diff --git a/CHANGELOG.md b/CHANGELOG.md
index d47e98cd4..90d10fdbc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -37,14 +37,17 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Rich Media: The crawled URL is now spliced into the rich media data.
 - ActivityPub S2S: sharedInbox usage has been mostly aligned with the rules in the AP specification.
 - ActivityPub S2S: remote user deletions now work the same as local user deletions.
+- ActivityPub S2S: POST requests are now signed with `(request-target)` pseudo-header.
 - Not being able to access the Mastodon FE login page on private instances
 - Invalid SemVer version generation, when the current branch does not have commits ahead of tag/checked out on a tag
 - Pleroma.Upload base_url was not automatically whitelisted by MediaProxy. Now your custom CDN or file hosting will be accessed directly as expected.
 - Report email not being sent to admins when the reporter is a remote user
 - MRF: ensure that subdomain_match calls are case-insensitive
 - Reverse Proxy limiting `max_body_length` was incorrectly defined and only checked `Content-Length` headers which may not be sufficient in some circumstances
+- MRF: fix use of unserializable keyword lists in describe() implementations
 
 ### Added
+- Conversations: Add Pleroma-specific conversation endpoints and status posting extensions. Run the `bump_all_conversations` task again to create the necessary data.
 - **Breaking:** MRF describe API, which adds support for exposing configuration information about MRF policies to NodeInfo.
   Custom modules will need to be updated by adding, at the very least, `def describe, do: {:ok, %{}}` to the MRF policy modules.
 - MRF: Support for priming the mediaproxy cache (`Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy`)
diff --git a/docs/api/differences_in_mastoapi_responses.md b/docs/api/differences_in_mastoapi_responses.md
index 1907d70c8..79ca531b8 100644
--- a/docs/api/differences_in_mastoapi_responses.md
+++ b/docs/api/differences_in_mastoapi_responses.md
@@ -59,12 +59,19 @@ Has these additional fields under the `pleroma` object:
 - `show_role`: boolean, nullable, true when the user wants his role (e.g admin, moderator) to be shown
 - `no_rich_text` - boolean, nullable, true when html tags are stripped from all statuses requested from the API
 
+## Conversations
+
+Has an additional field under the `pleroma` object:
+
+- `recipients`: The list of the recipients of this Conversation. These will be addressed when replying to this conversation.
+
 ## Account Search
 
 Behavior has changed:
 
 - `/api/v1/accounts/search`: Does not require authentication
 
+
 ## Notifications
 
 Has these additional fields under the `pleroma` object:
@@ -79,6 +86,7 @@ Additional parameters can be added to the JSON body/Form data:
 - `content_type`: string, contain the MIME type of the status, it is transformed into HTML by the backend. You can get the list of the supported MIME types with the nodeinfo endpoint.
 - `to`: A list of nicknames (like `lain@soykaf.club` or `lain` on the local server) that will be used to determine who is going to be addressed by this post. Using this will disable the implicit addressing by mentioned names in the `status` body, only the people in the `to` list will be addressed. The normal rules for for post visibility are not affected by this and will still apply.
 - `visibility`: string, besides standard MastoAPI values (`direct`, `private`, `unlisted` or `public`) it can be used to address a List by setting it to `list:LIST_ID`.
+- `in_reply_to_conversation_id`: Will reply to a given conversation, addressing only the people who are part of the recipient set of that conversation. Sets the visibility to `direct`.
 
 ## PATCH `/api/v1/update_credentials`
 
diff --git a/docs/api/pleroma_api.md b/docs/api/pleroma_api.md
index 5698e88ac..b134b31a8 100644
--- a/docs/api/pleroma_api.md
+++ b/docs/api/pleroma_api.md
@@ -319,3 +319,38 @@ See [Admin-API](Admin-API.md)
   "healthy": true # Instance state
 }
 ```
+
+# Pleroma Conversations
+
+Pleroma Conversations have the same general structure that Mastodon Conversations have. The behavior differs in the following ways when using these endpoints:
+
+1. Pleroma Conversations never add or remove recipients, unless explicitly changed by the user. 
+2. Pleroma Conversations statuses can be requested by Conversation id.
+3. Pleroma Conversations can be replied to.
+
+Conversations have the additional field "recipients" under the "pleroma" key. This holds a list of all the accounts that will receive a message in this conversation.
+
+The status posting endpoint takes an additional parameter, `in_reply_to_conversation_id`, which, when set, will set the visiblity to direct and address only the people who are the recipients of that Conversation.
+
+
+## `GET /api/v1/pleroma/conversations/:id/statuses`
+### Timeline for a given conversation
+* Method `GET`
+* Authentication: required
+* Params: Like other timelines
+* Response: JSON, statuses (200 - healthy, 503 unhealthy).
+
+## `GET /api/v1/pleroma/conversations/:id`
+### The conversation with the given ID.
+* Method `GET`
+* Authentication: required
+* Params: None
+* Response: JSON, statuses (200 - healthy, 503 unhealthy).
+
+## `PATCH /api/v1/pleroma/conversations/:id`
+### Update a conversation. Used to change the set of recipients.
+* Method `PATCH`
+* Authentication: required
+* Params:
+    * `recipients`: A list of ids of users that should receive posts to this conversation. This will replace the current list of recipients, so submit the full list. The owner of owner of the conversation will always be part of the set of recipients, though.
+* Response: JSON, statuses (200 - healthy, 503 unhealthy)
diff --git a/lib/mix/tasks/pleroma/benchmark.ex b/lib/mix/tasks/pleroma/benchmark.ex
index 5222cce80..4cc634727 100644
--- a/lib/mix/tasks/pleroma/benchmark.ex
+++ b/lib/mix/tasks/pleroma/benchmark.ex
@@ -26,4 +26,48 @@ def run(["tag"]) do
       end
     })
   end
+
+  def run(["render_timeline", nickname]) do
+    start_pleroma()
+    user = Pleroma.User.get_by_nickname(nickname)
+
+    activities =
+      %{}
+      |> Map.put("type", ["Create", "Announce"])
+      |> Map.put("blocking_user", user)
+      |> Map.put("muting_user", user)
+      |> Map.put("user", user)
+      |> Map.put("limit", 80)
+      |> Pleroma.Web.ActivityPub.ActivityPub.fetch_public_activities()
+      |> Enum.reverse()
+
+    inputs = %{
+      "One activity" => Enum.take_random(activities, 1),
+      "Ten activities" => Enum.take_random(activities, 10),
+      "Twenty activities" => Enum.take_random(activities, 20),
+      "Forty activities" => Enum.take_random(activities, 40),
+      "Eighty activities" => Enum.take_random(activities, 80)
+    }
+
+    Benchee.run(
+      %{
+        "Parallel rendering" => fn activities ->
+          Pleroma.Web.MastodonAPI.StatusView.render("index.json", %{
+            activities: activities,
+            for: user,
+            as: :activity
+          })
+        end,
+        "Standart rendering" => fn activities ->
+          Pleroma.Web.MastodonAPI.StatusView.render("index.json", %{
+            activities: activities,
+            for: user,
+            as: :activity,
+            parallel: false
+          })
+        end
+      },
+      inputs: inputs
+    )
+  end
 end
diff --git a/lib/mix/tasks/pleroma/relay.ex b/lib/mix/tasks/pleroma/relay.ex
index c7324fff6..a738fae75 100644
--- a/lib/mix/tasks/pleroma/relay.ex
+++ b/lib/mix/tasks/pleroma/relay.ex
@@ -53,13 +53,11 @@ def run(["unfollow", target]) do
   def run(["list"]) do
     start_pleroma()
 
-    with %User{} = user <- Relay.get_actor() do
-      user.following
-      |> Enum.each(fn entry ->
-        URI.parse(entry)
-        |> Map.get(:host)
-        |> shell_info()
-      end)
+    with %User{following: following} = _user <- Relay.get_actor() do
+      following
+      |> Enum.map(fn entry -> URI.parse(entry).host end)
+      |> Enum.uniq()
+      |> Enum.each(&shell_info(&1))
     else
       e -> shell_error("Error while fetching relay subscription list: #{inspect(e)}")
     end
diff --git a/lib/pleroma/activity.ex b/lib/pleroma/activity.ex
index baf1e7722..35612c882 100644
--- a/lib/pleroma/activity.ex
+++ b/lib/pleroma/activity.ex
@@ -96,6 +96,7 @@ def with_set_thread_muted_field(query, %User{} = user) do
     from([a] in query,
       left_join: tm in ThreadMute,
       on: tm.user_id == ^user.id and tm.context == fragment("?->>'context'", a.data),
+      as: :thread_mute,
       select: %Activity{a | thread_muted?: not is_nil(tm.id)}
     )
   end
diff --git a/lib/pleroma/application.ex b/lib/pleroma/application.ex
index 00b06f723..25e56b9e2 100644
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@@ -3,11 +3,14 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Application do
+  import Cachex.Spec
   use Application
 
   @name Mix.Project.config()[:name]
   @version Mix.Project.config()[:version]
   @repository Mix.Project.config()[:source_url]
+  @env Mix.env()
+
   def name, do: @name
   def version, do: @version
   def named_version, do: @name <> " " <> @version
@@ -21,116 +24,24 @@ def user_agent do
   # See http://elixir-lang.org/docs/stable/elixir/Application.html
   # for more information on OTP Applications
   def start(_type, _args) do
-    import Cachex.Spec
-
     Pleroma.Config.DeprecationWarnings.warn()
     setup_instrumenters()
 
     # Define workers and child supervisors to be supervised
     children =
       [
-        # Start the Ecto repository
-        %{id: Pleroma.Repo, start: {Pleroma.Repo, :start_link, []}, type: :supervisor},
-        %{id: Pleroma.Config.TransferTask, start: {Pleroma.Config.TransferTask, :start_link, []}},
-        %{id: Pleroma.Emoji, start: {Pleroma.Emoji, :start_link, []}},
-        %{id: Pleroma.Captcha, start: {Pleroma.Captcha, :start_link, []}},
-        %{
-          id: :cachex_used_captcha_cache,
-          start:
-            {Cachex, :start_link,
-             [
-               :used_captcha_cache,
-               [
-                 ttl_interval:
-                   :timer.seconds(Pleroma.Config.get!([Pleroma.Captcha, :seconds_valid]))
-               ]
-             ]}
-        },
-        %{
-          id: :cachex_user,
-          start:
-            {Cachex, :start_link,
-             [
-               :user_cache,
-               [
-                 default_ttl: 25_000,
-                 ttl_interval: 1000,
-                 limit: 2500
-               ]
-             ]}
-        },
-        %{
-          id: :cachex_object,
-          start:
-            {Cachex, :start_link,
-             [
-               :object_cache,
-               [
-                 default_ttl: 25_000,
-                 ttl_interval: 1000,
-                 limit: 2500
-               ]
-             ]}
-        },
-        %{
-          id: :cachex_rich_media,
-          start:
-            {Cachex, :start_link,
-             [
-               :rich_media_cache,
-               [
-                 default_ttl: :timer.minutes(120),
-                 limit: 5000
-               ]
-             ]}
-        },
-        %{
-          id: :cachex_scrubber,
-          start:
-            {Cachex, :start_link,
-             [
-               :scrubber_cache,
-               [
-                 limit: 2500
-               ]
-             ]}
-        },
-        %{
-          id: :cachex_idem,
-          start:
-            {Cachex, :start_link,
-             [
-               :idempotency_cache,
-               [
-                 expiration:
-                   expiration(
-                     default: :timer.seconds(6 * 60 * 60),
-                     interval: :timer.seconds(60)
-                   ),
-                 limit: 2500
-               ]
-             ]}
-        },
-        %{id: Pleroma.FlakeId, start: {Pleroma.FlakeId, :start_link, []}},
-        %{
-          id: Pleroma.ScheduledActivityWorker,
-          start: {Pleroma.ScheduledActivityWorker, :start_link, []}
-        }
+        Pleroma.Repo,
+        Pleroma.Config.TransferTask,
+        Pleroma.Emoji,
+        Pleroma.Captcha,
+        Pleroma.FlakeId,
+        Pleroma.ScheduledActivityWorker
       ] ++
+        cachex_children() ++
         hackney_pool_children() ++
         [
-          %{
-            id: Pleroma.Web.Federator.RetryQueue,
-            start: {Pleroma.Web.Federator.RetryQueue, :start_link, []}
-          },
-          %{
-            id: Pleroma.Web.OAuth.Token.CleanWorker,
-            start: {Pleroma.Web.OAuth.Token.CleanWorker, :start_link, []}
-          },
-          %{
-            id: Pleroma.Stats,
-            start: {Pleroma.Stats, :start_link, []}
-          },
+          Pleroma.Web.Federator.RetryQueue,
+          Pleroma.Stats,
           %{
             id: :web_push_init,
             start: {Task, :start_link, [&Pleroma.Web.Push.init/0]},
@@ -147,16 +58,12 @@ def start(_type, _args) do
             restart: :temporary
           }
         ] ++
-        streamer_child() ++
-        chat_child() ++
+        oauth_cleanup_child(oauth_cleanup_enabled?()) ++
+        streamer_child(@env) ++
+        chat_child(@env, chat_enabled?()) ++
         [
-          # Start the endpoint when the application starts
-          %{
-            id: Pleroma.Web.Endpoint,
-            start: {Pleroma.Web.Endpoint, :start_link, []},
-            type: :supervisor
-          },
-          %{id: Pleroma.Gopher.Server, start: {Pleroma.Gopher.Server, :start_link, []}}
+          Pleroma.Web.Endpoint,
+          Pleroma.Gopher.Server
         ]
 
     # See http://elixir-lang.org/docs/stable/elixir/Supervisor.html
@@ -201,28 +108,54 @@ def enabled_hackney_pools do
       end
   end
 
-  if Pleroma.Config.get(:env) == :test do
-    defp streamer_child, do: []
-    defp chat_child, do: []
-  else
-    defp streamer_child do
-      [%{id: Pleroma.Web.Streamer, start: {Pleroma.Web.Streamer, :start_link, []}}]
-    end
-
-    defp chat_child do
-      if Pleroma.Config.get([:chat, :enabled]) do
-        [
-          %{
-            id: Pleroma.Web.ChatChannel.ChatChannelState,
-            start: {Pleroma.Web.ChatChannel.ChatChannelState, :start_link, []}
-          }
-        ]
-      else
-        []
-      end
-    end
+  defp cachex_children do
+    [
+      build_cachex("used_captcha", ttl_interval: seconds_valid_interval()),
+      build_cachex("user", default_ttl: 25_000, ttl_interval: 1000, limit: 2500),
+      build_cachex("object", default_ttl: 25_000, ttl_interval: 1000, limit: 2500),
+      build_cachex("rich_media", default_ttl: :timer.minutes(120), limit: 5000),
+      build_cachex("scrubber", limit: 2500),
+      build_cachex("idempotency", expiration: idempotency_expiration(), limit: 2500)
+    ]
   end
 
+  defp idempotency_expiration,
+    do: expiration(default: :timer.seconds(6 * 60 * 60), interval: :timer.seconds(60))
+
+  defp seconds_valid_interval,
+    do: :timer.seconds(Pleroma.Config.get!([Pleroma.Captcha, :seconds_valid]))
+
+  defp build_cachex(type, opts),
+    do: %{
+      id: String.to_atom("cachex_" <> type),
+      start: {Cachex, :start_link, [String.to_atom(type <> "_cache"), opts]},
+      type: :worker
+    }
+
+  defp chat_enabled?, do: Pleroma.Config.get([:chat, :enabled])
+
+  defp oauth_cleanup_enabled?,
+    do: Pleroma.Config.get([:oauth2, :clean_expired_tokens], false)
+
+  defp streamer_child(:test), do: []
+
+  defp streamer_child(_) do
+    [Pleroma.Web.Streamer]
+  end
+
+  defp oauth_cleanup_child(true),
+    do: [Pleroma.Web.OAuth.Token.CleanWorker]
+
+  defp oauth_cleanup_child(_), do: []
+
+  defp chat_child(:test, _), do: []
+
+  defp chat_child(_env, true) do
+    [Pleroma.Web.ChatChannel.ChatChannelState]
+  end
+
+  defp chat_child(_, _), do: []
+
   defp hackney_pool_children do
     for pool <- enabled_hackney_pools() do
       options = Pleroma.Config.get([:hackney_pools, pool])
diff --git a/lib/pleroma/captcha/captcha.ex b/lib/pleroma/captcha/captcha.ex
index a73b87251..c2765a5b8 100644
--- a/lib/pleroma/captcha/captcha.ex
+++ b/lib/pleroma/captcha/captcha.ex
@@ -12,7 +12,7 @@ defmodule Pleroma.Captcha do
   use GenServer
 
   @doc false
-  def start_link do
+  def start_link(_) do
     GenServer.start_link(__MODULE__, [], name: __MODULE__)
