diff --git a/changelog.d/docs-otp-install-links.fix b/changelog.d/docs-otp-install-links.fix
new file mode 100644
index 000000000..28d504bc0
--- /dev/null
+++ b/changelog.d/docs-otp-install-links.fix
@@ -0,0 +1 @@
+Docs: Fixed OTP install links in documentation, broke up wall of install commands into smaller chunks, fixed sudo commands execution
diff --git a/changelog.d/grouped-notifs-embed.skip b/changelog.d/grouped-notifs-embed.skip
new file mode 100644
index 000000000..e69de29bb
diff --git a/changelog.d/mediaproxy-content-type.fix b/changelog.d/mediaproxy-content-type.fix
deleted file mode 100644
index f36dd6283..000000000
--- a/changelog.d/mediaproxy-content-type.fix
+++ /dev/null
@@ -1 +0,0 @@
-Detect image content types for extensionless MediaProxy responses.
diff --git a/changelog.d/oban-reindexer.add b/changelog.d/oban-reindexer.add
new file mode 100644
index 000000000..5b56d9482
--- /dev/null
+++ b/changelog.d/oban-reindexer.add
@@ -0,0 +1 @@
+Oban: Enabled the Reindexer plugin to reduce oban_jobs index DB bloat
diff --git a/changelog.d/syslog-fix-otp.skip b/changelog.d/syslog-fix-otp.skip
new file mode 100644
index 000000000..e69de29bb
diff --git a/changelog.d/syslog-pc.fix b/changelog.d/syslog-pc.fix
new file mode 100644
index 000000000..3f08cec47
--- /dev/null
+++ b/changelog.d/syslog-pc.fix
@@ -0,0 +1 @@
+Fix intermittent failure to compile syslog package
diff --git a/config/config.exs b/config/config.exs
index d4a70450f..e2c110689 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -607,7 +607,11 @@ config :pleroma, Oban,
     search_indexing: [limit: 10, paused: true],
     slow: 5
   ],
-  plugins: [Oban.Plugins.Lazarus, {Oban.Plugins.Pruner, max_age: 900}],
+  plugins: [
+    Oban.Plugins.Lazarus,
+    {Oban.Plugins.Pruner, max_age: 900},
+    {Oban.Plugins.Reindexer, schedule: "@weekly"}
+  ],
   crontab: [
     {"0 0 * * 0", Pleroma.Workers.Cron.DigestEmailsWorker},
     {"0 0 * * *", Pleroma.Workers.Cron.NewUsersDigestWorker},
diff --git a/docs/installation/migrating_from_source_otp_en.md b/docs/installation/migrating_from_source_otp_en.md
index 798862566..450d33804 100644
--- a/docs/installation/migrating_from_source_otp_en.md
+++ b/docs/installation/migrating_from_source_otp_en.md
@@ -76,35 +76,51 @@ $EDITOR /etc/pleroma/config.exs
 ```
 ## Installing the release
 Before proceeding, get the flavour from [Detecting flavour](otp_en.md#detecting-flavour) section in OTP installation guide.
+
+
+Delete all files in pleroma user's directory:
 ```sh
-# Delete all files in pleroma user's directory
 rm -r ~pleroma/*
+```
 
-# Set the flavour environment variable to the string you got in Detecting flavour section.
-# For example if the flavour is `amd64-musl` the command will be
+Set the flavour environment variable to the string you got in Detecting flavour section.
+For example if the flavour is `amd64-musl` the command will be:
+
+```sh
 export FLAVOUR="amd64-musl"
+```
 
-# Clone the release build into a temporary directory and unpack it
-# Replace `stable` with `unstable` if you want to run the unstable branch
-sudo -Hu pleroma "
-curl 'https://git.pleroma.social/api/v4/projects/2/jobs/artifacts/stable/download?job=$FLAVOUR' -o /tmp/pleroma.zip
-unzip /tmp/pleroma.zip -d /tmp/
-"
+Clone the release build into a temporary directory and unpack it.
+Replace `stable` with `develop`, if you want to run the develop branch.
 
-# Move the release to the home directory and delete temporary files
-sudo -Hu pleroma "
-mv /tmp/release/* ~pleroma/
-rmdir /tmp/release
-rm /tmp/pleroma.zip
-"
+```sh
+sudo -Hu pleroma curl "https://git.pleroma.social/api/packages/pleroma/generic/pleroma-otp-stable-$FLAVOUR/latest/pleroma.zip" -o /tmp/pleroma.zip
+sudo -Hu pleroma unzip /tmp/pleroma.zip -d /tmp/
+```
 
-# Start the instance to verify that everything is working as expected
+Move the release to the home directory and delete temporary files:
+
+```sh
+sudo -Hu pleroma mv /tmp/release/* ~pleroma/
+sudo -Hu pleroma rmdir /tmp/release
+sudo -Hu pleroma rm /tmp/pleroma.zip
+```
+
+Start the instance to verify that everything is working as expected:
+
+```sh
 sudo -Hu pleroma "./bin/pleroma daemon"
+```
 
