45 100644
--- a/lib/pleroma/web/admin_api/controllers/config_controller.ex
+++ b/lib/pleroma/web/admin_api/controllers/config_controller.ex
@@ -182,11 +182,11 @@ defmodule Pleroma.Web.AdminAPI.ConfigController do
   defp allowed_config?(":pleroma", ":database_config_blacklist", _), do: true
 
   defp allowed_config?(group, key, mode) do
-    configs = 
+    configs =
       case mode do
         :whitelist -> Config.get(:database_config_whitelist)
         :blacklist -> Config.get(:database_config_blacklist)
-    end
+      end
 
     if configs do
       Enum.any?(configs, fn