   end
 
diff --git a/lib/pleroma/config/transfer_task.ex b/lib/pleroma/config/transfer_task.ex
index 7799b2a78..3214c9951 100644
--- a/lib/pleroma/config/transfer_task.ex
+++ b/lib/pleroma/config/transfer_task.ex
@@ -6,7 +6,7 @@ defmodule Pleroma.Config.TransferTask do
   use Task
   alias Pleroma.Web.AdminAPI.Config
 
-  def start_link do
+  def start_link(_) do
     load_and_update_env()
     if Pleroma.Config.get(:env) == :test, do: Ecto.Adapters.SQL.Sandbox.checkin(Pleroma.Repo)
     :ignore
diff --git a/lib/pleroma/conversation.ex b/lib/pleroma/conversation.ex
index bc97b39ca..be5821ad7 100644
--- a/lib/pleroma/conversation.ex
+++ b/lib/pleroma/conversation.ex
@@ -4,6 +4,7 @@
 
 defmodule Pleroma.Conversation do
   alias Pleroma.Conversation.Participation
+  alias Pleroma.Conversation.Participation.RecipientShip
   alias Pleroma.Repo
   alias Pleroma.User
   use Ecto.Schema
@@ -39,6 +40,15 @@ def get_for_ap_id(ap_id) do
     Repo.get_by(__MODULE__, ap_id: ap_id)
   end
 
+  def maybe_create_recipientships(participation, activity) do
+    participation = Repo.preload(participation, :recipients)
+
+    if participation.recipients |> Enum.empty?() do
+      recipients = User.get_all_by_ap_id(activity.recipients)
+      RecipientShip.create(recipients, participation)
+    end
+  end
+
   @doc """
   This will
   1. Create a conversation if there isn't one already
@@ -60,6 +70,7 @@ def create_or_bump_for(activity, opts \\ []) do
           {:ok, participation} =
             Participation.create_for_user_and_conversation(user, conversation, opts)
 
+          maybe_create_recipientships(participation, activity)
           participation
         end)
 
diff --git a/lib/pleroma/conversation/participation.ex b/lib/pleroma/conversation/participation.ex
index 5883e4183..ea5b9fe17 100644
--- a/lib/pleroma/conversation/participation.ex
+++ b/lib/pleroma/conversation/participation.ex
@@ -5,6 +5,7 @@
 defmodule Pleroma.Conversation.Participation do
   use Ecto.Schema
   alias Pleroma.Conversation
+  alias Pleroma.Conversation.Participation.RecipientShip
   alias Pleroma.Repo
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
@@ -17,6 +18,9 @@ defmodule Pleroma.Conversation.Participation do
     field(:read, :boolean, default: false)
     field(:last_activity_id, Pleroma.FlakeId, virtual: true)
 
+    has_many(:recipient_ships, RecipientShip)
+    has_many(:recipients, through: [:recipient_ships, :user])
+
     timestamps()
   end
 
@@ -65,6 +69,14 @@ def for_user(user, params \\ %{}) do
     |> Pleroma.Pagination.fetch_paginated(params)
   end
 
+  def for_user_and_conversation(user, conversation) do
+    from(p in __MODULE__,
+      where: p.user_id == ^user.id,
+      where: p.conversation_id == ^conversation.id
+    )
+    |> Repo.one()
+  end
+
   def for_user_with_last_activity_id(user, params \\ %{}) do
     for_user(user, params)
     |> Enum.map(fn participation ->
@@ -81,4 +93,46 @@ def for_user_with_last_activity_id(user, params \\ %{}) do
     end)
     |> Enum.filter(& &1.last_activity_id)
   end
+
+  def get(_, _ \\ [])
+  def get(nil, _), do: nil
+
+  def get(id, params) do
+    query =
+      if preload = params[:preload] do
+        from(p in __MODULE__,
+          preload: ^preload
+        )
+      else
+        __MODULE__
+      end
+
+    Repo.get(query, id)
+  end
+
+  def set_recipients(participation, user_ids) do
+    user_ids =
+      [participation.user_id | user_ids]
+      |> Enum.uniq()
+
+    Repo.transaction(fn ->
+      query =
+        from(r in RecipientShip,
+          where: r.participation_id == ^participation.id
+        )
+
+      Repo.delete_all(query)
+
+      users =
+        from(u in User,
+          where: u.id in ^user_ids
+        )
+        |> Repo.all()
+
+      RecipientShip.create(users, participation)
+      :ok
+    end)
+
+    {:ok, Repo.preload(participation, :recipients, force: true)}
+  end
 end
diff --git a/lib/pleroma/conversation/participation_recipient_ship.ex b/lib/pleroma/conversation/participation_recipient_ship.ex
new file mode 100644
index 000000000..932cbd04c
--- /dev/null
+++ b/lib/pleroma/conversation/participation_recipient_ship.ex
@@ -0,0 +1,34 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Conversation.Participation.RecipientShip do
+  use Ecto.Schema
+
+  alias Pleroma.Conversation.Participation
+  alias Pleroma.Repo
+  alias Pleroma.User
+
+  import Ecto.Changeset
+
+  schema "conversation_participation_recipient_ships" do
+    belongs_to(:user, User, type: Pleroma.FlakeId)
+    belongs_to(:participation, Participation)
+  end
+
+  def creation_cng(struct, params) do
+    struct
+    |> cast(params, [:user_id, :participation_id])
+    |> validate_required([:user_id, :participation_id])
+  end
+
+  def create(%User{} = user, participation), do: create([user], participation)
+
+  def create(users, participation) do
+    Enum.each(users, fn user ->
+      %__MODULE__{}
+      |> creation_cng(%{user_id: user.id, participation_id: participation.id})
+      |> Repo.insert!()
+    end)
+  end
+end
diff --git a/lib/pleroma/digest_email_worker.ex b/lib/pleroma/digest_email_worker.ex
index 18e67d39b..5644d6a67 100644
--- a/lib/pleroma/digest_email_worker.ex
+++ b/lib/pleroma/digest_email_worker.ex
@@ -1,3 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.DigestEmailWorker do
   import Ecto.Query
 
diff --git a/lib/pleroma/emoji.ex b/lib/pleroma/emoji.ex
index 052501642..66e20f0e4 100644
--- a/lib/pleroma/emoji.ex
+++ b/lib/pleroma/emoji.ex
@@ -24,7 +24,7 @@ defmodule Pleroma.Emoji do
   @ets_options [:ordered_set, :protected, :named_table, {:read_concurrency, true}]
 
   @doc false
-  def start_link do
+  def start_link(_) do
     GenServer.start_link(__MODULE__, [], name: __MODULE__)
   end
 
diff --git a/lib/pleroma/flake_id.ex b/lib/pleroma/flake_id.ex
index ca0610abc..47d61ca5f 100644
--- a/lib/pleroma/flake_id.ex
+++ b/lib/pleroma/flake_id.ex
@@ -98,7 +98,7 @@ def dump(value) do
   def autogenerate, do: get()
 
   # -- GenServer API
-  def start_link do
+  def start_link(_) do
     :gen_server.start_link({:local, :flake}, __MODULE__, [], [])
   end
 
diff --git a/lib/pleroma/gopher/server.ex b/lib/pleroma/gopher/server.ex
index b3319e137..d4e4f3e55 100644
--- a/lib/pleroma/gopher/server.ex
+++ b/lib/pleroma/gopher/server.ex
@@ -6,7 +6,7 @@ defmodule Pleroma.Gopher.Server do
   use GenServer
   require Logger
 
-  def start_link do
+  def start_link(_) do
     config = Pleroma.Config.get(:gopher, [])
     ip = Keyword.get(config, :ip, {0, 0, 0, 0})
     port = Keyword.get(config, :port, 1234)
diff --git a/lib/pleroma/html.ex b/lib/pleroma/html.ex
index 2fae7281c..06e60cba3 100644
--- a/lib/pleroma/html.ex
+++ b/lib/pleroma/html.ex
@@ -203,6 +203,8 @@ defmodule Pleroma.HTML.Scrubber.Default do
   Meta.allow_tag_with_these_attributes("p", [])
   Meta.allow_tag_with_these_attributes("pre", [])
   Meta.allow_tag_with_these_attributes("strong", [])
+  Meta.allow_tag_with_these_attributes("sub", [])
+  Meta.allow_tag_with_these_attributes("sup", [])
   Meta.allow_tag_with_these_attributes("u", [])
   Meta.allow_tag_with_these_attributes("ul", [])
 
diff --git a/lib/pleroma/scheduled_activity_worker.ex b/lib/pleroma/scheduled_activity_worker.ex
index 65b38622f..8578cab5e 100644
--- a/lib/pleroma/scheduled_activity_worker.ex
+++ b/lib/pleroma/scheduled_activity_worker.ex
@@ -16,7 +16,7 @@ defmodule Pleroma.ScheduledActivityWorker do
 
   @schedule_interval :timer.minutes(1)
 
-  def start_link do
+  def start_link(_) do
     GenServer.start_link(__MODULE__, nil)
   end
 
diff --git a/lib/pleroma/stats.ex b/lib/pleroma/stats.ex
index 5b242927b..df80fbaa4 100644
--- a/lib/pleroma/stats.ex
+++ b/lib/pleroma/stats.ex
@@ -7,31 +7,56 @@ defmodule Pleroma.Stats do
   alias Pleroma.Repo
   alias Pleroma.User
 
-  def start_link do
-    agent = Agent.start_link(fn -> {[], %{}} end, name: __MODULE__)
-    spawn(fn -> schedule_update() end)
-    agent
+  use GenServer
+
+  @interval 1000 * 60 * 60
+
+  def start_link(_) do
+    GenServer.start_link(__MODULE__, initial_data(), name: __MODULE__)
+  end
+
+  def force_update do
+    GenServer.call(__MODULE__, :force_update)
   end
 
   def get_stats do
-    Agent.get(__MODULE__, fn {_, stats} -> stats end)
+    %{stats: stats} = GenServer.call(__MODULE__, :get_state)
+
+    stats
   end
 
   def get_peers do
-    Agent.get(__MODULE__, fn {peers, _} -> peers end)
+    %{peers: peers} = GenServer.call(__MODULE__, :get_state)
+
+    peers
   end
 
-  def schedule_update do
-    spawn(fn ->
-      # 1 hour
-      Process.sleep(1000 * 60 * 60)
-      schedule_update()
-    end)
-
-    update_stats()
+  def init(args) do
+    Process.send(self(), :run_update, [])
+    {:ok, args}
   end
 
-  def update_stats do
+  def handle_call(:force_update, _from, _state) do
+    new_stats = get_stat_data()
+    {:reply, new_stats, new_stats}
+  end
+
+  def handle_call(:get_state, _from, state) do
+    {:reply, state, state}
+  end
+
+  def handle_info(:run_update, _state) do
+    new_stats = get_stat_data()
+
+    Process.send_after(self(), :run_update, @interval)
+    {:noreply, new_stats}
+  end
+
+  defp initial_data do
+    %{peers: [], stats: %{}}
+  end
+
+  defp get_stat_data do
     peers =
       from(
         u in User,
@@ -52,8 +77,9 @@ def update_stats do
 
     user_count = Repo.aggregate(User.Query.build(%{local: true, active: true}), :count, :id)
 
-    Agent.update(__MODULE__, fn _ ->
-      {peers, %{domain_count: domain_count, status_count: status_count, user_count: user_count}}
-    end)
+    %{
+      peers: peers,
+      stats: %{domain_count: domain_count, status_count: status_count, user_count: user_count}
+    }
   end
 end
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index b67743846..02011f4e6 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -21,6 +21,7 @@ defmodule Pleroma.User do
   alias Pleroma.Web
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Utils
+  alias Pleroma.Web.CommonAPI
   alias Pleroma.Web.CommonAPI.Utils, as: CommonUtils
   alias Pleroma.Web.OAuth
   alias Pleroma.Web.OStatus
@@ -132,6 +133,28 @@ def user_info(%User{} = user, args \\ %{}) do
     |> Map.put(:follower_count, follower_count)
   end
 
+  def follow_state(%User{} = user, %User{} = target) do
+    follow_activity = Utils.fetch_latest_follow(user, target)
+
+    if follow_activity,
+      do: follow_activity.data["state"],
+      # Ideally this would be nil, but then Cachex does not commit the value
+      else: false
+  end
+
+  def get_cached_follow_state(user, target) do
+    key = "follow_state:#{user.ap_id}|#{target.ap_id}"
+    Cachex.fetch!(:user_cache, key, fn _ -> {:commit, follow_state(user, target)} end)
+  end
+
+  def set_follow_state_cache(user_ap_id, target_ap_id, state) do
+    Cachex.put(
+      :user_cache,
+      "follow_state:#{user_ap_id}|#{target_ap_id}",
+      state
+    )
+  end
+
   def set_info_cache(user, args) do
     Cachex.put(:user_cache, "user_info:#{user.id}", user_info(user, args))
   end
@@ -463,6 +486,13 @@ def get_by_ap_id(ap_id) do
     Repo.get_by(User, ap_id: ap_id)
   end
 
+  def get_all_by_ap_id(ap_ids) do
+    from(u in __MODULE__,
+      where: u.ap_id in ^ap_ids
+    )
+    |> Repo.all()
+  end
+
   # This is mostly an SPC migration fix. This guesses the user nickname by taking the last part
   # of the ap_id and the domain and tries to get that user
   def get_by_guessed_nickname(ap_id) do
@@ -720,6 +750,7 @@ def update_note_count(%User{} = user) do
     |> update_and_set_cache()
   end
 
+  @spec maybe_fetch_follow_information(User.t()) :: User.t()
   def maybe_fetch_follow_information(user) do
     with {:ok, user} <- fetch_follow_information(user) do
       user
@@ -777,9 +808,10 @@ def update_follower_count(%User{} = user) do
     end
   end
 
+  @spec maybe_update_following_count(User.t()) :: User.t()
   def maybe_update_following_count(%User{local: false} = user) do
     if Pleroma.Config.get([:instance, :external_user_synchronization]) do
-      {:ok, maybe_fetch_follow_information(user)}
+      maybe_fetch_follow_information(user)
     else
       user
     end
@@ -885,6 +917,13 @@ def block(blocker, %User{ap_id: ap_id} = blocked) do
         blocker
       end
 
+    # clear any requested follows as well
+    blocked =
+      case CommonAPI.reject_follow_request(blocked, blocker) do
+        {:ok, %User{} = updated_blocked} -> updated_blocked
+        nil -> blocked
+      end
+
     blocker =
       if subscribed_to?(blocked, blocker) do
         {:ok, blocker} = unsubscribe(blocked, blocker)
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index cf55c9520..1a8e3ad96 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -388,7 +388,8 @@ def unannounce(
   def follow(follower, followed, activity_id \\ nil, local \\ true) do
     with data <- make_follow_data(follower, followed, activity_id),
          {:ok, activity} <- insert(data, local),
-         :ok <- maybe_federate(activity) do
+         :ok <- maybe_federate(activity),
+         _ <- User.set_follow_state_cache(follower.ap_id, followed.ap_id, activity.data["state"]) do
       {:ok, activity}
     end
   end
@@ -790,14 +791,20 @@ defp restrict_reblogs(query, _), do: query
 
   defp restrict_muted(query, %{"with_muted" => val}) when val in [true, "true", "1"], do: query
 
-  defp restrict_muted(query, %{"muting_user" => %User{info: info}}) do
+  defp restrict_muted(query, %{"muting_user" => %User{info: info}} = opts) do
     mutes = info.mutes
 
-    from(
-      activity in query,
-      where: fragment("not (? = ANY(?))", activity.actor, ^mutes),
-      where: fragment("not (?->'to' \\?| ?)", activity.data, ^mutes)
-    )
+    query =
+      from([activity] in query,
+        where: fragment("not (? = ANY(?))", activity.actor, ^mutes),
+        where: fragment("not (?->'to' \\?| ?)", activity.data, ^mutes)
+      )
+
+    unless opts["skip_preload"] do
+      from([thread_mute: tm] in query, where: is_nil(tm))
+    else
+      query
+    end
   end
 
   defp restrict_muted(query, _), do: query
@@ -898,7 +905,7 @@ defp maybe_set_thread_muted_field(query, %{"skip_preload" => true}), do: query
 
   defp maybe_set_thread_muted_field(query, opts) do
     query
-    |> Activity.with_set_thread_muted_field(opts["user"])
+    |> Activity.with_set_thread_muted_field(opts["muting_user"] || opts["user"])
   end
 
   defp maybe_order(query, %{order: :desc}) do
diff --git a/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex b/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
index 9863454fa..b3c742954 100644
--- a/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
@@ -92,5 +92,6 @@ def filter(%{"type" => "Create"} = message) do
   def filter(message), do: {:ok, message}
 
   @impl true
-  def describe, do: {:ok, %{mrf_hellthread: Pleroma.Config.get([:mrf_hellthread])}}
+  def describe,
+    do: {:ok, %{mrf_hellthread: Pleroma.Config.get(:mrf_hellthread) |> Enum.into(%{})}}
 end
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 0ae9397ed..5a809a321 100644
--- a/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
+++ b/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
@@ -46,5 +46,6 @@ def filter(%{"type" => "Create"} = object) do
   def filter(object), do: {:ok, object}
 
   @impl true
-  def describe, do: {:ok, %{mrf_rejectnonpublic: Pleroma.Config.get([:mrf_rejectnonpublic])}}
+  def describe,
+    do: {:ok, %{mrf_rejectnonpublic: Pleroma.Config.get(:mrf_rejectnonpublic) |> Enum.into(%{})}}
 end
diff --git a/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex b/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
index 74da8d57e..4eaea00d8 100644
--- a/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
@@ -32,5 +32,6 @@ def filter(%{"type" => message_type} = message) do
 
   def filter(message), do: {:ok, message}
 
-  def describe, do: {:ok, %{mrf_vocabulary: Pleroma.Config.get(:mrf_vocabulary)}}
+  def describe,
+    do: {:ok, %{mrf_vocabulary: Pleroma.Config.get(:mrf_vocabulary) |> Enum.into(%{})}}
 end
diff --git a/lib/pleroma/web/activity_pub/publisher.ex b/lib/pleroma/web/activity_pub/publisher.ex
index 46edab0bd..262529b84 100644
--- a/lib/pleroma/web/activity_pub/publisher.ex
+++ b/lib/pleroma/web/activity_pub/publisher.ex
@@ -46,7 +46,7 @@ def is_representable?(%Activity{} = activity) do