-# Wait for about 20 seconds and query the instance endpoint, if it shows your uri, name and email correctly, you are configured correctly
+Wait for about 20 seconds and query the instance endpoint, if it shows your uri, name and email correctly, you are configured correctly:
+
+```sh
 sleep 20 && curl http://localhost:4000/api/v1/instance
+```
 
-# Stop the instance
+Stop the instance:
+
+```sh
 sudo -Hu pleroma "./bin/pleroma stop"
 ```
 
diff --git a/docs/installation/otp_en.md b/docs/installation/otp_en.md
index 5fc1db21e..0f296a9f6 100644
--- a/docs/installation/otp_en.md
+++ b/docs/installation/otp_en.md
@@ -130,60 +130,90 @@ Restart PostgreSQL to apply configuration changes:
     ```
 
 ### Installing Pleroma
+Create a Pleroma user:
+
 ```sh
-# Create a Pleroma user
 adduser --system --shell  /bin/false --home /opt/pleroma pleroma
+```
 
-# Set the flavour environment variable to the string you got in Detecting flavour section.
-# For example if the flavour is `amd64-musl` the command will be
+Set the flavour environment variable to the string you got in Detecting flavour section. For example if the flavour is `amd64-musl` the command will be:
+
+```sh
 export FLAVOUR="amd64-musl"
+```
 
-# Clone the release build into a temporary directory and unpack it
-sudo -Hu pleroma "
-curl 'https://git.pleroma.social/api/v4/projects/2/jobs/artifacts/stable/download?job=$FLAVOUR' -o /tmp/pleroma.zip
-unzip /tmp/pleroma.zip -d /tmp/
-"
+Clone the release build into a temporary directory and unpack it:
 
-# Move the release to the home directory and delete temporary files
-sudo -Hu pleroma "
-mv /tmp/release/* /opt/pleroma
-rmdir /tmp/release
-rm /tmp/pleroma.zip
-"
-# Create uploads directory and set proper permissions (skip if planning to use a remote uploader)
-# Note: It does not have to be `/var/lib/pleroma/uploads`, the config generator will ask about the upload directory later
+```sh
+sudo -Hu pleroma curl "https://git.pleroma.social/api/packages/pleroma/generic/pleroma-otp-stable-$FLAVOUR/latest/pleroma.zip" -o /tmp/pleroma.zip
+sudo -Hu pleroma unzip /tmp/pleroma.zip -d /tmp/
+```
 
+Move the release to the home directory and delete temporary files:
+
+```sh
+sudo -Hu pleroma mv /tmp/release/* /opt/pleroma
+sudo -Hu pleroma rmdir /tmp/release
+sudo -Hu pleroma rm /tmp/pleroma.zip
+```
+
+Create uploads directory and set proper permissions (skip if planning to use a remote uploader).
+Note: It does not have to be `/var/lib/pleroma/uploads`, the config generator will ask about the upload directory later.
+
+```sh
 mkdir -p /var/lib/pleroma/uploads
 chown -R pleroma /var/lib/pleroma
+```
 
-# Create custom public files directory (custom emojis, frontend bundle overrides, robots.txt, etc.)
-# Note: It does not have to be `/var/lib/pleroma/static`, the config generator will ask about the custom public files directory later
+Create custom public files directory (custom emojis, frontend bundle overrides, robots.txt, etc.)
+Note: It does not have to be `/var/lib/pleroma/static`, the config generator will ask about the custom public files directory later.
+
+```sh
 mkdir -p /var/lib/pleroma/static
 chown -R pleroma /var/lib/pleroma
+```
 
-# Create a config directory
+Create a config directory:
+
+```sh
 mkdir -p /etc/pleroma
 chown -R pleroma /etc/pleroma
+```
 
-# Run the config generator
+Run the config generator:
+
+```sh
 sudo -Hu pleroma "./bin/pleroma_ctl instance gen --output /etc/pleroma/config.exs --output-psql /tmp/setup_db.psql"
+```
 
-# Create the postgres database
+Create the postgres database and schema:
+
+```sh
 sudo -u postgres -s $SHELL -lc "psql -f /tmp/setup_db.psql"
-
-# Create the database schema
 sudo -Hu pleroma "./bin/pleroma_ctl migrate"
+```
 
-# If you have installed RUM indexes uncommend and run
-# sudo -Hu pleroma "./bin/pleroma_ctl migrate --migrations-path priv/repo/optional_migrations/rum_indexing/"
+(Optional) If you have installed RUM indexes:
 
-# Start the instance to verify that everything is working as expected
+```sh
+sudo -Hu pleroma "./bin/pleroma_ctl migrate --migrations-path priv/repo/optional_migrations/rum_indexing/"
+```
+
+Start the instance to verify that everything is working as expected:
+
+```sh
 sudo -Hu pleroma "./bin/pleroma daemon"
+```
 
-# Wait for about 20 seconds and query the instance endpoint, if it shows your uri, name and email correctly, you are configured correctly
+Wait for about 20 seconds and query the instance endpoint, if it shows your uri, name and email correctly, you are configured correctly:
+
+```sh
 sleep 20 && curl http://localhost:4000/api/v1/instance
+```
 
-# Stop the instance
+Stop the instance:
+
+```sh
 sudo -Hu pleroma "./bin/pleroma stop"
 ```
 
diff --git a/lib/pleroma/reverse_proxy.ex b/lib/pleroma/reverse_proxy.ex
index 12e48eadd..ee20303a3 100644
--- a/lib/pleroma/reverse_proxy.ex
+++ b/lib/pleroma/reverse_proxy.ex
@@ -17,7 +17,6 @@ defmodule Pleroma.ReverseProxy do
   @max_read_duration :timer.seconds(30)
   @max_body_length :infinity
   @failed_request_ttl :timer.seconds(60)
-  @sniff_bytes 8 * 1024
   @methods ~w(GET HEAD)
 
   @allowed_mime_types Pleroma.Config.get([Pleroma.Upload, :allowed_mime_types], [])
@@ -70,12 +69,7 @@ defmodule Pleroma.ReverseProxy do
   * `inline_content_types`:
     * `true` will not alter `content-disposition` (up to the upstream),
     * `false` will add `content-disposition: attachment` to any request,
-    * a list of whitelisted content types for which `content-disposition: inline`
-    is always set (overriding any upstream header) so the media can be embedded
-    in pages; the filename is derived from the content type
-
-  * `sniff_content_type` (default `false`): detects an image MIME type from the first
-  response chunk when the upstream type is missing or `application/octet-stream`.
+    * a list of whitelisted content types
 
   * `req_headers`, `resp_headers` additional headers.
 
@@ -112,7 +106,6 @@ defmodule Pleroma.ReverseProxy do
           | {:req_headers, [{String.t(), String.t()}]}
           | {:resp_headers, [{String.t(), String.t()}]}
           | {:inline_content_types, boolean() | list(String.t())}
-          | {:sniff_content_type, boolean()}
           | {:redirect_on_failure, boolean()}
 
   @spec call(Plug.Conn.t(), String.t(), list(option())) :: Plug.Conn.t()
@@ -228,30 +221,11 @@ defmodule Pleroma.ReverseProxy do
   defp response(conn, client, url, status, headers, opts) do
     Logger.debug("#{__MODULE__} #{status} #{url} #{inspect(headers)}")
 
-    case maybe_prefetch_for_content_type(headers, client, opts) do
-      {_headers, client, {:error, {:upstream, error}}} ->
-        Logger.warning(
-          "#{__MODULE__} request to #{url} failed before streaming: #{inspect(error)}"
-        )
-
-        client().close(client)
-        track_failed_url(url, error, opts)
-
-        conn
-        |> error_or_redirect(url, 500, "Request failed", opts)
-        |> halt()
-
-      {headers, client, prefetched} ->
-        stream_response(conn, client, url, status, headers, opts, prefetched)
-    end
-  end
-
-  defp stream_response(conn, client, url, status, headers, opts, prefetched) do
     result =
       conn
       |> put_resp_headers(build_resp_headers(headers, opts))
       |> send_chunked(status)
-      |> chunk_reply(client, opts, prefetched)
+      |> chunk_reply(client, opts)
 
     case result do
       {:ok, conn} ->
@@ -272,29 +246,18 @@ defmodule Pleroma.ReverseProxy do
     end
   end
 
-  defp chunk_reply(conn, client, opts, :none) do
+  defp chunk_reply(conn, client, opts) do
     chunk_reply(conn, client, opts, 0, 0)
   end
 
-  defp chunk_reply(conn, _client, _opts, :done), do: {:ok, conn}
-  defp chunk_reply(conn, _client, _opts, {:error, error}), do: {:error, error, conn}
-
-  defp chunk_reply(conn, client, opts, {:ok, data, duration}) do
-    with :ok <-
-           body_size_constraint(
-             byte_size(data),
-             Keyword.get(opts, :max_body_length, @max_body_length)
-           ),
-         {:ok, conn} <- write_chunk(conn, data) do
-      chunk_reply(conn, client, opts, byte_size(data), duration)
-    else
-      {:error, {:downstream, error}} -> {:error, {:downstream, error}, conn}
-      {:error, error} -> {:error, {:upstream, error}, conn}
-    end
-  end
-
   defp chunk_reply(conn, client, opts, sent_so_far, duration) do
-    with {:ok, data, client, duration} <- read_chunk(client, duration, opts),
+    with {:ok, duration} <-
+           check_read_duration(
+             duration,
+             Keyword.get(opts, :max_read_duration, @max_read_duration)
+           ),
+         {:ok, data, client} <- client().stream_body(client),
+         {:ok, duration} <- increase_read_duration(duration),
          sent_so_far = sent_so_far + byte_size(data),
          :ok <-
            body_size_constraint(
@@ -310,24 +273,6 @@ defmodule Pleroma.ReverseProxy do
     end
   end
 
-  defp read_chunk(client, duration, opts) do
-    result =
-      with {:ok, timer} <-
-             check_read_duration(
-               duration,
-               Keyword.get(opts, :max_read_duration, @max_read_duration)
-             ),
-           {:ok, data, client} <- client().stream_body(client),
-           {:ok, duration} <- increase_read_duration(timer) do
-        {:ok, data, client, duration}
-      end
-