   """
   def publish_one(%{inbox: inbox, json: json, actor: %User{} = actor, id: id} = params) do
     Logger.info("Federating #{id} to #{inbox}")
-    host = URI.parse(inbox).host
+    %{host: host, path: path} = URI.parse(inbox)
 
     digest = "SHA-256=" <> (:crypto.hash(:sha256, json) |> Base.encode64())
 
@@ -56,6 +56,7 @@ def publish_one(%{inbox: inbox, json: json, actor: %User{} = actor, id: id} = pa
 
     signature =
       Pleroma.Signature.sign(actor, %{
+        "(request-target)": "post #{path}",
         host: host,
         "content-length": byte_size(json),
         digest: digest,
diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex
index fc5305c58..1c3058658 100644
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@@ -374,6 +374,7 @@ def update_follow_state_for_all(
         [state, actor, object]
       )
 
+      User.set_follow_state_cache(actor, object, state)
       activity = Activity.get_by_id(activity.id)
       {:ok, activity}
     rescue
@@ -382,12 +383,16 @@ def update_follow_state_for_all(
     end
   end
 
-  def update_follow_state(%Activity{} = activity, state) do
+  def update_follow_state(
+        %Activity{data: %{"actor" => actor, "object" => object}} = activity,
+        state
+      ) do
     with new_data <-
            activity.data
            |> Map.put("state", state),
          changeset <- Changeset.change(activity, data: new_data),
-         {:ok, activity} <- Repo.update(changeset) do
+         {:ok, activity} <- Repo.update(changeset),
+         _ <- User.set_follow_state_cache(actor, object, state) do
       {:ok, activity}
     end
   end
diff --git a/lib/pleroma/web/chat_channel.ex b/lib/pleroma/web/chat_channel.ex
index f63f4bda1..b543909f1 100644
--- a/lib/pleroma/web/chat_channel.ex
+++ b/lib/pleroma/web/chat_channel.ex
@@ -33,9 +33,11 @@ def handle_in("new_msg", %{"text" => text}, %{assigns: %{user_name: user_name}}
 end
 
 defmodule Pleroma.Web.ChatChannel.ChatChannelState do
+  use Agent
+
   @max_messages 20
 
-  def start_link do
+  def start_link(_) do
     Agent.start_link(fn -> %{max_id: 1, messages: []} end, name: __MODULE__)
   end
 
diff --git a/lib/pleroma/web/common_api/common_api.ex b/lib/pleroma/web/common_api/common_api.ex
index 2db58324b..72da46263 100644
--- a/lib/pleroma/web/common_api/common_api.ex
+++ b/lib/pleroma/web/common_api/common_api.ex
@@ -4,6 +4,7 @@
 
 defmodule Pleroma.Web.CommonAPI do
   alias Pleroma.Activity
+  alias Pleroma.Conversation.Participation
   alias Pleroma.Formatter
   alias Pleroma.Object
   alias Pleroma.ThreadMute
@@ -171,21 +172,25 @@ defp normalize_and_validate_choice_indices(choices, count) do
     end)
   end
 
-  def get_visibility(%{"visibility" => visibility}, in_reply_to)
+  def get_visibility(_, _, %Participation{}) do
+    {"direct", "direct"}
+  end
+
+  def get_visibility(%{"visibility" => visibility}, in_reply_to, _)
       when visibility in ~w{public unlisted private direct},
       do: {visibility, get_replied_to_visibility(in_reply_to)}
 
-  def get_visibility(%{"visibility" => "list:" <> list_id}, in_reply_to) do
+  def get_visibility(%{"visibility" => "list:" <> list_id}, in_reply_to, _) do
     visibility = {:list, String.to_integer(list_id)}
     {visibility, get_replied_to_visibility(in_reply_to)}
   end
 
-  def get_visibility(_, in_reply_to) when not is_nil(in_reply_to) do
+  def get_visibility(_, in_reply_to, _) when not is_nil(in_reply_to) do
     visibility = get_replied_to_visibility(in_reply_to)
     {visibility, visibility}
   end
 
-  def get_visibility(_, in_reply_to), do: {"public", get_replied_to_visibility(in_reply_to)}
+  def get_visibility(_, in_reply_to, _), do: {"public", get_replied_to_visibility(in_reply_to)}
 
   def get_replied_to_visibility(nil), do: nil
 
@@ -201,7 +206,9 @@ def post(user, %{"status" => status} = data) do
     with status <- String.trim(status),
          attachments <- attachments_from_ids(data),
          in_reply_to <- get_replied_to_activity(data["in_reply_to_status_id"]),
-         {visibility, in_reply_to_visibility} <- get_visibility(data, in_reply_to),
+         in_reply_to_conversation <- Participation.get(data["in_reply_to_conversation_id"]),
+         {visibility, in_reply_to_visibility} <-
+           get_visibility(data, in_reply_to, in_reply_to_conversation),
          {_, false} <-
            {:private_to_public, in_reply_to_visibility == "direct" && visibility != "direct"},
          {content_html, mentions, tags} <-
@@ -214,8 +221,9 @@ def post(user, %{"status" => status} = data) do
          mentioned_users <- for({_, mentioned_user} <- mentions, do: mentioned_user.ap_id),
          addressed_users <- get_addressed_users(mentioned_users, data["to"]),
          {poll, poll_emoji} <- make_poll_data(data),
-         {to, cc} <- get_to_and_cc(user, addressed_users, in_reply_to, visibility),
-         context <- make_context(in_reply_to),
+         {to, cc} <-
+           get_to_and_cc(user, addressed_users, in_reply_to, visibility, in_reply_to_conversation),
+         context <- make_context(in_reply_to, in_reply_to_conversation),
          cw <- data["spoiler_text"] || "",
          sensitive <- data["sensitive"] || Enum.member?(tags, {"#nsfw", "nsfw"}),
          full_payload <- String.trim(status <> cw),
diff --git a/lib/pleroma/web/common_api/utils.ex b/lib/pleroma/web/common_api/utils.ex
index 22c44a0a3..61b96aba9 100644
--- a/lib/pleroma/web/common_api/utils.ex
+++ b/lib/pleroma/web/common_api/utils.ex
@@ -8,6 +8,7 @@ defmodule Pleroma.Web.CommonAPI.Utils do
   alias Calendar.Strftime
   alias Pleroma.Activity
   alias Pleroma.Config
+  alias Pleroma.Conversation.Participation
   alias Pleroma.Formatter
   alias Pleroma.Object
   alias Pleroma.Plugs.AuthenticationPlug
@@ -86,9 +87,21 @@ def attachments_from_ids_descs(ids, descs_str) do
     |> Enum.filter(& &1)
   end
 
-  @spec get_to_and_cc(User.t(), list(String.t()), Activity.t() | nil, String.t()) ::
+  @spec get_to_and_cc(
+          User.t(),
+          list(String.t()),
+          Activity.t() | nil,
+          String.t(),
+          Participation.t() | nil
+        ) ::
           {list(String.t()), list(String.t())}
-  def get_to_and_cc(user, mentioned_users, inReplyTo, "public") do
+
+  def get_to_and_cc(_, _, _, _, %Participation{} = participation) do
+    participation = Repo.preload(participation, :recipients)
+    {Enum.map(participation.recipients, & &1.ap_id), []}
+  end
+
+  def get_to_and_cc(user, mentioned_users, inReplyTo, "public", _) do
     to = [Pleroma.Constants.as_public() | mentioned_users]
     cc = [user.follower_address]
 
@@ -99,7 +112,7 @@ def get_to_and_cc(user, mentioned_users, inReplyTo, "public") do
     end
   end
 
-  def get_to_and_cc(user, mentioned_users, inReplyTo, "unlisted") do
+  def get_to_and_cc(user, mentioned_users, inReplyTo, "unlisted", _) do
     to = [user.follower_address | mentioned_users]
     cc = [Pleroma.Constants.as_public()]
 
@@ -110,12 +123,12 @@ def get_to_and_cc(user, mentioned_users, inReplyTo, "unlisted") do
     end
   end
 
-  def get_to_and_cc(user, mentioned_users, inReplyTo, "private") do
-    {to, cc} = get_to_and_cc(user, mentioned_users, inReplyTo, "direct")
+  def get_to_and_cc(user, mentioned_users, inReplyTo, "private", _) do
+    {to, cc} = get_to_and_cc(user, mentioned_users, inReplyTo, "direct", nil)
     {[user.follower_address | to], cc}
   end
 
-  def get_to_and_cc(_user, mentioned_users, inReplyTo, "direct") do
+  def get_to_and_cc(_user, mentioned_users, inReplyTo, "direct", _) do
     if inReplyTo do
       {Enum.uniq([inReplyTo.data["actor"] | mentioned_users]), []}
     else
@@ -123,7 +136,7 @@ def get_to_and_cc(_user, mentioned_users, inReplyTo, "direct") do
     end
   end
 
-  def get_to_and_cc(_user, mentions, _inReplyTo, {:list, _}), do: {mentions, []}
+  def get_to_and_cc(_user, mentions, _inReplyTo, {:list, _}, _), do: {mentions, []}
 
   def get_addressed_users(_, to) when is_list(to) do
     User.get_ap_ids_by_nicknames(to)
@@ -253,8 +266,12 @@ defp maybe_add_nsfw_tag({text, mentions, tags}, %{"sensitive" => sensitive})
 
   defp maybe_add_nsfw_tag(data, _), do: data
 
-  def make_context(%Activity{data: %{"context" => context}}), do: context
-  def make_context(_), do: Utils.generate_context_id()
+  def make_context(_, %Participation{} = participation) do
+    Repo.preload(participation, :conversation).conversation.ap_id
+  end
+
+  def make_context(%Activity{data: %{"context" => context}}, _), do: context
+  def make_context(_, _), do: Utils.generate_context_id()
 
   def maybe_add_attachments(parsed, _attachments, true = _no_links), do: parsed
 
diff --git a/lib/pleroma/web/controller_helper.ex b/lib/pleroma/web/controller_helper.ex
index 8a753bb4f..eeac9f503 100644
--- a/lib/pleroma/web/controller_helper.ex
+++ b/lib/pleroma/web/controller_helper.ex
@@ -33,4 +33,80 @@ defp param_to_integer(val, default) when is_binary(val) do
   end
 
   defp param_to_integer(_, default), do: default
+
+  def add_link_headers(
+        conn,
+        method,
+        activities,
+        param \\ nil,
+        params \\ %{},
+        func3 \\ nil,
+        func4 \\ nil
+      ) do
+    params =
+      conn.params
+      |> Map.drop(["since_id", "max_id", "min_id"])
+      |> Map.merge(params)
+
+    last = List.last(activities)
+
+    func3 = func3 || (&mastodon_api_url/3)
+    func4 = func4 || (&mastodon_api_url/4)
+
+    if last do
+      max_id = last.id
+
+      limit =
+        params
+        |> Map.get("limit", "20")
+        |> String.to_integer()
+
+      min_id =
+        if length(activities) <= limit do
+          activities
+          |> List.first()
+          |> Map.get(:id)
+        else
+          activities
+          |> Enum.at(limit * -1)
+          |> Map.get(:id)
+        end
+
+      {next_url, prev_url} =
+        if param do
+          {
+            func4.(
+              Pleroma.Web.Endpoint,
+              method,
+              param,
+              Map.merge(params, %{max_id: max_id})
+            ),
+            func4.(
+              Pleroma.Web.Endpoint,
+              method,
+              param,
+              Map.merge(params, %{min_id: min_id})
+            )
+          }
+        else
+          {
+            func3.(
+              Pleroma.Web.Endpoint,
+              method,
+              Map.merge(params, %{max_id: max_id})
+            ),
+            func3.(
+              Pleroma.Web.Endpoint,
+              method,
+              Map.merge(params, %{min_id: min_id})
+            )
+          }
+        end
+
+      conn
+      |> put_resp_header("link", "<#{next_url}>; rel=\"next\", <#{prev_url}>; rel=\"prev\"")
+    else
+      conn
+    end
+  end
 end
diff --git a/lib/pleroma/web/federator/retry_queue.ex b/lib/pleroma/web/federator/retry_queue.ex
index 3db948c2e..9eab8c218 100644
--- a/lib/pleroma/web/federator/retry_queue.ex
+++ b/lib/pleroma/web/federator/retry_queue.ex
@@ -13,7 +13,7 @@ def init(args) do
     {:ok, %{args | queue_table: queue_table, running_jobs: :sets.new()}}
   end
 
-  def start_link do
+  def start_link(_) do
     enabled =
       if Pleroma.Config.get(:env) == :test,
         do: true,
diff --git a/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex b/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
index 7ce2b5b06..8fe7be8be 100644
--- a/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
+++ b/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
@@ -5,7 +5,8 @@
 defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   use Pleroma.Web, :controller
 
-  import Pleroma.Web.ControllerHelper, only: [json_response: 3]
+  import Pleroma.Web.ControllerHelper,
+    only: [json_response: 3, add_link_headers: 5, add_link_headers: 4, add_link_headers: 3]
 
   alias Ecto.Changeset
   alias Pleroma.Activity
@@ -342,71 +343,6 @@ def custom_emojis(conn, _params) do
     json(conn, mastodon_emoji)
   end
 
-  defp add_link_headers(conn, method, activities, param \\ nil, params \\ %{}) do
-    params =
-      conn.params
-      |> Map.drop(["since_id", "max_id", "min_id"])
-      |> Map.merge(params)
-
-    last = List.last(activities)
-
-    if last do
-      max_id = last.id
-
-      limit =
-        params
-        |> Map.get("limit", "20")
-        |> String.to_integer()
-
-      min_id =
-        if length(activities) <= limit do
-          activities
-          |> List.first()
-          |> Map.get(:id)
-        else
-          activities
-          |> Enum.at(limit * -1)
-          |> Map.get(:id)
-        end
-
-      {next_url, prev_url} =
-        if param do
-          {
-            mastodon_api_url(
-              Pleroma.Web.Endpoint,
-              method,
-              param,
-              Map.merge(params, %{max_id: max_id})
-            ),
-            mastodon_api_url(
-              Pleroma.Web.Endpoint,
-              method,
-              param,
-              Map.merge(params, %{min_id: min_id})
-            )
-          }
-        else
-          {
-            mastodon_api_url(
-              Pleroma.Web.Endpoint,
-              method,
-              Map.merge(params, %{max_id: max_id})
-            ),
-            mastodon_api_url(
-              Pleroma.Web.Endpoint,
-              method,
-              Map.merge(params, %{min_id: min_id})
-            )
-          }
-        end
-
-      conn
-      |> put_resp_header("link", "<#{next_url}>; rel=\"next\", <#{prev_url}>; rel=\"prev\"")
-    else
-      conn
-    end
-  end
-
   def home_timeline(%{assigns: %{user: user}} = conn, params) do
     params =
       params
@@ -1797,7 +1733,7 @@ def conversations(%{assigns: %{user: user}} = conn, params) do
 
     conversations =
       Enum.map(participations, fn participation ->
-        ConversationView.render("participation.json", %{participation: participation, user: user})
+        ConversationView.render("participation.json", %{participation: participation, for: user})
       end)
 
     conn
@@ -1810,7 +1746,7 @@ def conversation_read(%{assigns: %{user: user}} = conn, %{"id" => participation_
            Repo.get_by(Participation, id: participation_id, user_id: user.id),
          {:ok, participation} <- Participation.mark_as_read(participation) do
       participation_view =
-        ConversationView.render("participation.json", %{participation: participation, user: user})
+        ConversationView.render("participation.json", %{participation: participation, for: user})
 
       conn
       |> json(participation_view)
diff --git a/lib/pleroma/web/mastodon_api/views/account_view.ex b/lib/pleroma/web/mastodon_api/views/account_view.ex
index 72c092f25..0ef568f0f 100644
--- a/lib/pleroma/web/mastodon_api/views/account_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/account_view.ex
@@ -37,11 +37,11 @@ def render("relationship.json", %{user: nil, target: _target}) do
   end
 
   def render("relationship.json", %{user: %User{} = user, target: %User{} = target}) do
-    follow_activity = Pleroma.Web.ActivityPub.Utils.fetch_latest_follow(user, target)
+    follow_state = User.get_cached_follow_state(user, target)
 
     requested =
-      if follow_activity && !User.following?(target, user) do
-        follow_activity.data["state"] == "pending"
+      if follow_state && !User.following?(user, target) do
+        follow_state == "pending"
       else
         false
       end
diff --git a/lib/pleroma/web/mastodon_api/views/conversation_view.ex b/lib/pleroma/web/mastodon_api/views/conversation_view.ex
index 38bdec737..40acc07b3 100644
--- a/lib/pleroma/web/mastodon_api/views/conversation_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/conversation_view.ex
@@ -11,8 +11,8 @@ defmodule Pleroma.Web.MastodonAPI.ConversationView do
   alias Pleroma.Web.MastodonAPI.AccountView
   alias Pleroma.Web.MastodonAPI.StatusView
 
-  def render("participation.json", %{participation: participation, user: user}) do
-    participation = Repo.preload(participation, conversation: :users)
+  def render("participation.json", %{participation: participation, for: user}) do
+    participation = Repo.preload(participation, conversation: [], recipients: [])
 
     last_activity_id =
       with nil <- participation.last_activity_id do
@@ -28,7 +28,7 @@ def render("participation.json", %{participation: participation, user: user}) do
 