-    case result do
-      {:error, error} -> {:error, {:upstream, error}}
-      result -> result
-    end
-  end
-
   defp write_chunk(conn, data) do
     case chunk(conn, data) do
       {:error, error} -> {:error, {:downstream, error}}
@@ -335,54 +280,6 @@ defmodule Pleroma.ReverseProxy do
     end
   end
 
-  defp maybe_prefetch_for_content_type(headers, client, opts) do
-    if Keyword.get(opts, :sniff_content_type, false) and generic_content_type?(headers) do
-      case read_chunk(client, 0, opts) do
-        {:ok, data, client, duration} ->
-          {maybe_put_image_content_type(headers, data), client, {:ok, data, duration}}
-
-        :done ->
-          {headers, client, :done}
-
-        {:error, error} ->
-          {headers, client, {:error, error}}
-      end
-    else
-      {headers, client, :none}
-    end
-  end
-
-  defp generic_content_type?(headers) do
-    headers
-    |> get_content_type()
-    |> String.trim()
-    |> String.downcase()
-    |> then(&(&1 in ["", "application/octet-stream"]))
-  end
-
-  defp maybe_put_image_content_type(headers, data) do
-    with false <- data == "",
-         {:ok, %{mime_type: "image/" <> _ = content_type}} <-
-           Majic.perform({:bytes, binary_part(data, 0, min(byte_size(data), @sniff_bytes))},
-             pool: Pleroma.MajicPool
-           ) do
-      [
-        {"content-type", content_type}
-        | Enum.reject(headers, fn {key, _} -> key == "content-type" end)
-      ]
-    else
-      _ -> headers
-    end
-  rescue
-    error ->
-      Logger.debug("#{__MODULE__}: content-type sniffing failed: #{Exception.message(error)}")
-      headers
-  catch
-    kind, reason ->
-      Logger.debug("#{__MODULE__}: content-type sniffing failed: #{kind}: #{inspect(reason)}")
-      headers
-  end
-
   defp head_response(conn, url, code, headers, opts) do
     Logger.debug("#{__MODULE__} #{code} #{url} #{inspect(headers)}")
 
@@ -430,33 +327,16 @@ defmodule Pleroma.ReverseProxy do
     |> build_req_range_or_encoding_header(opts)
     |> build_req_user_agent_header(opts)
     |> merge_headers(Keyword.get(opts, :req_headers, []))
-    |> maybe_force_identity_encoding(opts)
-  end
-
-  defp merge_headers(headers, extra_headers) do
-    Enum.reduce(extra_headers, headers, fn {key, value}, headers ->
-      List.keystore(headers, String.downcase(key), 0, {String.downcase(key), value})
-    end)
-  end
-
-  defp maybe_force_identity_encoding(headers, opts) do
-    if Keyword.get(opts, :sniff_content_type, false) do
-      List.keystore(headers, "accept-encoding", 0, {"accept-encoding", "identity"})
-    else
-      headers
-    end
   end
 
   # Disable content-encoding if any @range_headers are requested (see #1823).
   defp build_req_range_or_encoding_header(headers, _opts) do
     range? = Enum.any?(headers, fn {header, _} -> Enum.member?(@range_headers, header) end)
 
-    cond do
-      range? && List.keymember?(headers, "accept-encoding", 0) ->
-        List.keydelete(headers, "accept-encoding", 0)
-
-      true ->
-        headers
+    if range? && List.keymember?(headers, "accept-encoding", 0) do
+      List.keydelete(headers, "accept-encoding", 0)
+    else
+      headers
     end
   end
 
@@ -479,6 +359,12 @@ defmodule Pleroma.ReverseProxy do
     |> ensure_no_transform()
   end
 
+  defp merge_headers(headers, extra_headers) do
+    Enum.reduce(extra_headers, headers, fn {key, value}, headers ->
+      List.keystore(headers, String.downcase(key), 0, {String.downcase(key), value})
+    end)
+  end
+
   defp ensure_no_transform(headers) do
     {_, cache_control} =
       List.keyfind(headers, "cache-control", 0, {"cache-control", @default_cache_control_header})
@@ -568,20 +454,7 @@ defmodule Pleroma.ReverseProxy do
 
       replace_header(headers, "content-disposition", disposition)
     else
-      if opt == true do
-        headers
-      else
-        name = inline_filename(content_type)
-
-        disposition =
-          if name do
-            "inline; filename=\"#{name}\""
-          else
-            "inline"
-          end
-
-        replace_header(headers, "content-disposition", disposition)
-      end
+      headers
     end
   end
 
@@ -589,13 +462,6 @@ defmodule Pleroma.ReverseProxy do
     [{key, value} | Enum.reject(headers, fn {header, _} -> header == key end)]
   end
 
-  defp inline_filename(content_type) do
-    case MIME.extensions(content_type) do
-      [ext | _] when ext != "" -> "inline.#{ext}"
-      _ -> nil
-    end
-  end
-
   defp header_length_constraint(headers, limit) do
     lengths =
       for {"content-length", value} <- headers,
@@ -640,9 +506,7 @@ defmodule Pleroma.ReverseProxy do
     end
   end
 
-  defp check_read_duration(_, _), do: {:ok, :no_duration_limit}