     # Conversations return all users except the current user.
     users =
-      participation.conversation.users
+      participation.recipients
       |> Enum.reject(&(&1.id == user.id))
 
     accounts =
diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex
index 492af1702..42fbdf51b 100644
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@@ -8,6 +8,8 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
   require Pleroma.Constants
 
   alias Pleroma.Activity
+  alias Pleroma.Conversation
+  alias Pleroma.Conversation.Participation
   alias Pleroma.HTML
   alias Pleroma.Object
   alias Pleroma.Repo
@@ -70,12 +72,14 @@ defp reblogged?(activity, user) do
 
   def render("index.json", opts) do
     replied_to_activities = get_replied_to_activities(opts.activities)
+    parallel = unless is_nil(opts[:parallel]), do: opts[:parallel], else: true
 
     opts.activities
     |> safe_render_many(
       StatusView,
       "status.json",
-      Map.put(opts, :replied_to_activities, replied_to_activities)
+      Map.put(opts, :replied_to_activities, replied_to_activities),
+      parallel
     )
   end
 
@@ -233,6 +237,19 @@ def render("status.json", %{activity: %{data: %{"object" => _object}} = activity
         object.data["url"] || object.data["external_url"] || object.data["id"]
       end
 
+    direct_conversation_id =
+      with {_, true} <- {:include_id, opts[:with_direct_conversation_id]},
+           {_, %User{} = for_user} <- {:for_user, opts[:for]},
+           %{data: %{"context" => context}} when is_binary(context) <- activity,
+           %Conversation{} = conversation <- Conversation.get_for_ap_id(context),
+           %Participation{id: participation_id} <-
+             Participation.for_user_and_conversation(for_user, conversation) do
+        participation_id
+      else
+        _e ->
+          nil
+      end
+
     %{
       id: to_string(activity.id),
       uri: object.data["id"],
@@ -270,7 +287,8 @@ def render("status.json", %{activity: %{data: %{"object" => _object}} = activity
         conversation_id: get_context_id(activity),
         in_reply_to_account_acct: reply_to_user && reply_to_user.nickname,
         content: %{"text/plain" => content_plaintext},
-        spoiler_text: %{"text/plain" => summary_plaintext}
+        spoiler_text: %{"text/plain" => summary_plaintext},
+        direct_conversation_id: direct_conversation_id
       }
     }
   end
diff --git a/lib/pleroma/web/oauth/token/clean_worker.ex b/lib/pleroma/web/oauth/token/clean_worker.ex
index dca852449..f50098302 100644
--- a/lib/pleroma/web/oauth/token/clean_worker.ex
+++ b/lib/pleroma/web/oauth/token/clean_worker.ex
@@ -6,36 +6,30 @@ defmodule Pleroma.Web.OAuth.Token.CleanWorker do
   @moduledoc """
   The module represents functions to clean an expired oauth tokens.
   """
+  use GenServer
+
+  @ten_seconds 10_000
+  @one_day 86_400_000
 
-  # 10 seconds
-  @start_interval 10_000
   @interval Pleroma.Config.get(
-              # 24 hours
               [:oauth2, :clean_expired_tokens_interval],
-              86_400_000
+              @one_day
             )
-  @queue :background
 
   alias Pleroma.Web.OAuth.Token
 
-  def start_link, do: GenServer.start_link(__MODULE__, nil)
+  def start_link(_), do: GenServer.start_link(__MODULE__, %{})
 
   def init(_) do
-    if Pleroma.Config.get([:oauth2, :clean_expired_tokens], false) do
-      Process.send_after(self(), :perform, @start_interval)
-      {:ok, nil}
-    else
-      :ignore
-    end
+    Process.send_after(self(), :perform, @ten_seconds)
+    {:ok, nil}
   end
 
   @doc false
   def handle_info(:perform, state) do
+    Token.delete_expired_tokens()
+
     Process.send_after(self(), :perform, @interval)
-    PleromaJobQueue.enqueue(@queue, __MODULE__, [:clean])
     {:noreply, state}
   end
-
-  # Job Worker Callbacks
-  def perform(:clean), do: Token.delete_expired_tokens()
 end
diff --git a/lib/pleroma/web/pleroma_api/pleroma_api_controller.ex b/lib/pleroma/web/pleroma_api/pleroma_api_controller.ex
new file mode 100644
index 000000000..b6d2bf86b
--- /dev/null
+++ b/lib/pleroma/web/pleroma_api/pleroma_api_controller.ex
@@ -0,0 +1,73 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
+  use Pleroma.Web, :controller
+
+  import Pleroma.Web.ControllerHelper, only: [add_link_headers: 7]
+
+  alias Pleroma.Conversation.Participation
+  alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.MastodonAPI.ConversationView
+  alias Pleroma.Web.MastodonAPI.StatusView
+
+  def conversation(%{assigns: %{user: user}} = conn, %{"id" => participation_id}) do
+    with %Participation{} = participation <- Participation.get(participation_id),
+         true <- user.id == participation.user_id do
+      conn
+      |> put_view(ConversationView)
+      |> render("participation.json", %{participation: participation, for: user})
+    end
+  end
+
+  def conversation_statuses(
+        %{assigns: %{user: user}} = conn,
+        %{"id" => participation_id} = params
+      ) do
+    params =
+      params
+      |> Map.put("blocking_user", user)
+      |> Map.put("muting_user", user)
+      |> Map.put("user", user)
+
+    participation =
+      participation_id
+      |> Participation.get(preload: [:conversation])
+
+    if user.id == participation.user_id do
+      activities =
+        participation.conversation.ap_id
+        |> ActivityPub.fetch_activities_for_context(params)
+        |> Enum.reverse()
+
+      conn
+      |> add_link_headers(
+        :conversation_statuses,
+        activities,
+        participation_id,
+        params,
+        nil,
+        &pleroma_api_url/4
+      )
+      |> put_view(StatusView)
+      |> render("index.json", %{activities: activities, for: user, as: :activity})
+    end
+  end
+
+  def update_conversation(
+        %{assigns: %{user: user}} = conn,
+        %{"id" => participation_id, "recipients" => recipients}
+      ) do
+    participation =
+      participation_id
+      |> Participation.get()
+
+    with true <- user.id == participation.user_id,
+         {:ok, participation} <- Participation.set_recipients(participation, recipients) do
+      conn
+      |> put_view(ConversationView)
+      |> render("participation.json", %{participation: participation, for: user})
+    end
+  end
+end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index c8c1c22dd..1eb6f7b9d 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -259,6 +259,21 @@ defmodule Pleroma.Web.Router do
     end
   end
 
+  scope "/api/v1/pleroma", Pleroma.Web.PleromaAPI do
+    pipe_through(:authenticated_api)
+
+    scope [] do
+      pipe_through(:oauth_read)
+      get("/conversations/:id/statuses", PleromaAPIController, :conversation_statuses)
+      get("/conversations/:id", PleromaAPIController, :conversation)
+    end
+
+    scope [] do
+      pipe_through(:oauth_write)
+      patch("/conversations/:id", PleromaAPIController, :update_conversation)
+    end
+  end
+
   scope "/api/v1", Pleroma.Web.MastodonAPI do
     pipe_through(:authenticated_api)
 
diff --git a/lib/pleroma/web/streamer.ex b/lib/pleroma/web/streamer.ex
index 9ee331030..587c43f40 100644
--- a/lib/pleroma/web/streamer.ex
+++ b/lib/pleroma/web/streamer.ex
@@ -18,7 +18,7 @@ defmodule Pleroma.Web.Streamer do
 
   @keepalive_interval :timer.seconds(30)
 
-  def start_link do
+  def start_link(_) do
     GenServer.start_link(__MODULE__, %{}, name: __MODULE__)
   end
 
@@ -35,28 +35,21 @@ def stream(topic, item) do
   end
 
   def init(args) do
-    spawn(fn ->
-      # 30 seconds
-      Process.sleep(@keepalive_interval)
-      GenServer.cast(__MODULE__, %{action: :ping})
-    end)
+    Process.send_after(self(), %{action: :ping}, @keepalive_interval)
 
     {:ok, args}
   end
 
-  def handle_cast(%{action: :ping}, topics) do
-    Map.values(topics)
+  def handle_info(%{action: :ping}, topics) do
+    topics
+    |> Map.values()
     |> List.flatten()
     |> Enum.each(fn socket ->
       Logger.debug("Sending keepalive ping")
       send(socket.transport_pid, {:text, ""})
     end)
 
-    spawn(fn ->
-      # 30 seconds
-      Process.sleep(@keepalive_interval)
-      GenServer.cast(__MODULE__, %{action: :ping})
-    end)
+    Process.send_after(self(), %{action: :ping}, @keepalive_interval)
 
     {:noreply, topics}
   end
@@ -120,8 +113,7 @@ def handle_cast(
     |> Map.get("#{topic}:#{item.user_id}", [])
     |> Enum.each(fn socket ->
       with %User{} = user <- User.get_cached_by_ap_id(socket.assigns[:user].ap_id),
-           true <- should_send?(user, item),
-           false <- CommonAPI.thread_muted?(user, item.activity) do
+           true <- should_send?(user, item) do
         send(
           socket.transport_pid,
           {:text, represent_notification(socket.assigns[:user], item)}
@@ -209,7 +201,7 @@ def represent_conversation(%Participation{} = participation) do
       payload:
         Pleroma.Web.MastodonAPI.ConversationView.render("participation.json", %{
           participation: participation,
-          user: participation.user
+          for: participation.user
         })
         |> Jason.encode!()
     }
@@ -243,7 +235,8 @@ defp should_send?(%User{} = user, %Activity{} = item) do
          %{host: parent_host} <- URI.parse(parent.data["actor"]),
          false <- Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, item_host),
          false <- Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, parent_host),
-         true <- thread_containment(item, user) do
+         true <- thread_containment(item, user),
+         false <- CommonAPI.thread_muted?(user, item) do
       true
     else
       _ -> false
diff --git a/lib/pleroma/web/web.ex b/lib/pleroma/web/web.ex
index 687346554..bfb6c7287 100644
--- a/lib/pleroma/web/web.ex
+++ b/lib/pleroma/web/web.ex
@@ -66,9 +66,23 @@ def safe_render(view, template, assigns \\ %{}) do
       end
 
       @doc """
-      Same as `render_many/4` but wrapped in rescue block.
+      Same as `render_many/4` but wrapped in rescue block and parallelized (unless disabled by passing false as a fifth argument).
       """
-      def safe_render_many(collection, view, template, assigns \\ %{}) do
+      def safe_render_many(collection, view, template, assigns \\ %{}, parallel \\ true)
+
+      def safe_render_many(collection, view, template, assigns, true) do
+        Enum.map(collection, fn resource ->
+          Task.async(fn ->
+            as = Map.get(assigns, :as) || view.__resource__
+            assigns = Map.put(assigns, as, resource)
+            safe_render(view, template, assigns)
+          end)
+        end)
+        |> Enum.map(&Task.await(&1, :infinity))
+        |> Enum.filter(& &1)
+      end
+
+      def safe_render_many(collection, view, template, assigns, false) do
         Enum.map(collection, fn resource ->
           as = Map.get(assigns, :as) || view.__resource__
           assigns = Map.put(assigns, as, resource)
diff --git a/priv/repo/migrations/20190205114625_create_thread_mutes.exs b/priv/repo/migrations/20190205114625_create_thread_mutes.exs
index 7e44db121..baaf07253 100644
--- a/priv/repo/migrations/20190205114625_create_thread_mutes.exs
+++ b/priv/repo/migrations/20190205114625_create_thread_mutes.exs
@@ -6,7 +6,7 @@ def change do
       add :user_id, references(:users, type: :uuid, on_delete: :delete_all)
       add :context, :string
     end
-    
+
     create_if_not_exists unique_index(:thread_mutes, [:user_id, :context], name: :unique_index)
   end
 end
diff --git a/priv/repo/migrations/20190801154554_create_conversation_participation_recipient_ships.exs b/priv/repo/migrations/20190801154554_create_conversation_participation_recipient_ships.exs
new file mode 100644
index 000000000..c6e3469d5
--- /dev/null
+++ b/priv/repo/migrations/20190801154554_create_conversation_participation_recipient_ships.exs
@@ -0,0 +1,13 @@
+defmodule Pleroma.Repo.Migrations.CreateConversationParticipationRecipientShips do
+  use Ecto.Migration
+
+  def change do
+    create_if_not_exists table(:conversation_participation_recipient_ships) do
+      add(:user_id, references(:users, type: :uuid, on_delete: :delete_all))
+      add(:participation_id, references(:conversation_participations, on_delete: :delete_all))
+    end
+
+    create_if_not_exists index(:conversation_participation_recipient_ships, [:user_id])
+    create_if_not_exists index(:conversation_participation_recipient_ships, [:participation_id])
+  end
+end
diff --git a/test/config/transfer_task_test.exs b/test/config/transfer_task_test.exs
index dbeadbe87..9074f3b97 100644
--- a/test/config/transfer_task_test.exs
+++ b/test/config/transfer_task_test.exs
@@ -5,14 +5,8 @@
 defmodule Pleroma.Config.TransferTaskTest do
   use Pleroma.DataCase
 
-  setup do
-    dynamic = Pleroma.Config.get([:instance, :dynamic_configuration])
-
+  clear_config([:instance, :dynamic_configuration]) do
     Pleroma.Config.put([:instance, :dynamic_configuration], true)
-
-    on_exit(fn ->
-      Pleroma.Config.put([:instance, :dynamic_configuration], dynamic)
-    end)
   end
 
   test "transfer config values from db to env" do
@@ -31,7 +25,7 @@ test "transfer config values from db to env" do
       value: [live: 15, com: 35]
     })
 
-    Pleroma.Config.TransferTask.start_link()
+    Pleroma.Config.TransferTask.start_link([])
 
     assert Application.get_env(:pleroma, :test_key) == [live: 2, com: 3]
     assert Application.get_env(:idna, :test_key) == [live: 15, com: 35]
@@ -50,7 +44,7 @@ test "non existing atom" do
     })
 
     assert ExUnit.CaptureLog.capture_log(fn ->
-             Pleroma.Config.TransferTask.start_link()
+             Pleroma.Config.TransferTask.start_link([])
            end) =~
              "updating env causes error, key: \"undefined_atom_key\", error: %ArgumentError{message: \"argument error\"}"
   end
diff --git a/test/conversation/participation_test.exs b/test/conversation/participation_test.exs
index 2a03e5d67..a27167d42 100644
--- a/test/conversation/participation_test.exs
+++ b/test/conversation/participation_test.exs
@@ -8,6 +8,50 @@ defmodule Pleroma.Conversation.ParticipationTest do
   alias Pleroma.Conversation.Participation
   alias Pleroma.Web.CommonAPI
 
+  test "getting a participation will also preload things" do
+    user = insert(:user)
+    other_user = insert(:user)
+
+    {:ok, _activity} =
+      CommonAPI.post(user, %{"status" => "Hey @#{other_user.nickname}.", "visibility" => "direct"})
+
+    [participation] = Participation.for_user(user)
+
+    participation = Participation.get(participation.id, preload: [:conversation])
+
+    assert %Pleroma.Conversation{} = participation.conversation
+  end
+
+  test "for a new conversation, it sets the recipents of the participation" do
+    user = insert(:user)
+    other_user = insert(:user)
+    third_user = insert(:user)
+
+    {:ok, activity} =
+      CommonAPI.post(user, %{"status" => "Hey @#{other_user.nickname}.", "visibility" => "direct"})
+
+    [participation] = Participation.for_user(user)
+    participation = Pleroma.Repo.preload(participation, :recipients)
+
+    assert length(participation.recipients) == 2
+    assert user in participation.recipients
+    assert other_user in participation.recipients
+
+    # Mentioning another user in the same conversation will not add a new recipients.