-
-  defp increase_read_duration(:no_duration_limit), do: {:ok, :no_duration_limit}
+  defp check_read_duration(_, _), do: {:ok, :no_duration_limit, :no_duration_limit}
 
   defp increase_read_duration({previous_duration, started})
        when is_integer(previous_duration) and is_integer(started) do
diff --git a/lib/pleroma/web/api_spec/operations/notification_operation.ex b/lib/pleroma/web/api_spec/operations/notification_operation.ex
index 6c8f7d5e9..740f7645d 100644
--- a/lib/pleroma/web/api_spec/operations/notification_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/notification_operation.ex
@@ -8,6 +8,7 @@ defmodule Pleroma.Web.ApiSpec.NotificationOperation do
   alias Pleroma.Web.ApiSpec.Schemas.Account
   alias Pleroma.Web.ApiSpec.Schemas.ApiError
   alias Pleroma.Web.ApiSpec.Schemas.BooleanLike
+  alias Pleroma.Web.ApiSpec.Schemas.ChatMessage
   alias Pleroma.Web.ApiSpec.Schemas.Status
   alias Pleroma.Web.ApiSpec.Schemas.VisibilityScope
 
@@ -304,7 +305,25 @@ defmodule Pleroma.Web.ApiSpec.NotificationOperation do
         page_max_id: %Schema{type: :string, nullable: true},
         latest_page_notification_at: %Schema{type: :string, format: :"date-time", nullable: true},
         sample_account_ids: %Schema{type: :array, items: %Schema{type: :string}},
-        status_id: %Schema{type: :string, nullable: true}
+        status_id: %Schema{type: :string, nullable: true},
+        target_id: %Schema{
+          type: :string,
+          description: "ID of the target account for a move notification"
+        },
+        emoji: %Schema{
+          type: :string,
+          description: "Emoji used for an emoji reaction notification"
+        },
+        emoji_url: %Schema{
+          type: :string,
+          nullable: true,
+          description: "URL of the custom emoji used for an emoji reaction notification"
+        },
+        chat_message: ChatMessage,
+        report: %Schema{
+          type: :object,
+          description: "Report embedded in a report notification"
+        }
       },
       required: [
         :group_key,
diff --git a/lib/pleroma/web/mastodon_api/views/notification_view.ex b/lib/pleroma/web/mastodon_api/views/notification_view.ex
index 33d4b2924..eadfac4a0 100644
--- a/lib/pleroma/web/mastodon_api/views/notification_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/notification_view.ex
@@ -101,13 +101,13 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
       |> Enum.filter(& &1)
       |> Enum.uniq_by(& &1[:id])
 
-    actors =
+    accounts =
       notification_groups
       |> List.flatten()
-      |> notification_actors()
+      |> notification_accounts()
 
     %{
-      accounts: AccountView.render("index.json", %{users: actors, for: reading_user}),
+      accounts: AccountView.render("index.json", %{users: accounts, for: reading_user}),
       statuses: statuses,
       notification_groups:
         Enum.map(
@@ -191,7 +191,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
 
   defp render_group(
          [%Notification{} = notification | _] = notifications,
-         _reading_user,
+         reading_user,
          grouped_types,
          notification_group_counts,
          notification_group_bounds,
@@ -237,13 +237,49 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
         response
       end
 
-    if status_activity do
-      Map.put(response, :status_id, to_string(status_activity.id))
-    else
-      response
+    response =
+      if status_activity do
+        Map.put(response, :status_id, to_string(status_activity.id))
+      else
+        response
+      end
+
+    put_group_details(response, notification, reading_user)
+  end
+
+  defp put_group_details(response, %Notification{type: "move", activity: activity}, _reading_user) do
+    case User.get_cached_by_ap_id(activity.data["target"]) do
+      %User{id: id} -> Map.put(response, :target_id, to_string(id))
+      _ -> response
     end
   end
 
+  defp put_group_details(
+         response,
+         %Notification{type: "pleroma:emoji_reaction", activity: activity},
+         _reading_user
+       ) do
+    put_emoji(response, activity)
+  end
+
+  defp put_group_details(
+         response,
+         %Notification{type: "pleroma:chat_mention", activity: activity},
+         reading_user
+       ) do
+    put_chat_message(response, activity, reading_user, %{})
+  end
+
+  defp put_group_details(
+         response,
+         %Notification{type: "pleroma:report", activity: activity},
+         _reading_user
+       ) do
+    put_report(response, activity)
+  end
+
+  defp put_group_details(response, _notification, _reading_user), do: response
+