+
+    {:ok, _activity} =
+      CommonAPI.post(user, %{
+        "in_reply_to_status_id" => activity.id,
+        "status" => "Hey @#{third_user.nickname}.",
+        "visibility" => "direct"
+      })
+
+    [participation] = Participation.for_user(user)
+    participation = Pleroma.Repo.preload(participation, :recipients)
+
+    assert length(participation.recipients) == 2
+  end
+
   test "it creates a participation for a conversation and a user" do
     user = insert(:user)
     conversation = insert(:conversation)
@@ -102,4 +146,23 @@ test "Doesn't die when the conversation gets empty" do
 
     [] = Participation.for_user_with_last_activity_id(user)
   end
+
+  test "it sets recipients, always keeping the owner of the participation even when not explicitly set" do
+    user = insert(:user)
+    other_user = insert(:user)
+
+    {:ok, _activity} = CommonAPI.post(user, %{"status" => ".", "visibility" => "direct"})
+    [participation] = Participation.for_user_with_last_activity_id(user)
+
+    participation = Repo.preload(participation, :recipients)
+
+    assert participation.recipients |> length() == 1
+    assert user in participation.recipients
+
+    {:ok, participation} = Participation.set_recipients(participation, [other_user.id])
+
+    assert participation.recipients |> length() == 2
+    assert user in participation.recipients
+    assert other_user in participation.recipients
+  end
 end
diff --git a/test/conversation_test.exs b/test/conversation_test.exs
index aa193e0d4..4e36494f8 100644
--- a/test/conversation_test.exs
+++ b/test/conversation_test.exs
@@ -11,14 +11,8 @@ defmodule Pleroma.ConversationTest do
 
   import Pleroma.Factory
 
-  setup_all do
-    config_path = [:instance, :federating]
-    initial_setting = Pleroma.Config.get(config_path)
-
-    Pleroma.Config.put(config_path, true)
-    on_exit(fn -> Pleroma.Config.put(config_path, initial_setting) end)
-
-    :ok
+  clear_config_all([:instance, :federating]) do
+    Pleroma.Config.put([:instance, :federating], true)
   end
 
   test "it goes through old direct conversations" do
diff --git a/test/emails/mailer_test.exs b/test/emails/mailer_test.exs
index 450bb09c7..ae5effb7a 100644
--- a/test/emails/mailer_test.exs
+++ b/test/emails/mailer_test.exs
@@ -15,11 +15,7 @@ defmodule Pleroma.Emails.MailerTest do
     to: [{"Test User", "user1@example.com"}]
   }
 
-  setup do
-    value = Pleroma.Config.get([Pleroma.Emails.Mailer, :enabled])
-    on_exit(fn -> Pleroma.Config.put([Pleroma.Emails.Mailer, :enabled], value) end)
-    :ok
-  end
+  clear_config([Pleroma.Emails.Mailer, :enabled])
 
   test "not send email when mailer is disabled" do
     Pleroma.Config.put([Pleroma.Emails.Mailer, :enabled], false)
diff --git a/test/http/request_builder_test.exs b/test/http/request_builder_test.exs
index 7febe84c5..170ca916f 100644
--- a/test/http/request_builder_test.exs
+++ b/test/http/request_builder_test.exs
@@ -4,21 +4,19 @@
 
 defmodule Pleroma.HTTP.RequestBuilderTest do
   use ExUnit.Case, async: true
+  use Pleroma.Tests.Helpers
   alias Pleroma.HTTP.RequestBuilder
 
   describe "headers/2" do
+    clear_config([:http, :send_user_agent])
+
     test "don't send pleroma user agent" do
       assert RequestBuilder.headers(%{}, []) == %{headers: []}
     end
 
     test "send pleroma user agent" do
-      send = Pleroma.Config.get([:http, :send_user_agent])
       Pleroma.Config.put([:http, :send_user_agent], true)
 
-      on_exit(fn ->
-        Pleroma.Config.put([:http, :send_user_agent], send)
-      end)
-
       assert RequestBuilder.headers(%{}, []) == %{
                headers: [{"User-Agent", Pleroma.Application.user_agent()}]
              }
diff --git a/test/object/fetcher_test.exs b/test/object/fetcher_test.exs
index 0ca87f035..895a73d2c 100644
--- a/test/object/fetcher_test.exs
+++ b/test/object/fetcher_test.exs
@@ -159,32 +159,28 @@ test "it can refetch pruned objects" do
   end
 
   describe "signed fetches" do
+    clear_config([:activitypub, :sign_object_fetches])
+
     test_with_mock "it signs fetches when configured to do so",
                    Pleroma.Signature,
                    [:passthrough],
                    [] do
-      option = Pleroma.Config.get([:activitypub, :sign_object_fetches])
       Pleroma.Config.put([:activitypub, :sign_object_fetches], true)
 
       Fetcher.fetch_object_from_id("http://mastodon.example.org/@admin/99541947525187367")
 
       assert called(Pleroma.Signature.sign(:_, :_))
-
-      Pleroma.Config.put([:activitypub, :sign_object_fetches], option)
     end
 
     test_with_mock "it doesn't sign fetches when not configured to do so",
                    Pleroma.Signature,
                    [:passthrough],
                    [] do
-      option = Pleroma.Config.get([:activitypub, :sign_object_fetches])
       Pleroma.Config.put([:activitypub, :sign_object_fetches], false)
 
       Fetcher.fetch_object_from_id("http://mastodon.example.org/@admin/99541947525187367")
 
       refute called(Pleroma.Signature.sign(:_, :_))
-
-      Pleroma.Config.put([:activitypub, :sign_object_fetches], option)
     end
   end
 end
diff --git a/test/plugs/ensure_public_or_authenticated_plug_test.exs b/test/plugs/ensure_public_or_authenticated_plug_test.exs
index ce5d77ff7..d45662a2a 100644
--- a/test/plugs/ensure_public_or_authenticated_plug_test.exs
+++ b/test/plugs/ensure_public_or_authenticated_plug_test.exs
@@ -9,8 +9,10 @@ defmodule Pleroma.Plugs.EnsurePublicOrAuthenticatedPlugTest do
   alias Pleroma.Plugs.EnsurePublicOrAuthenticatedPlug
   alias Pleroma.User
 
+  clear_config([:instance, :public])
+
   test "it halts if not public and no user is assigned", %{conn: conn} do
-    set_public_to(false)
+    Config.put([:instance, :public], false)
 
     conn =
       conn
@@ -21,7 +23,7 @@ test "it halts if not public and no user is assigned", %{conn: conn} do
   end
 
   test "it continues if public", %{conn: conn} do
-    set_public_to(true)
+    Config.put([:instance, :public], true)
 
     ret_conn =
       conn
@@ -31,7 +33,7 @@ test "it continues if public", %{conn: conn} do
   end
 
   test "it continues if a user is assigned, even if not public", %{conn: conn} do
-    set_public_to(false)
+    Config.put([:instance, :public], false)
 
     conn =
       conn
@@ -43,13 +45,4 @@ test "it continues if a user is assigned, even if not public", %{conn: conn} do
 
     assert ret_conn == conn
   end
-
-  defp set_public_to(value) do
-    orig = Config.get!([:instance, :public])
-    Config.put([:instance, :public], value)
-
-    on_exit(fn ->
-      Config.put([:instance, :public], orig)
-    end)
-  end
 end
diff --git a/test/plugs/http_security_plug_test.exs b/test/plugs/http_security_plug_test.exs
index 7dfd50c1f..7a2835e3d 100644
--- a/test/plugs/http_security_plug_test.exs
+++ b/test/plugs/http_security_plug_test.exs
@@ -7,17 +7,12 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
   alias Pleroma.Config
   alias Plug.Conn
 
+  clear_config([:http_securiy, :enabled])
+  clear_config([:http_security, :sts])
+
   describe "http security enabled" do
     setup do
-      enabled = Config.get([:http_securiy, :enabled])
-
       Config.put([:http_security, :enabled], true)
-
-      on_exit(fn ->
-        Config.put([:http_security, :enabled], enabled)
-      end)
-
-      :ok
     end
 
     test "it sends CSP headers when enabled", %{conn: conn} do
@@ -81,14 +76,8 @@ test "it sends `report-to` & `report-uri` CSP response headers" do
   end
 
   test "it does not send CSP headers when disabled", %{conn: conn} do
-    enabled = Config.get([:http_securiy, :enabled])
-
     Config.put([:http_security, :enabled], false)
 
-    on_exit(fn ->
-      Config.put([:http_security, :enabled], enabled)
-    end)
-
     conn = get(conn, "/api/v1/instance")
 
     assert Conn.get_resp_header(conn, "x-xss-protection") == []
diff --git a/test/plugs/instance_static_test.exs b/test/plugs/instance_static_test.exs
index e2dcfa3d8..6aabc45a4 100644
--- a/test/plugs/instance_static_test.exs
+++ b/test/plugs/instance_static_test.exs
@@ -8,14 +8,12 @@ defmodule Pleroma.Web.RuntimeStaticPlugTest do
   @dir "test/tmp/instance_static"
 
   setup do
-    static_dir = Pleroma.Config.get([:instance, :static_dir])
-    Pleroma.Config.put([:instance, :static_dir], @dir)
     File.mkdir_p!(@dir)
+    on_exit(fn -> File.rm_rf(@dir) end)
+  end
 
-    on_exit(fn ->
-      Pleroma.Config.put([:instance, :static_dir], static_dir)
-      File.rm_rf(@dir)
-    end)
+  clear_config([:instance, :static_dir]) do
+    Pleroma.Config.put([:instance, :static_dir], @dir)
   end
 
   test "overrides index" do
diff --git a/test/support/helpers.ex b/test/support/helpers.ex
index 1a92be065..a601b3ec8 100644
--- a/test/support/helpers.ex
+++ b/test/support/helpers.ex
@@ -7,8 +7,52 @@ defmodule Pleroma.Tests.Helpers do
   Helpers for use in tests.
   """
 
+  defmacro clear_config(config_path) do
+    quote do
+      clear_config(unquote(config_path)) do
+      end
+    end
+  end
+
+  defmacro clear_config(config_path, do: yield) do
+    quote do
+      setup do
+        initial_setting = Pleroma.Config.get(unquote(config_path))
+        unquote(yield)
+        on_exit(fn -> Pleroma.Config.put(unquote(config_path), initial_setting) end)
+        :ok
+      end
+    end
+  end
+
+  defmacro clear_config_all(config_path) do
+    quote do
+      clear_config_all(unquote(config_path)) do
+      end
+    end
+  end
+
+  defmacro clear_config_all(config_path, do: yield) do
+    quote do
+      setup_all do
+        initial_setting = Pleroma.Config.get(unquote(config_path))
+        unquote(yield)
+        on_exit(fn -> Pleroma.Config.put(unquote(config_path), initial_setting) end)
+        :ok
+      end
+    end
+  end
+
   defmacro __using__(_opts) do
     quote do
+      import Pleroma.Tests.Helpers,
+        only: [
+          clear_config: 1,
+          clear_config: 2,
+          clear_config_all: 1,
+          clear_config_all: 2
+        ]
+
       def collect_ids(collection) do
         collection
         |> Enum.map(& &1.id)
@@ -30,6 +74,15 @@ def render_json(view, template, assigns) do
         |> Poison.encode!()
         |> Poison.decode!()
       end
+
+      defmacro guards_config(config_path) do
+        quote do
+          initial_setting = Pleroma.Config.get(config_path)
+
+          Pleroma.Config.put(config_path, true)
+          on_exit(fn -> Pleroma.Config.put(config_path, initial_setting) end)
+        end
+      end
     end
   end
 end
diff --git a/test/tasks/config_test.exs b/test/tasks/config_test.exs
index a9b79eb5b..9cd47380c 100644
--- a/test/tasks/config_test.exs
+++ b/test/tasks/config_test.exs
@@ -11,21 +11,20 @@ defmodule Mix.Tasks.Pleroma.ConfigTest do
     Mix.shell(Mix.Shell.Process)
     temp_file = "config/temp.exported_from_db.secret.exs"
 
-    dynamic = Pleroma.Config.get([:instance, :dynamic_configuration])
-
-    Pleroma.Config.put([:instance, :dynamic_configuration], true)
-
     on_exit(fn ->
       Mix.shell(Mix.Shell.IO)
       Application.delete_env(:pleroma, :first_setting)
       Application.delete_env(:pleroma, :second_setting)
-      Pleroma.Config.put([:instance, :dynamic_configuration], dynamic)
       :ok = File.rm(temp_file)
     end)
 
     {:ok, temp_file: temp_file}
   end
 
+  clear_config_all([:instance, :dynamic_configuration]) do
+    Pleroma.Config.put([:instance, :dynamic_configuration], true)
+  end
+
   test "settings are migrated to db" do
     assert Repo.all(Config) == []
 
diff --git a/test/tasks/database_test.exs b/test/tasks/database_test.exs
index a8f25f500..a9925c361 100644
--- a/test/tasks/database_test.exs
+++ b/test/tasks/database_test.exs
@@ -3,6 +3,7 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Mix.Tasks.Pleroma.DatabaseTest do
+  alias Pleroma.Activity
   alias Pleroma.Object
   alias Pleroma.Repo
   alias Pleroma.User
@@ -22,6 +23,52 @@ defmodule Mix.Tasks.Pleroma.DatabaseTest do
     :ok
   end
 
+  describe "running remove_embedded_objects" do
+    test "it replaces objects with references" do
+      user = insert(:user)
+      {:ok, activity} = CommonAPI.post(user, %{"status" => "test"})
+      new_data = Map.put(activity.data, "object", activity.object.data)
+
+      {:ok, activity} =
+        activity
+        |> Activity.change(%{data: new_data})
+        |> Repo.update()
+
+      assert is_map(activity.data["object"])
+
+      Mix.Tasks.Pleroma.Database.run(["remove_embedded_objects"])
+
+      activity = Activity.get_by_id_with_object(activity.id)
+      assert is_binary(activity.data["object"])
+    end
+  end
+
+  describe "prune_objects" do
+    test "it prunes old objects from the database" do
+      insert(:note)
+      deadline = Pleroma.Config.get([:instance, :remote_post_retention_days]) + 1
+
+      date =
+        Timex.now()
+        |> Timex.shift(days: -deadline)
+        |> Timex.to_naive_datetime()
+        |> NaiveDateTime.truncate(:second)
+
+      %{id: id} =
+        :note
+        |> insert()
+        |> Ecto.Changeset.change(%{inserted_at: date})
+        |> Repo.update!()
+
+      assert length(Repo.all(Object)) == 2
+
+      Mix.Tasks.Pleroma.Database.run(["prune_objects"])
+
+      assert length(Repo.all(Object)) == 1
+      refute Object.get_by_id(id)
+    end
+  end
+
   describe "running update_users_following_followers_counts" do
     test "following and followers count are updated" do
       [user, user2] = insert_pair(:user)
diff --git a/test/mix/tasks/pleroma.digest_test.exs b/test/tasks/digest_test.exs
similarity index 100%
rename from test/mix/tasks/pleroma.digest_test.exs
rename to test/tasks/digest_test.exs
diff --git a/test/tasks/relay_test.exs b/test/tasks/relay_test.exs
index 9d260da3e..0d341c8d6 100644
--- a/test/tasks/relay_test.exs
+++ b/test/tasks/relay_test.exs
@@ -69,4 +69,27 @@ test "relay is unfollowed" do
       assert undo_activity.data["object"] == cancelled_activity.data
     end
   end
+
+  describe "mix pleroma.relay list" do
+    test "Prints relay subscription list" do
+      :ok = Mix.Tasks.Pleroma.Relay.run(["list"])
+
+      refute_receive {:mix_shell, :info, _}
+
+      Pleroma.Web.ActivityPub.Relay.get_actor()
+      |> Ecto.Changeset.change(
+        following: [
+          "http://test-app.com/user/test1",
+          "http://test-app.com/user/test1",
+          "http://test-app-42.com/user/test1"
+        ]
+      )
+      |> Pleroma.User.update_and_set_cache()
+
+      :ok = Mix.Tasks.Pleroma.Relay.run(["list"])
+
+      assert_receive {:mix_shell, :info, ["test-app.com"]}
+      assert_receive {:mix_shell, :info, ["test-app-42.com"]}
+    end
+  end
 end
diff --git a/test/tasks/robots_txt_test.exs b/test/tasks/robots_txt_test.exs
index 78a3f17b4..917df2675 100644
--- a/test/tasks/robots_txt_test.exs
+++ b/test/tasks/robots_txt_test.exs
@@ -4,17 +4,17 @@
 
 defmodule Mix.Tasks.Pleroma.RobotsTxtTest do
   use ExUnit.Case
+  use Pleroma.Tests.Helpers
   alias Mix.Tasks.Pleroma.RobotsTxt
 
+  clear_config([:instance, :static_dir])
+
   test "creates new dir" do
     path = "test/fixtures/new_dir/"
     file_path = path <> "robots.txt"
-
-    static_dir = Pleroma.Config.get([:instance, :static_dir])
     Pleroma.Config.put([:instance, :static_dir], path)
 
     on_exit(fn ->
-      Pleroma.Config.put([:instance, :static_dir], static_dir)
       {:ok, ["test/fixtures/new_dir/", "test/fixtures/new_dir/robots.txt"]} = File.rm_rf(path)
     end)
 
@@ -29,11 +29,9 @@ test "creates new dir" do
   test "to existance folder" do
     path = "test/fixtures/"
     file_path = path <> "robots.txt"
-    static_dir = Pleroma.Config.get([:instance, :static_dir])
     Pleroma.Config.put([:instance, :static_dir], path)
 
     on_exit(fn ->
-      Pleroma.Config.put([:instance, :static_dir], static_dir)
       :ok = File.rm(file_path)
     end)
 
diff --git a/test/upload/filter/anonymize_filename_test.exs b/test/upload/filter/anonymize_filename_test.exs
index a31b38ab1..6b33e7395 100644
--- a/test/upload/filter/anonymize_filename_test.exs
+++ b/test/upload/filter/anonymize_filename_test.exs
@@ -9,12 +9,6 @@ defmodule Pleroma.Upload.Filter.AnonymizeFilenameTest do
   alias Pleroma.Upload
 
   setup do
-    custom_filename = Config.get([Upload.Filter.AnonymizeFilename, :text])
-
-    on_exit(fn ->
-      Config.put([Upload.Filter.AnonymizeFilename, :text], custom_filename)
-    end)
-
     upload_file = %Upload{
       name: "an… image.jpg",
       content_type: "image/jpg",
@@ -24,6 +18,8 @@ defmodule Pleroma.Upload.Filter.AnonymizeFilenameTest do
     %{upload_file: upload_file}
   end
 
+  clear_config([Pleroma.Upload.Filter.AnonymizeFilename, :text])
+
   test "it replaces filename on pre-defined text", %{upload_file: upload_file} do
     Config.put([Upload.Filter.AnonymizeFilename, :text], "custom-file.png")
     {:ok, %Upload{name: name}} = Upload.Filter.AnonymizeFilename.filter(upload_file)
diff --git a/test/upload/filter/mogrify_test.exs b/test/upload/filter/mogrify_test.exs
index c301440fd..210320d30 100644
--- a/test/upload/filter/mogrify_test.exs
+++ b/test/upload/filter/mogrify_test.exs
@@ -10,13 +10,7 @@ defmodule Pleroma.Upload.Filter.MogrifyTest do
   alias Pleroma.Upload
   alias Pleroma.Upload.Filter
 
-  setup do
-    filter = Config.get([Filter.Mogrify, :args])
-
-    on_exit(fn ->
-      Config.put([Filter.Mogrify, :args], filter)
-    end)
-  end
+  clear_config([Filter.Mogrify, :args])
 
   test "apply mogrify filter" do
     Config.put([Filter.Mogrify, :args], [{"tint", "40"}])
diff --git a/test/upload/filter_test.exs b/test/upload/filter_test.exs
index 640cd7107..03887c06a 100644
--- a/test/upload/filter_test.exs
+++ b/test/upload/filter_test.exs
@@ -8,13 +8,7 @@ defmodule Pleroma.Upload.FilterTest do
   alias Pleroma.Config
   alias Pleroma.Upload.Filter
 
-  setup do
-    custom_filename = Config.get([Pleroma.Upload.Filter.AnonymizeFilename, :text])
-
-    on_exit(fn ->
-      Config.put([Pleroma.Upload.Filter.AnonymizeFilename, :text], custom_filename)
-    end)
-  end
+  clear_config([Pleroma.Upload.Filter.AnonymizeFilename, :text])
 
   test "applies filters" do
     Config.put([Pleroma.Upload.Filter.AnonymizeFilename, :text], "custom-file.png")
diff --git a/test/upload_test.exs b/test/upload_test.exs
index 95b16078b..6721fe82e 100644
--- a/test/upload_test.exs
+++ b/test/upload_test.exs
@@ -250,12 +250,8 @@ test "escapes reserved uri characters" do
   end
 
   describe "Setting a custom base_url for uploaded media" do
-    setup do
+    clear_config([Pleroma.Upload, :base_url]) do
       Pleroma.Config.put([Pleroma.Upload, :base_url], "https://cache.pleroma.social")
-
-      on_exit(fn ->
-        Pleroma.Config.put([Pleroma.Upload, :base_url], nil)
-      end)
     end
 
     test "returns a media url with configured base_url" do
diff --git a/test/uploaders/s3_test.exs b/test/uploaders/s3_test.exs
index a0a1cfdf0..171316340 100644
--- a/test/uploaders/s3_test.exs
+++ b/test/uploaders/s3_test.exs
@@ -11,19 +11,11 @@ defmodule Pleroma.Uploaders.S3Test do
   import Mock
   import ExUnit.CaptureLog
 
-  setup do
-    config = Config.get([Pleroma.Uploaders.S3])
-
+  clear_config([Pleroma.Uploaders.S3]) do
     Config.put([Pleroma.Uploaders.S3],
       bucket: "test_bucket",
       public_endpoint: "https://s3.amazonaws.com"
     )
-
-    on_exit(fn ->
-      Config.put([Pleroma.Uploaders.S3], config)
-    end)
-
-    :ok
   end
 
   describe "get_file/1" do
diff --git a/test/user_test.exs b/test/user_test.exs
index b363b322c..27156f036 100644
--- a/test/user_test.exs
+++ b/test/user_test.exs
@@ -21,6 +21,8 @@ defmodule Pleroma.UserTest do
     :ok
   end
 
+  clear_config([:instance, :account_activation_required])
+
   describe "when tags are nil" do
     test "tagging a user" do
       user = insert(:user, %{tags: nil})
@@ -90,6 +92,17 @@ test "doesn't return already accepted or duplicate follow requests" do
     assert activity
   end
 
+  test "clears follow requests when requester is blocked" do
+    followed = insert(:user, %{info: %{locked: true}})
+    follower = insert(:user)
+
+    CommonAPI.follow(follower, followed)
+    assert {:ok, [_activity]} = User.get_follow_requests(followed)
+
+    {:ok, _follower} = User.block(followed, follower)
+    assert {:ok, []} = User.get_follow_requests(followed)
+  end
+
   test "follow_all follows mutliple users" do
     user = insert(:user)
     followed_zero = insert(:user)
@@ -192,24 +205,64 @@ test "local users do not automatically follow local locked accounts" do
   #   assert websub
   # end
 
-  test "unfollow takes a user and another user" do
-    followed = insert(:user)
-    user = insert(:user, %{following: [User.ap_followers(followed)]})
+  describe "unfollow/2" do
+    setup do
+      setting = Pleroma.Config.get([:instance, :external_user_synchronization])
 
-    {:ok, user, _activity} = User.unfollow(user, followed)
+      on_exit(fn ->
+        Pleroma.Config.put([:instance, :external_user_synchronization], setting)
+      end)
 
-    user = User.get_cached_by_id(user.id)
+      :ok
+    end
 
-    assert user.following == []
-  end
+    test "unfollow with syncronizes external user" do
+      Pleroma.Config.put([:instance, :external_user_synchronization], true)
 
-  test "unfollow doesn't unfollow yourself" do
-    user = insert(:user)
+      followed =
+        insert(:user,
+          nickname: "fuser1",
+          follower_address: "http://localhost:4001/users/fuser1/followers",
+          following_address: "http://localhost:4001/users/fuser1/following",
+          ap_id: "http://localhost:4001/users/fuser1"
+        )
 
-    {:error, _} = User.unfollow(user, user)
+      user =
+        insert(:user, %{
+          local: false,
+          nickname: "fuser2",
+          ap_id: "http://localhost:4001/users/fuser2",
+          follower_address: "http://localhost:4001/users/fuser2/followers",
+          following_address: "http://localhost:4001/users/fuser2/following",
+          following: [User.ap_followers(followed)]
+        })
 
-    user = User.get_cached_by_id(user.id)
-    assert user.following == [user.ap_id]
+      {:ok, user, _activity} = User.unfollow(user, followed)
+
+      user = User.get_cached_by_id(user.id)
+
+      assert user.following == []
+    end
+
+    test "unfollow takes a user and another user" do
+      followed = insert(:user)
+      user = insert(:user, %{following: [User.ap_followers(followed)]})
+
+      {:ok, user, _activity} = User.unfollow(user, followed)
+
+      user = User.get_cached_by_id(user.id)
+
+      assert user.following == []
+    end
+
+    test "unfollow doesn't unfollow yourself" do
+      user = insert(:user)
+
+      {:error, _} = User.unfollow(user, user)
+
+      user = User.get_cached_by_id(user.id)
+      assert user.following == [user.ap_id]
+    end
   end
 
   test "test if a user is following another user" do
@@ -236,6 +289,9 @@ test "fetches correct profile for nickname beginning with number" do
       password_confirmation: "test",
       email: "email@example.com"
     }
+    clear_config([:instance, :autofollowed_nicknames])
+    clear_config([:instance, :welcome_message])
+    clear_config([:instance, :welcome_user_nickname])
 
     test "it autofollows accounts that are set for it" do
       user = insert(:user)
@@ -252,8 +308,6 @@ test "it autofollows accounts that are set for it" do
 
       assert User.following?(registered_user, user)
       refute User.following?(registered_user, remote_user)
-
-      Pleroma.Config.put([:instance, :autofollowed_nicknames], [])
     end
 
     test "it sends a welcome message if it is set" do
@@ -269,9 +323,6 @@ test "it sends a welcome message if it is set" do
       assert registered_user.ap_id in activity.recipients
       assert Object.normalize(activity).data["content"] =~ "cool site"
       assert activity.actor == welcome_user.ap_id
-
-      Pleroma.Config.put([:instance, :welcome_user_nickname], nil)
-      Pleroma.Config.put([:instance, :welcome_message], nil)
     end
 
     test "it requires an email, name, nickname and password, bio is optional" do
@@ -337,15 +388,8 @@ test "it ensures info is not nil" do
       email: "email@example.com"
     }
 
-    setup do
-      setting = Pleroma.Config.get([:instance, :account_activation_required])
-
-      unless setting do
-        Pleroma.Config.put([:instance, :account_activation_required], true)
-        on_exit(fn -> Pleroma.Config.put([:instance, :account_activation_required], setting) end)
-      end
-
-      :ok
+    clear_config([:instance, :account_activation_required]) do
+      Pleroma.Config.put([:instance, :account_activation_required], true)
     end
 
     test "it creates unconfirmed user" do
@@ -992,6 +1036,8 @@ test "hide a user's statuses from timelines and notifications" do
       [user: user]
     end
 
+    clear_config([:instance, :federating])
+
     test ".delete_user_activities deletes all create activities", %{user: user} do
       {:ok, activity} = CommonAPI.post(user, %{"status" => "2hu"})
 
@@ -1042,9 +1088,7 @@ test "it deletes a user, all follow relationships and all activities", %{user: u
                    Pleroma.Web.ActivityPub.Publisher,
                    [:passthrough],
                    [] do
-      config_path = [:instance, :federating]
-      initial_setting = Pleroma.Config.get(config_path)
-      Pleroma.Config.put(config_path, true)
+      Pleroma.Config.put([:instance, :federating], true)
 
       {:ok, follower} = User.get_or_fetch_by_ap_id("http://mastodon.example.org/users/admin")
       {:ok, _} = User.follow(follower, user)
@@ -1056,8 +1100,6 @@ test "it deletes a user, all follow relationships and all activities", %{user: u
                  inbox: "http://mastodon.example.org/inbox"
                })
              )
-
-      Pleroma.Config.put(config_path, initial_setting)
     end
   end
 
@@ -1123,8 +1165,6 @@ test "auth_active?/1 works correctly" do
     refute User.auth_active?(local_user)
     assert User.auth_active?(confirmed_user)
     assert User.auth_active?(remote_user)
-
-    Pleroma.Config.put([:instance, :account_activation_required], false)
   end
 
   describe "superuser?/1" do
@@ -1169,8 +1209,6 @@ test "returns false when the account is unauthenticated and auth is required" do
       other_user = insert(:user, local: true)
 
       refute User.visible_for?(user, other_user)
-
-      Pleroma.Config.put([:instance, :account_activation_required], false)
     end
 
     test "returns true when the account is unauthenticated and auth is not required" do
@@ -1187,8 +1225,6 @@ test "returns true when the account is unauthenticated and being viewed by a pri
       other_user = insert(:user, local: true, info: %{is_admin: true})
 
       assert User.visible_for?(user, other_user)
-
-      Pleroma.Config.put([:instance, :account_activation_required], false)
     end
   end
 
@@ -1501,10 +1537,7 @@ test "performs update cache if user updated" do
   end
 
   describe "following/followers synchronization" do
-    setup do
-      sync = Pleroma.Config.get([:instance, :external_user_synchronization])
-      on_exit(fn -> Pleroma.Config.put([:instance, :external_user_synchronization], sync) end)
-    end
+    clear_config([:instance, :external_user_synchronization])
 
     test "updates the counters normally on following/getting a follow when disabled" do
       Pleroma.Config.put([:instance, :external_user_synchronization], false)
diff --git a/test/web/activity_pub/activity_pub_controller_test.exs b/test/web/activity_pub/activity_pub_controller_test.exs
index 251055ee1..77f5e39fa 100644
--- a/test/web/activity_pub/activity_pub_controller_test.exs
+++ b/test/web/activity_pub/activity_pub_controller_test.exs
@@ -16,17 +16,16 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubControllerTest do
 
   setup_all do
     Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
-
-    config_path = [:instance, :federating]
-    initial_setting = Pleroma.Config.get(config_path)
-
-    Pleroma.Config.put(config_path, true)
-    on_exit(fn -> Pleroma.Config.put(config_path, initial_setting) end)
-
     :ok
   end
 
+  clear_config_all([:instance, :federating],
+    do: Pleroma.Config.put([:instance, :federating], true)
+  )
+
   describe "/relay" do
+    clear_config([:instance, :allow_relay])
+
     test "with the relay active, it returns the relay user", %{conn: conn} do
       res =
         conn
@@ -43,8 +42,6 @@ test "with the relay disabled, it returns 404", %{conn: conn} do
       |> get(activity_pub_path(conn, :relay))
       |> json_response(404)
       |> assert
-
-      Pleroma.Config.put([:instance, :allow_relay], true)
     end
   end
 
diff --git a/test/web/activity_pub/activity_pub_test.exs b/test/web/activity_pub/activity_pub_test.exs
index d723f331f..f20cd2840 100644
--- a/test/web/activity_pub/activity_pub_test.exs
+++ b/test/web/activity_pub/activity_pub_test.exs
@@ -538,6 +538,29 @@ test "doesn't return muted activities" do
     assert Enum.member?(activities, activity_one)
   end
 
+  test "doesn't return thread muted activities" do
+    user = insert(:user)
+    _activity_one = insert(:note_activity)
+    note_two = insert(:note, data: %{"context" => "suya.."})
+    activity_two = insert(:note_activity, note: note_two)
+
+    {:ok, _activity_two} = CommonAPI.add_mute(user, activity_two)
+
+    assert [_activity_one] = ActivityPub.fetch_activities([], %{"muting_user" => user})
+  end
+
+  test "returns thread muted activities when with_muted is set" do
+    user = insert(:user)
+    _activity_one = insert(:note_activity)
+    note_two = insert(:note, data: %{"context" => "suya.."})
+    activity_two = insert(:note_activity, note: note_two)
+
+    {:ok, activity_two} = CommonAPI.add_mute(user, activity_two)
+
+    assert [_activity_two, _activity_one] =
+             ActivityPub.fetch_activities([], %{"muting_user" => user, "with_muted" => true})
+  end
+
   test "does include announces on request" do
     activity_three = insert(:note_activity)
     user = insert(:user)
diff --git a/test/web/activity_pub/mrf/mrf_test.exs b/test/web/activity_pub/mrf/mrf_test.exs
index 19e172939..04709df17 100644
--- a/test/web/activity_pub/mrf/mrf_test.exs
+++ b/test/web/activity_pub/mrf/mrf_test.exs
@@ -1,5 +1,6 @@
 defmodule Pleroma.Web.ActivityPub.MRFTest do
   use ExUnit.Case, async: true
+  use Pleroma.Tests.Helpers
   alias Pleroma.Web.ActivityPub.MRF
 
   test "subdomains_regex/1" do
@@ -59,6 +60,8 @@ test "matches are case-insensitive" do
   end
 
   describe "describe/0" do
+    clear_config([:instance, :rewrite_policy])
+
     test "it works as expected with noop policy" do
       expected = %{
         mrf_policies: ["NoOpPolicy"],
@@ -69,7 +72,6 @@ test "it works as expected with noop policy" do
     end
 
     test "it works as expected with mock policy" do
-      config = Pleroma.Config.get([:instance, :rewrite_policy])
       Pleroma.Config.put([:instance, :rewrite_policy], [MRFModuleMock])
 
       expected = %{
@@ -79,8 +81,6 @@ test "it works as expected with mock policy" do
       }
 
       {:ok, ^expected} = MRF.describe()