   defp status_activity_for_group([%Notification{} = notification | _], grouped_types) do
     status_activity_for(notification, grouped_types)
   end
@@ -287,6 +323,19 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
     |> Enum.uniq_by(& &1.id)
   end
 
+  defp notification_accounts(notifications) do
+    move_targets =
+      notifications
+      |> Enum.filter(&(&1.type == "move"))
+      |> Enum.map(&User.get_cached_by_ap_id(&1.activity.data["target"]))
+      |> Enum.filter(& &1)
+
+    notifications
+    |> notification_actors()
+    |> Kernel.++(move_targets)
+    |> Enum.uniq_by(& &1.id)
+  end
+
   defp put_emoji(response, activity) do
     response
     |> Map.put(:emoji, activity.data["content"])
diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex
index 356e8fce5..4625be47c 100644
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@@ -631,7 +631,6 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
         String.contains?(media_type, "image") -> "image"
         String.contains?(media_type, "video") -> "video"
         String.contains?(media_type, "audio") -> "audio"
-        attachment["type"] == "Image" -> "image"
         true -> "unknown"
       end
 
diff --git a/lib/pleroma/web/media_proxy/media_proxy_controller.ex b/lib/pleroma/web/media_proxy/media_proxy_controller.ex
index 93f692008..a0aafc32e 100644
--- a/lib/pleroma/web/media_proxy/media_proxy_controller.ex
+++ b/lib/pleroma/web/media_proxy/media_proxy_controller.ex
@@ -208,7 +208,6 @@ defmodule Pleroma.Web.MediaProxy.MediaProxyController do
 
   defp media_proxy_opts do
     Config.get([:media_proxy, :proxy_opts], [])
-    |> Keyword.put_new(:sniff_content_type, true)
   end
 
   defp sandbox(conn, _params) do
diff --git a/mix.exs b/mix.exs
index 4f82b1f53..140aafb98 100644
--- a/mix.exs
+++ b/mix.exs
@@ -172,6 +172,14 @@ defmodule Pleroma.Mixfile do
       {:gen_smtp, "~> 0.15"},
       {:mua, "~> 0.2.4"},
       {:mail, "~> 0.3.1"},
+      # Fixes intermittent failure to compile due to an old pc version,
+      # upstream hasn't made a release with the fix yet.
+      # https://github.com/Vagabond/erlang-syslog/pull/44
+      {:syslog,
+       git: "https://github.com/Vagabond/erlang-syslog",
+       ref: "614a1fde7a8654bee2815b599bbdaae1bb0323b5",
+       override: true,
+       runtime: false},
       {:ex_syslogger, "~> 1.5"},
       {:floki, "~> 0.38"},
       {:timex, "~> 3.7"},
diff --git a/mix.lock b/mix.lock
index a4db3f68d..bca6f777b 100644
--- a/mix.lock
+++ b/mix.lock
@@ -139,7 +139,7 @@
   "statistex": {:hex, :statistex, "1.1.0", "7fec1eb2f580a0d2c1a05ed27396a084ab064a40cfc84246dbfb0c72a5c761e5", [:mix], [], "hexpm", "f5950ea26ad43246ba2cce54324ac394a4e7408fdcf98b8e230f503a0cba9cf5"},
   "sweet_xml": {:hex, :sweet_xml, "0.7.5", "803a563113981aaac202a1dbd39771562d0ad31004ddbfc9b5090bdcd5605277", [:mix], [], "hexpm", "193b28a9b12891cae351d81a0cead165ffe67df1b73fe5866d10629f4faefb12"},
   "swoosh": {:hex, :swoosh, "1.16.12", "cbb24ad512f2f7f24c7a469661c188a00a8c2cd64e0ab54acd1520f132092dfd", [:mix], [{:bandit, ">= 1.0.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:cowboy, "~> 1.1 or ~> 2.4", [hex: :cowboy, repo: "hexpm", optional: true]}, {:ex_aws, "~> 2.1", [hex: :ex_aws, repo: "hexpm", optional: true]}, {:finch, "~> 0.6", [hex: :finch, repo: "hexpm", optional: true]}, {:gen_smtp, "~> 0.13 or ~> 1.0", [hex: :gen_smtp, repo: "hexpm", optional: true]}, {:hackney, "~> 1.9", [hex: :hackney, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mail, "~> 0.2", [hex: :mail, repo: "hexpm", optional: true]}, {:mime, "~> 1.1 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mua, "~> 0.2.3", [hex: :mua, repo: "hexpm", optional: true]}, {:multipart, "~> 0.4", [hex: :multipart, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: true]}, {:plug_cowboy, ">= 1.0.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:req, "~> 0.5 or ~> 1.0", [hex: :req, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.2 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "0e262df1ae510d59eeaaa3db42189a2aa1b3746f73771eb2616fc3f7ee63cc20"},
-  "syslog": {:hex, :syslog, "1.1.0", "6419a232bea84f07b56dc575225007ffe34d9fdc91abe6f1b2f254fd71d8efc2", [:rebar3], [], "hexpm", "4c6a41373c7e20587be33ef841d3de6f3beba08519809329ecc4d27b15b659e1"},
+  "syslog": {:git, "https://github.com/Vagabond/erlang-syslog", "614a1fde7a8654bee2815b599bbdaae1bb0323b5", [ref: "614a1fde7a8654bee2815b599bbdaae1bb0323b5"]},
   "table_rex": {:hex, :table_rex, "4.1.0", "fbaa8b1ce154c9772012bf445bfb86b587430fb96f3b12022d3f35ee4a68c918", [:mix], [], "hexpm", "95932701df195d43bc2d1c6531178fc8338aa8f38c80f098504d529c43bc2601"},
   "telemetry": {:hex, :telemetry, "1.0.0", "0f453a102cdf13d506b7c0ab158324c337c41f1cc7548f0bc0e130bbf0ae9452", [:rebar3], [], "hexpm", "73bc09fa59b4a0284efb4624335583c528e07ec9ae76aca96ea0673850aec57a"},