-
-      Pleroma.Config.put([:instance, :rewrite_policy], config)
     end
   end
 end
diff --git a/test/web/activity_pub/mrf/reject_non_public_test.exs b/test/web/activity_pub/mrf/reject_non_public_test.exs
index fdf6b245e..fc1d190bb 100644
--- a/test/web/activity_pub/mrf/reject_non_public_test.exs
+++ b/test/web/activity_pub/mrf/reject_non_public_test.exs
@@ -8,12 +8,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.RejectNonPublicTest do
 
   alias Pleroma.Web.ActivityPub.MRF.RejectNonPublic
 
-  setup do
-    policy = Pleroma.Config.get([:mrf_rejectnonpublic])
-    on_exit(fn -> Pleroma.Config.put([:mrf_rejectnonpublic], policy) end)
-
-    :ok
-  end
+  clear_config([:mrf_rejectnonpublic])
 
   describe "public message" do
     test "it's allowed when address is public" do
diff --git a/test/web/activity_pub/mrf/simple_policy_test.exs b/test/web/activity_pub/mrf/simple_policy_test.exs
index 8e86d2219..7203b27da 100644
--- a/test/web/activity_pub/mrf/simple_policy_test.exs
+++ b/test/web/activity_pub/mrf/simple_policy_test.exs
@@ -8,9 +8,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
   alias Pleroma.Config
   alias Pleroma.Web.ActivityPub.MRF.SimplePolicy
 
-  setup do
-    orig = Config.get!(:mrf_simple)
-
+  clear_config([:mrf_simple]) do
     Config.put(:mrf_simple,
       media_removal: [],
       media_nsfw: [],
@@ -21,10 +19,6 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
       avatar_removal: [],
       banner_removal: []
     )
-
-    on_exit(fn ->
-      Config.put(:mrf_simple, orig)
-    end)
   end
 
   describe "when :media_removal" do
diff --git a/test/web/activity_pub/mrf/user_allowlist_policy_test.exs b/test/web/activity_pub/mrf/user_allowlist_policy_test.exs
index 6519e2398..72084c0fd 100644
--- a/test/web/activity_pub/mrf/user_allowlist_policy_test.exs
+++ b/test/web/activity_pub/mrf/user_allowlist_policy_test.exs
@@ -7,12 +7,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.UserAllowListPolicyTest do
 
   alias Pleroma.Web.ActivityPub.MRF.UserAllowListPolicy
 
-  setup do
-    policy = Pleroma.Config.get([:mrf_user_allowlist]) || []
-    on_exit(fn -> Pleroma.Config.put([:mrf_user_allowlist], policy) end)
-
-    :ok
-  end
+  clear_config([:mrf_user_allowlist, :localhost])
 
   test "pass filter if allow list is empty" do
     actor = insert(:user)
diff --git a/test/web/activity_pub/mrf/vocabulary_policy_test.exs b/test/web/activity_pub/mrf/vocabulary_policy_test.exs
index c3b11d7a1..38309f9f1 100644
--- a/test/web/activity_pub/mrf/vocabulary_policy_test.exs
+++ b/test/web/activity_pub/mrf/vocabulary_policy_test.exs
@@ -8,8 +8,9 @@ defmodule Pleroma.Web.ActivityPub.MRF.VocabularyPolicyTest do
   alias Pleroma.Web.ActivityPub.MRF.VocabularyPolicy
 
   describe "accept" do
+    clear_config([:mrf_vocabulary, :accept])
+
     test "it accepts based on parent activity type" do
-      config = Pleroma.Config.get([:mrf_vocabulary, :accept])
       Pleroma.Config.put([:mrf_vocabulary, :accept], ["Like"])
 
       message = %{
@@ -18,12 +19,9 @@ test "it accepts based on parent activity type" do
       }
 
       {:ok, ^message} = VocabularyPolicy.filter(message)
-
-      Pleroma.Config.put([:mrf_vocabulary, :accept], config)
     end
 
     test "it accepts based on child object type" do
-      config = Pleroma.Config.get([:mrf_vocabulary, :accept])
       Pleroma.Config.put([:mrf_vocabulary, :accept], ["Create", "Note"])
 
       message = %{
@@ -35,12 +33,9 @@ test "it accepts based on child object type" do
       }
 
       {:ok, ^message} = VocabularyPolicy.filter(message)
-
-      Pleroma.Config.put([:mrf_vocabulary, :accept], config)
     end
 
     test "it does not accept disallowed child objects" do
-      config = Pleroma.Config.get([:mrf_vocabulary, :accept])
       Pleroma.Config.put([:mrf_vocabulary, :accept], ["Create", "Note"])
 
       message = %{
@@ -52,12 +47,9 @@ test "it does not accept disallowed child objects" do
       }
 
       {:reject, nil} = VocabularyPolicy.filter(message)
-
-      Pleroma.Config.put([:mrf_vocabulary, :accept], config)
     end
 
     test "it does not accept disallowed parent types" do
-      config = Pleroma.Config.get([:mrf_vocabulary, :accept])
       Pleroma.Config.put([:mrf_vocabulary, :accept], ["Announce", "Note"])
 
       message = %{
@@ -69,14 +61,13 @@ test "it does not accept disallowed parent types" do
       }
 
       {:reject, nil} = VocabularyPolicy.filter(message)
-
-      Pleroma.Config.put([:mrf_vocabulary, :accept], config)
     end
   end
 
   describe "reject" do
+    clear_config([:mrf_vocabulary, :reject])
+
     test "it rejects based on parent activity type" do
-      config = Pleroma.Config.get([:mrf_vocabulary, :reject])
       Pleroma.Config.put([:mrf_vocabulary, :reject], ["Like"])
 
       message = %{
@@ -85,12 +76,9 @@ test "it rejects based on parent activity type" do
       }
 
       {:reject, nil} = VocabularyPolicy.filter(message)
-
-      Pleroma.Config.put([:mrf_vocabulary, :reject], config)
     end
 
     test "it rejects based on child object type" do
-      config = Pleroma.Config.get([:mrf_vocabulary, :reject])
       Pleroma.Config.put([:mrf_vocabulary, :reject], ["Note"])
 
       message = %{
@@ -102,12 +90,9 @@ test "it rejects based on child object type" do
       }
 
       {:reject, nil} = VocabularyPolicy.filter(message)
-
-      Pleroma.Config.put([:mrf_vocabulary, :reject], config)
     end
 
     test "it passes through objects that aren't disallowed" do
-      config = Pleroma.Config.get([:mrf_vocabulary, :reject])
       Pleroma.Config.put([:mrf_vocabulary, :reject], ["Like"])
 
       message = %{
@@ -116,8 +101,6 @@ test "it passes through objects that aren't disallowed" do
       }
 
       {:ok, ^message} = VocabularyPolicy.filter(message)
-
-      Pleroma.Config.put([:mrf_vocabulary, :reject], config)
     end
   end
 end
diff --git a/test/web/admin_api/admin_api_controller_test.exs b/test/web/admin_api/admin_api_controller_test.exs
index bcbc18639..844cd0732 100644
--- a/test/web/admin_api/admin_api_controller_test.exs
+++ b/test/web/admin_api/admin_api_controller_test.exs
@@ -294,20 +294,17 @@ test "returns 403 when requested by a non-admin", %{conn: conn} do
 
   describe "POST /api/pleroma/admin/email_invite, with valid config" do
     setup do
-      registrations_open = Pleroma.Config.get([:instance, :registrations_open])
-      invites_enabled = Pleroma.Config.get([:instance, :invites_enabled])
-      Pleroma.Config.put([:instance, :registrations_open], false)
-      Pleroma.Config.put([:instance, :invites_enabled], true)
-
-      on_exit(fn ->
-        Pleroma.Config.put([:instance, :registrations_open], registrations_open)
-        Pleroma.Config.put([:instance, :invites_enabled], invites_enabled)
-        :ok
-      end)
-
       [user: insert(:user, info: %{is_admin: true})]
     end
 
+    clear_config([:instance, :registrations_open]) do
+      Pleroma.Config.put([:instance, :registrations_open], false)
+    end
+
+    clear_config([:instance, :invites_enabled]) do
+      Pleroma.Config.put([:instance, :invites_enabled], true)
+    end
+
     test "sends invitation and returns 204", %{conn: conn, user: user} do
       recipient_email = "foo@bar.com"
       recipient_name = "J. D."
@@ -360,18 +357,13 @@ test "it returns 403 if requested by a non-admin", %{conn: conn} do
       [user: insert(:user, info: %{is_admin: true})]
     end
 
+    clear_config([:instance, :registrations_open])
+    clear_config([:instance, :invites_enabled])
+
     test "it returns 500 if `invites_enabled` is not enabled", %{conn: conn, user: user} do
-      registrations_open = Pleroma.Config.get([:instance, :registrations_open])
-      invites_enabled = Pleroma.Config.get([:instance, :invites_enabled])
       Pleroma.Config.put([:instance, :registrations_open], false)
       Pleroma.Config.put([:instance, :invites_enabled], false)
 
-      on_exit(fn ->
-        Pleroma.Config.put([:instance, :registrations_open], registrations_open)
-        Pleroma.Config.put([:instance, :invites_enabled], invites_enabled)
-        :ok
-      end)
-
       conn =
         conn
         |> assign(:user, user)
@@ -381,17 +373,9 @@ test "it returns 500 if `invites_enabled` is not enabled", %{conn: conn, user: u
     end
 
     test "it returns 500 if `registrations_open` is enabled", %{conn: conn, user: user} do
-      registrations_open = Pleroma.Config.get([:instance, :registrations_open])
-      invites_enabled = Pleroma.Config.get([:instance, :invites_enabled])
       Pleroma.Config.put([:instance, :registrations_open], true)
       Pleroma.Config.put([:instance, :invites_enabled], true)
 
-      on_exit(fn ->
-        Pleroma.Config.put([:instance, :registrations_open], registrations_open)
-        Pleroma.Config.put([:instance, :invites_enabled], invites_enabled)
-        :ok
-      end)
-
       conn =
         conn
         |> assign(:user, user)
@@ -1402,17 +1386,13 @@ test "with settings in db", %{conn: conn} do
         :ok = File.rm(temp_file)
       end)
 
-      dynamic = Pleroma.Config.get([:instance, :dynamic_configuration])
-
-      Pleroma.Config.put([:instance, :dynamic_configuration], true)
-
-      on_exit(fn ->
-        Pleroma.Config.put([:instance, :dynamic_configuration], dynamic)
-      end)
-
       %{conn: assign(conn, :user, admin)}
     end
 
+    clear_config([:instance, :dynamic_configuration]) do
+      Pleroma.Config.put([:instance, :dynamic_configuration], true)
+    end
+
     test "create new config setting in db", %{conn: conn} do
       conn =
         post(conn, "/api/pleroma/admin/config", %{
@@ -1961,17 +1941,13 @@ test "delete part of settings by atom subkeys", %{conn: conn} do
         :ok = File.rm(temp_file)
       end)
 
-      dynamic = Pleroma.Config.get([:instance, :dynamic_configuration])
-
-      Pleroma.Config.put([:instance, :dynamic_configuration], true)
-
-      on_exit(fn ->
-        Pleroma.Config.put([:instance, :dynamic_configuration], dynamic)
-      end)
-
       %{conn: assign(conn, :user, admin), admin: admin}
     end
 
+    clear_config([:instance, :dynamic_configuration]) do
+      Pleroma.Config.put([:instance, :dynamic_configuration], true)
+    end
+
     test "transfer settings to DB and to file", %{conn: conn, admin: admin} do
       assert Pleroma.Repo.all(Pleroma.Web.AdminAPI.Config) == []
       conn = get(conn, "/api/pleroma/admin/config/migrate_to_db")
diff --git a/test/web/common_api/common_api_test.exs b/test/web/common_api/common_api_test.exs
index 16b3f121d..bcbaad665 100644
--- a/test/web/common_api/common_api_test.exs
+++ b/test/web/common_api/common_api_test.exs
@@ -5,18 +5,66 @@
 defmodule Pleroma.Web.CommonAPITest do
   use Pleroma.DataCase
   alias Pleroma.Activity
+  alias Pleroma.Conversation.Participation
   alias Pleroma.Object
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.Visibility
   alias Pleroma.Web.CommonAPI
 
   import Pleroma.Factory
 
+  clear_config([:instance, :safe_dm_mentions])
+  clear_config([:instance, :limit])
+  clear_config([:instance, :max_pinned_statuses])
+
+  test "when replying to a conversation / participation, it will set the correct context id even if no explicit reply_to is given" do
+    user = insert(:user)
+    {:ok, activity} = CommonAPI.post(user, %{"status" => ".", "visibility" => "direct"})
+
+    [participation] = Participation.for_user(user)
+
+    {:ok, convo_reply} =
+      CommonAPI.post(user, %{"status" => ".", "in_reply_to_conversation_id" => participation.id})
+
+    assert Visibility.is_direct?(convo_reply)
+
+    assert activity.data["context"] == convo_reply.data["context"]
+  end
+
+  test "when replying to a conversation / participation, it only mentions the recipients explicitly declared in the participation" do
+    har = insert(:user)
+    jafnhar = insert(:user)
+    tridi = insert(:user)
+
+    {:ok, activity} =
+      CommonAPI.post(har, %{
+        "status" => "@#{jafnhar.nickname} hey",
+        "visibility" => "direct"
+      })
+
+    assert har.ap_id in activity.recipients
+    assert jafnhar.ap_id in activity.recipients
+
+    [participation] = Participation.for_user(har)
+
+    {:ok, activity} =
+      CommonAPI.post(har, %{
+        "status" => "I don't really like @#{tridi.nickname}",
+        "visibility" => "direct",
+        "in_reply_to_status_id" => activity.id,
+        "in_reply_to_conversation_id" => participation.id
+      })
+
+    assert har.ap_id in activity.recipients
+    assert jafnhar.ap_id in activity.recipients
+    refute tridi.ap_id in activity.recipients
+  end
+
   test "with the safe_dm_mention option set, it does not mention people beyond the initial tags" do
     har = insert(:user)
     jafnhar = insert(:user)
     tridi = insert(:user)
-    option = Pleroma.Config.get([:instance, :safe_dm_mentions])
     Pleroma.Config.put([:instance, :safe_dm_mentions], true)
 
     {:ok, activity} =
@@ -27,7 +75,6 @@ test "with the safe_dm_mention option set, it does not mention people beyond the
 
     refute tridi.ap_id in activity.recipients
     assert jafnhar.ap_id in activity.recipients
-    Pleroma.Config.put([:instance, :safe_dm_mentions], option)
   end
 
   test "it de-duplicates tags" do
@@ -150,15 +197,12 @@ test "it returns error when status is empty and no attachments" do
     end
 
     test "it returns error when character limit is exceeded" do
-      limit = Pleroma.Config.get([:instance, :limit])
       Pleroma.Config.put([:instance, :limit], 5)
 
       user = insert(:user)
 
       assert {:error, "The status is over the character limit"} =
                CommonAPI.post(user, %{"status" => "foobar"})
-
-      Pleroma.Config.put([:instance, :limit], limit)
     end
   end
 
diff --git a/test/web/common_api/common_api_utils_test.exs b/test/web/common_api/common_api_utils_test.exs
index 5989d7d29..c281dd1f1 100644
--- a/test/web/common_api/common_api_utils_test.exs
+++ b/test/web/common_api/common_api_utils_test.exs
@@ -239,7 +239,7 @@ test "for public posts, not a reply" do
       mentioned_user = insert(:user)
       mentions = [mentioned_user.ap_id]
 
-      {to, cc} = Utils.get_to_and_cc(user, mentions, nil, "public")
+      {to, cc} = Utils.get_to_and_cc(user, mentions, nil, "public", nil)
 
       assert length(to) == 2
       assert length(cc) == 1
@@ -256,7 +256,7 @@ test "for public posts, a reply" do
       {:ok, activity} = CommonAPI.post(third_user, %{"status" => "uguu"})
       mentions = [mentioned_user.ap_id]
 
-      {to, cc} = Utils.get_to_and_cc(user, mentions, activity, "public")
+      {to, cc} = Utils.get_to_and_cc(user, mentions, activity, "public", nil)
 
       assert length(to) == 3
       assert length(cc) == 1
@@ -272,7 +272,7 @@ test "for unlisted posts, not a reply" do
       mentioned_user = insert(:user)
       mentions = [mentioned_user.ap_id]
 
-      {to, cc} = Utils.get_to_and_cc(user, mentions, nil, "unlisted")
+      {to, cc} = Utils.get_to_and_cc(user, mentions, nil, "unlisted", nil)
 
       assert length(to) == 2
       assert length(cc) == 1
@@ -289,7 +289,7 @@ test "for unlisted posts, a reply" do
       {:ok, activity} = CommonAPI.post(third_user, %{"status" => "uguu"})
       mentions = [mentioned_user.ap_id]
 
-      {to, cc} = Utils.get_to_and_cc(user, mentions, activity, "unlisted")
+      {to, cc} = Utils.get_to_and_cc(user, mentions, activity, "unlisted", nil)
 
       assert length(to) == 3
       assert length(cc) == 1
@@ -305,7 +305,7 @@ test "for private posts, not a reply" do
       mentioned_user = insert(:user)