   "telemetry_metrics": {:hex, :telemetry_metrics, "0.6.2", "2caabe9344ec17eafe5403304771c3539f3b6e2f7fb6a6f602558c825d0d0bfb", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "9b43db0dc33863930b9ef9d27137e78974756f5f198cae18409970ed6fa5b561"},
diff --git a/test/pleroma/reverse_proxy_test.exs b/test/pleroma/reverse_proxy_test.exs
index bf0a809c4..156b7d7ed 100644
--- a/test/pleroma/reverse_proxy_test.exs
+++ b/test/pleroma/reverse_proxy_test.exs
@@ -579,56 +579,6 @@ defmodule Pleroma.ReverseProxyTest do
     assert Conn.get_resp_header(conn, "content-type") == ["application/octet-stream"]
   end
 
-  test "sniffs and preserves an image body with a generic content type", %{conn: conn} do
-    body = File.read!("test/fixtures/image.jpg")
-
-    ClientMock
-    |> expect(:request, fn :get, "/extensionless", headers, _, _ ->
-      assert {"accept-encoding", "identity"} in headers
-      {:ok, 200, [{"content-type", "application/octet-stream"}], %{body: body}}
-    end)
-    |> expect(:stream_body, fn %{body: ^body} = client ->
-      {:ok, body, Map.delete(client, :body)}
-    end)
-    |> expect(:stream_body, fn %{} -> :done end)
-
-    conn =
-      ReverseProxy.call(conn, "/extensionless",
-        sniff_content_type: true,
-        max_read_duration: :infinity,
-        req_headers: [{"accept-encoding", "gzip"}]
-      )
-
-    assert conn.resp_body == body
-    assert Conn.get_resp_header(conn, "content-type") == ["image/jpeg"]
-
-    assert Conn.get_resp_header(conn, "content-disposition") == [
-             "inline; filename=\"inline.jpg\""
-           ]
-  end
-
-  test "redirects a content sniffing failure before committing the response", %{conn: conn} do
-    url = "https://example.com/extensionless"
-
-    ClientMock
-    |> expect(:request, fn :get, ^url, _, _, _ ->
-      {:ok, 200, [{"content-type", "application/octet-stream"}], %{url: url}}
-    end)
-    |> expect(:stream_body, fn _ -> {:error, :closed} end)
-    |> expect(:close, fn _ -> :ok end)
-
-    conn =
-      ReverseProxy.call(conn, url,
-        sniff_content_type: true,
-        redirect_on_failure: true
-      )
-
-    assert conn.status == 302
-    assert Conn.get_resp_header(conn, "location") == [url]
-    assert conn.state == :sent
-    assert Cachex.get(:failed_proxy_url_cache, url) == {:ok, true}
-  end
-
   test "preserves a generic content type for a non-image body", %{conn: conn} do
     body = "not an image"
 
@@ -823,24 +773,6 @@ defmodule Pleroma.ReverseProxyTest do
       conn = ReverseProxy.call(conn, "/disposition")
 
       assert {"content-type", "image/gif"} in conn.resp_headers
-      assert {"content-disposition", "inline; filename=\"inline.gif\""} in conn.resp_headers
-    end
-
-    test "forces inline for inline content types overriding upstream attachment", %{
-      conn: conn
-    } do
-      disposition_headers_mock([
-        {"content-type", "image/png"},
-        {"content-disposition", "attachment; filename=\"filename.png\""},
-        {"content-disposition", "attachment; filename=\"duplicate.png\""},
-        {"content-length", "0"}
-      ])
-
-      conn = ReverseProxy.call(conn, "/disposition")
-
-      [disposition] = Conn.get_resp_header(conn, "content-disposition")
-      assert String.starts_with?(disposition, "inline")
-      refute String.starts_with?(disposition, "attachment")
     end
 
     test "with content-disposition header", %{conn: conn} do
@@ -853,50 +785,6 @@ defmodule Pleroma.ReverseProxyTest do
 
       assert {"content-disposition", "attachment; filename=\"filename.jpg\""} in conn.resp_headers
     end
-
-    test "with inline_content_types: true leaves upstream headers untouched", %{
-      conn: conn
-    } do
-      # opt == true: the proxy must not synthesise or rewrite content-disposition.
-      disposition_headers_mock([
-        {"content-type", "image/png"},
-        {"content-disposition", "attachment; filename=\"upstream.png\""},
-        {"content-length", "0"}
-      ])
-
-      conn = ReverseProxy.call(conn, "/disposition", inline_content_types: true)
-
-      assert {"content-disposition", "attachment; filename=\"upstream.png\""} in conn.resp_headers
-    end
-
-    test "forces bare inline for a whitelisted type with no MIME extension", %{
-      conn: conn
-    } do
-      # image/x-foo-bar has no entry in MIME's database, so inline_filename/1
-      # returns nil and the disposition should be the bare token "inline".
-      disposition_headers_mock([
-        {"content-type", "image/x-foo-bar"},
-        {"content-length", "0"}
-      ])
-
-      conn = ReverseProxy.call(conn, "/disposition", inline_content_types: ["image/x-foo-bar"])
-
-      [disposition] = Conn.get_resp_header(conn, "content-disposition")
-      assert disposition == "inline"
-    end
-
-    test "serves modern browser image types inline", %{conn: conn} do
-      disposition_headers_mock([
-        {"content-type", "image/webp"},
-        {"content-length", "0"}
-      ])
-
-      conn = ReverseProxy.call(conn, "/disposition")
-
-      assert Conn.get_resp_header(conn, "content-disposition") == [
-               "inline; filename=\"inline.webp\""
-             ]
-    end
   end
 
   describe "content-type sanitisation" do
diff --git a/test/pleroma/web/mastodon_api/views/notification_view_test.exs b/test/pleroma/web/mastodon_api/views/notification_view_test.exs
index 2d0801589..e6fb31e28 100644
--- a/test/pleroma/web/mastodon_api/views/notification_view_test.exs
+++ b/test/pleroma/web/mastodon_api/views/notification_view_test.exs
@@ -65,6 +65,15 @@ defmodule Pleroma.Web.MastodonAPI.NotificationViewTest do
     }
 
     test_notifications_rendering([notification], recipient, [expected])
+
+    grouped =
+      NotificationView.render("grouped_index.json", %{
+        notifications: [notification],
+        for: recipient
+      })
+
+    assert [group] = grouped.notification_groups
+    assert group.chat_message == expected.chat_message
   end
 
   test "Mention notification" do
@@ -182,6 +191,16 @@ defmodule Pleroma.Web.MastodonAPI.NotificationViewTest do
     }
 
     test_notifications_rendering([notification], follower, [expected])
+
+    grouped =
+      NotificationView.render("grouped_index.json", %{
+        notifications: [notification],
+        for: follower
+      })
+
+    assert [group] = grouped.notification_groups
+    assert group.target_id == new_user.id
+    assert Enum.any?(grouped.accounts, &(&1.id == new_user.id))
   end
 
   test "EmojiReact notification" do
@@ -210,6 +229,13 @@ defmodule Pleroma.Web.MastodonAPI.NotificationViewTest do
     }
 
     test_notifications_rendering([notification], user, [expected])
+
+    grouped =
+      NotificationView.render("grouped_index.json", %{notifications: [notification], for: user})
+
+    assert [group] = grouped.notification_groups
+    assert group.emoji == expected.emoji
+    assert group.emoji_url == expected.emoji_url
   end
 
   test "EmojiReact custom emoji notification" do
@@ -295,6 +321,15 @@ defmodule Pleroma.Web.MastodonAPI.NotificationViewTest do
     }
 
     test_notifications_rendering([notification], moderator_user, [expected])
+
+    grouped =
+      NotificationView.render("grouped_index.json", %{
+        notifications: [notification],
+        for: moderator_user
+      })
+
+    assert [group] = grouped.notification_groups
+    assert group.report == expected.report
   end
 
   test "Edit notification" do
diff --git a/test/pleroma/web/mastodon_api/views/status_view_test.exs b/test/pleroma/web/mastodon_api/views/status_view_test.exs
index 73adb196a..f7b815ed7 100644
--- a/test/pleroma/web/mastodon_api/views/status_view_test.exs
+++ b/test/pleroma/web/mastodon_api/views/status_view_test.exs
@@ -668,23 +668,6 @@ defmodule Pleroma.Web.MastodonAPI.StatusViewTest do
       assert expected == StatusView.render("attachment.json", %{attachment: object})
       assert_schema(expected, "Attachment", api_spec)
     end
-
-    test "uses the ActivityStreams image type when the MIME type is generic" do
-      object = %{
-        "type" => "Image",
-        "url" => [
-          %{
-            "mediaType" => "application/octet-stream",
-            "href" => "https://example.com/extensionless"
-          }
-        ]
-      }
-
-      attachment = StatusView.render("attachment.json", %{attachment: object})
-
-      assert attachment.type == "image"
-      assert attachment.pleroma.mime_type == "application/octet-stream"
-    end
   end
 
   test "put the url advertised in the Activity in to the url attribute" do
diff --git a/test/pleroma/web/media_proxy/media_proxy_controller_test.exs b/test/pleroma/web/media_proxy/media_proxy_controller_test.exs
index 800159c21..f7e52483c 100644
--- a/test/pleroma/web/media_proxy/media_proxy_controller_test.exs
+++ b/test/pleroma/web/media_proxy/media_proxy_controller_test.exs
@@ -71,10 +71,7 @@ defmodule Pleroma.Web.MediaProxy.MediaProxyControllerTest do
 
     test "it performs ReverseProxy.call with valid signature", %{conn: conn, url: url} do
       with_mock Pleroma.ReverseProxy,
-        call: fn _conn, _url, opts ->
-          assert opts[:sniff_content_type]
-          %Conn{status: :success}
-        end do
+        call: fn _conn, _url, _opts -> %Conn{status: :success} end do
         assert %Conn{status: :success} = get(conn, url)
       end
     end