       mentions = [mentioned_user.ap_id]
 
-      {to, cc} = Utils.get_to_and_cc(user, mentions, nil, "private")
+      {to, cc} = Utils.get_to_and_cc(user, mentions, nil, "private", nil)
       assert length(to) == 2
       assert length(cc) == 0
 
@@ -320,7 +320,7 @@ test "for private posts, a reply" do
       {:ok, activity} = CommonAPI.post(third_user, %{"status" => "uguu"})
       mentions = [mentioned_user.ap_id]
 
-      {to, cc} = Utils.get_to_and_cc(user, mentions, activity, "private")
+      {to, cc} = Utils.get_to_and_cc(user, mentions, activity, "private", nil)
 
       assert length(to) == 3
       assert length(cc) == 0
@@ -335,7 +335,7 @@ test "for direct posts, not a reply" do
       mentioned_user = insert(:user)
       mentions = [mentioned_user.ap_id]
 
-      {to, cc} = Utils.get_to_and_cc(user, mentions, nil, "direct")
+      {to, cc} = Utils.get_to_and_cc(user, mentions, nil, "direct", nil)
 
       assert length(to) == 1
       assert length(cc) == 0
@@ -350,7 +350,7 @@ test "for direct posts, a reply" do
       {:ok, activity} = CommonAPI.post(third_user, %{"status" => "uguu"})
       mentions = [mentioned_user.ap_id]
 
-      {to, cc} = Utils.get_to_and_cc(user, mentions, activity, "direct")
+      {to, cc} = Utils.get_to_and_cc(user, mentions, activity, "direct", nil)
 
       assert length(to) == 2
       assert length(cc) == 0
diff --git a/test/web/digest_email_worker_test.exs b/test/web/digest_email_worker_test.exs
new file mode 100644
index 000000000..15002330f
--- /dev/null
+++ b/test/web/digest_email_worker_test.exs
@@ -0,0 +1,31 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.DigestEmailWorkerTest do
+  use Pleroma.DataCase
+  import Pleroma.Factory
+
+  alias Pleroma.DigestEmailWorker
+  alias Pleroma.User
+  alias Pleroma.Web.CommonAPI
+
+  test "it sends digest emails" do
+    user = insert(:user)
+
+    date =
+      Timex.now()
+      |> Timex.shift(days: -10)
+      |> Timex.to_naive_datetime()
+
+    user2 = insert(:user, last_digest_emailed_at: date)
+    User.switch_email_notifications(user2, "digest", true)
+    CommonAPI.post(user, %{"status" => "hey @#{user2.nickname}!"})
+
+    DigestEmailWorker.perform()
+
+    assert_received {:email, email}
+    assert email.to == [{user2.name, user2.email}]
+    assert email.subject == "Your digest from #{Pleroma.Config.get(:instance)[:name]}"
+  end
+end
diff --git a/test/web/federator_test.exs b/test/web/federator_test.exs
index 73cfaa8f1..09e54533f 100644
--- a/test/web/federator_test.exs
+++ b/test/web/federator_test.exs
@@ -13,15 +13,17 @@ defmodule Pleroma.Web.FederatorTest do
   setup_all do
     Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
 
-    config_path = [:instance, :federating]
-    initial_setting = Pleroma.Config.get(config_path)
-
-    Pleroma.Config.put(config_path, true)
-    on_exit(fn -> Pleroma.Config.put(config_path, initial_setting) end)
-
     :ok
   end
 
+  clear_config_all([:instance, :federating]) do
+    Pleroma.Config.put([:instance, :federating], true)
+  end
+
+  clear_config([:instance, :allow_relay])
+  clear_config([:instance, :rewrite_policy])
+  clear_config([:mrf_keyword])
+
   describe "Publisher.perform" do
     test "call `perform` with unknown task" do
       assert {
@@ -67,8 +69,6 @@ test "with relays deactivated, it does not publish to the relay", %{
       end
 
       refute_received :relay_publish
-
-      Pleroma.Config.put([:instance, :allow_relay], true)
     end
   end
 
@@ -231,19 +231,18 @@ test "rejects incoming AP docs with incorrect origin" do
     end
 
     test "it does not crash if MRF rejects the post" do
-      policies = Pleroma.Config.get([:instance, :rewrite_policy])
-      mrf_keyword_policy = Pleroma.Config.get(:mrf_keyword)
       Pleroma.Config.put([:mrf_keyword, :reject], ["lain"])
-      Pleroma.Config.put([:instance, :rewrite_policy], Pleroma.Web.ActivityPub.MRF.KeywordPolicy)
+
+      Pleroma.Config.put(
+        [:instance, :rewrite_policy],
+        Pleroma.Web.ActivityPub.MRF.KeywordPolicy
+      )
 
       params =
         File.read!("test/fixtures/mastodon-post-activity.json")
         |> Poison.decode!()
 
       assert Federator.incoming_ap_doc(params) == :error
-
-      Pleroma.Config.put([:instance, :rewrite_policy], policies)
-      Pleroma.Config.put(:mrf_keyword, mrf_keyword_policy)
     end
   end
 end
diff --git a/test/web/instances/instance_test.exs b/test/web/instances/instance_test.exs
index d28730994..3fd011fd3 100644
--- a/test/web/instances/instance_test.exs
+++ b/test/web/instances/instance_test.exs
@@ -10,14 +10,8 @@ defmodule Pleroma.Instances.InstanceTest do
 
   import Pleroma.Factory
 
-  setup_all do
-    config_path = [:instance, :federation_reachability_timeout_days]
-    initial_setting = Pleroma.Config.get(config_path)
-
-    Pleroma.Config.put(config_path, 1)
-    on_exit(fn -> Pleroma.Config.put(config_path, initial_setting) end)
-
-    :ok
+  clear_config_all([:instance, :federation_reachability_timeout_days]) do
+    Pleroma.Config.put([:instance, :federation_reachability_timeout_days], 1)
   end
 
   describe "set_reachable/1" do
diff --git a/test/web/instances/instances_test.exs b/test/web/instances/instances_test.exs
index f0d84edea..dea8e2aea 100644
--- a/test/web/instances/instances_test.exs
+++ b/test/web/instances/instances_test.exs
@@ -7,14 +7,8 @@ defmodule Pleroma.InstancesTest do
 
   use Pleroma.DataCase
 
-  setup_all do
-    config_path = [:instance, :federation_reachability_timeout_days]
-    initial_setting = Pleroma.Config.get(config_path)
-
-    Pleroma.Config.put(config_path, 1)
-    on_exit(fn -> Pleroma.Config.put(config_path, initial_setting) end)
-
-    :ok
+  clear_config_all([:instance, :federation_reachability_timeout_days]) do
+    Pleroma.Config.put([:instance, :federation_reachability_timeout_days], 1)
   end
 
   describe "reachable?/1" do
diff --git a/test/web/mastodon_api/conversation_view_test.exs b/test/web/mastodon_api/conversation_view_test.exs
new file mode 100644
index 000000000..a2a880705
--- /dev/null
+++ b/test/web/mastodon_api/conversation_view_test.exs
@@ -0,0 +1,34 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.MastodonAPI.ConversationViewTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.Conversation.Participation
+  alias Pleroma.Web.CommonAPI
+  alias Pleroma.Web.MastodonAPI.ConversationView
+
+  import Pleroma.Factory
+
+  test "represents a Mastodon Conversation entity" do
+    user = insert(:user)
+    other_user = insert(:user)
+
+    {:ok, activity} =
+      CommonAPI.post(user, %{"status" => "hey @#{other_user.nickname}", "visibility" => "direct"})
+
+    [participation] = Participation.for_user_with_last_activity_id(user)
+
+    assert participation
+
+    conversation =
+      ConversationView.render("participation.json", %{participation: participation, for: user})
+
+    assert conversation.id == participation.id |> to_string()
+    assert conversation.last_status.id == activity.id
+
+    assert [account] = conversation.accounts
+    assert account.id == other_user.id
+  end
+end
diff --git a/test/web/mastodon_api/mastodon_api_controller_test.exs b/test/web/mastodon_api/mastodon_api_controller_test.exs
index 2febe8b3a..77430e9c9 100644
--- a/test/web/mastodon_api/mastodon_api_controller_test.exs
+++ b/test/web/mastodon_api/mastodon_api_controller_test.exs
@@ -33,6 +33,9 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIControllerTest do
     :ok
   end
 
+  clear_config([:instance, :public])
+  clear_config([:rich_media, :enabled])
+
   test "the home timeline", %{conn: conn} do
     user = insert(:user)
     following = insert(:user)
@@ -86,13 +89,8 @@ test "the public timeline", %{conn: conn} do
   end
 
   test "the public timeline when public is set to false", %{conn: conn} do
-    public = Config.get([:instance, :public])
     Config.put([:instance, :public], false)
 
-    on_exit(fn ->
-      Config.put([:instance, :public], public)
-    end)
-
     assert conn
            |> get("/api/v1/timelines/public", %{"local" => "False"})
            |> json_response(403) == %{"error" => "This resource requires authentication."}
@@ -261,7 +259,6 @@ test "posting a status with OGP link preview", %{conn: conn} do
 
       assert %{"id" => id, "card" => %{"title" => "The Rock"}} = json_response(conn, 200)
       assert Activity.get_by_id(id)
-      Config.put([:rich_media, :enabled], false)
     end
 
     test "posting a direct status", %{conn: conn} do
@@ -1634,14 +1631,6 @@ test "returns the relationships for the current user", %{conn: conn} do
 
   describe "media upload" do
     setup do
-      upload_config = Config.get([Pleroma.Upload])
-      proxy_config = Config.get([:media_proxy])
-
-      on_exit(fn ->
-        Config.put([Pleroma.Upload], upload_config)
-        Config.put([:media_proxy], proxy_config)
-      end)
-
       user = insert(:user)
 
       conn =
@@ -1657,6 +1646,9 @@ test "returns the relationships for the current user", %{conn: conn} do
       [conn: conn, image: image]
     end
 
+    clear_config([:media_proxy])
+    clear_config([Pleroma.Upload])
+
     test "returns uploaded image", %{conn: conn, image: image} do
       desc = "Description of the image"
 
@@ -2624,7 +2616,7 @@ test "get instance stats", %{conn: conn} do
       |> Changeset.put_embed(:info, info_change)
       |> User.update_and_set_cache()
 
-    Pleroma.Stats.update_stats()
+    Pleroma.Stats.force_update()
 
     conn = get(conn, "/api/v1/instance")
 
@@ -2642,7 +2634,7 @@ test "get peers", %{conn: conn} do
     insert(:user, %{local: false, nickname: "u@peer1.com"})
     insert(:user, %{local: false, nickname: "u@peer2.com"})
 
-    Pleroma.Stats.update_stats()
+    Pleroma.Stats.force_update()
 
     conn = get(conn, "/api/v1/instance/peers")
 
@@ -2667,14 +2659,16 @@ test "put settings", %{conn: conn} do
 
   describe "pinned statuses" do
     setup do
-      Config.put([:instance, :max_pinned_statuses], 1)
-
       user = insert(:user)
       {:ok, activity} = CommonAPI.post(user, %{"status" => "HI!!!"})
 
       [user: user, activity: activity]
     end
 
+    clear_config([:instance, :max_pinned_statuses]) do
+      Config.put([:instance, :max_pinned_statuses], 1)
+    end
+
     test "returns pinned statuses", %{conn: conn, user: user, activity: activity} do
       {:ok, _} = CommonAPI.pin(activity.id, user)
 
@@ -2769,10 +2763,6 @@ test "max pinned statuses", %{conn: conn, user: user, activity: activity_one} do
     setup do
       Config.put([:rich_media, :enabled], true)
 
-      on_exit(fn ->
-        Config.put([:rich_media, :enabled], false)
-      end)
-
       user = insert(:user)
       %{user: user}
     end
@@ -3127,15 +3117,12 @@ test "redirects not logged-in users to the login page on private instances", %{
       conn: conn,
       path: path
     } do
-      is_public = Config.get([:instance, :public])
       Config.put([:instance, :public], false)
 
       conn = get(conn, path)
 
       assert conn.status == 302
       assert redirected_to(conn) == "/web/login"
-
-      Config.put([:instance, :public], is_public)
     end
 
     test "does not redirect logged in users to the login page", %{conn: conn, path: path} do
@@ -3910,13 +3897,6 @@ test "it returns 400 when user is not local", %{conn: conn, user: user} do
 
   describe "POST /api/v1/pleroma/accounts/confirmation_resend" do
     setup do
-      setting = Config.get([:instance, :account_activation_required])
-
-      unless setting do
-        Config.put([:instance, :account_activation_required], true)
-        on_exit(fn -> Config.put([:instance, :account_activation_required], setting) end)
-      end
-
       user = insert(:user)
       info_change = User.Info.confirmation_changeset(user.info, need_confirmation: true)
 
@@ -3931,6 +3911,10 @@ test "it returns 400 when user is not local", %{conn: conn, user: user} do
       [user: user]
     end
 
+    clear_config([:instance, :account_activation_required]) do
+      Config.put([:instance, :account_activation_required], true)
+    end
+
     test "resend account confirmation email", %{conn: conn, user: user} do
       conn
       |> assign(:user, user)
@@ -3953,9 +3937,6 @@ test "resend account confirmation email", %{conn: conn, user: user} do
     setup do
       user = insert(:user)
       other_user = insert(:user)
-      config = Config.get(:suggestions)
-      on_exit(fn -> Config.put(:suggestions, config) end)
-
       host = Config.get([Pleroma.Web.Endpoint, :url, :host])
       url500 = "http://test500?#{host}&#{user.nickname}"
       url200 = "http://test200?#{host}&#{user.nickname}"
@@ -3977,6 +3958,8 @@ test "resend account confirmation email", %{conn: conn, user: user} do
       [user: user, other_user: other_user]
     end
 
+    clear_config(:suggestions)
+
     test "returns empty result when suggestions disabled", %{conn: conn, user: user} do
       Config.put([:suggestions, :enabled], false)
 
diff --git a/test/web/mastodon_api/status_view_test.exs b/test/web/mastodon_api/status_view_test.exs
index 0b167f839..c983b494f 100644
--- a/test/web/mastodon_api/status_view_test.exs
+++ b/test/web/mastodon_api/status_view_test.exs
@@ -23,6 +23,21 @@ defmodule Pleroma.Web.MastodonAPI.StatusViewTest do
     :ok
   end
 
+  test "returns the direct conversation id when given the `with_conversation_id` option" do
+    user = insert(:user)
+
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "Hey @shp!", "visibility" => "direct"})
+
+    status =
+      StatusView.render("status.json",
+        activity: activity,
+        with_direct_conversation_id: true,
+        for: user
+      )
+
+    assert status[:pleroma][:direct_conversation_id]
+  end
+
   test "returns a temporary ap_id based user for activities missing db users" do
     user = insert(:user)
 
@@ -133,7 +148,8 @@ test "a note activity" do
         conversation_id: convo_id,
         in_reply_to_account_acct: nil,
         content: %{"text/plain" => HtmlSanitizeEx.strip_tags(object_data["content"])},
-        spoiler_text: %{"text/plain" => HtmlSanitizeEx.strip_tags(object_data["summary"])}
+        spoiler_text: %{"text/plain" => HtmlSanitizeEx.strip_tags(object_data["summary"])},
+        direct_conversation_id: nil
       }
     }
 
diff --git a/test/web/media_proxy/media_proxy_test.exs b/test/web/media_proxy/media_proxy_test.exs
index 0c94755df..79699cac5 100644
--- a/test/web/media_proxy/media_proxy_test.exs
+++ b/test/web/media_proxy/media_proxy_test.exs
@@ -4,14 +4,11 @@
 
 defmodule Pleroma.Web.MediaProxyTest do
   use ExUnit.Case
+  use Pleroma.Tests.Helpers
   import Pleroma.Web.MediaProxy
   alias Pleroma.Web.MediaProxy.MediaProxyController
 
-  setup do
-    enabled = Pleroma.Config.get([:media_proxy, :enabled])
-    on_exit(fn -> Pleroma.Config.put([:media_proxy, :enabled], enabled) end)
-    :ok
-  end
+  clear_config([:media_proxy, :enabled])
 
   describe "when enabled" do
     setup do
diff --git a/test/web/oauth/ldap_authorization_test.exs b/test/web/oauth/ldap_authorization_test.exs
index 0eb191c76..1cbe133b7 100644
--- a/test/web/oauth/ldap_authorization_test.exs
+++ b/test/web/oauth/ldap_authorization_test.exs
@@ -12,21 +12,12 @@ defmodule Pleroma.Web.OAuth.LDAPAuthorizationTest do
 
   @skip if !Code.ensure_loaded?(:eldap), do: :skip
 
-  setup_all do
-    ldap_authenticator =
-      Pleroma.Config.get(Pleroma.Web.Auth.Authenticator, Pleroma.Web.Auth.PleromaAuthenticator)
-
-    ldap_enabled = Pleroma.Config.get([:ldap, :enabled])
-
-    on_exit(fn ->
-      Pleroma.Config.put(Pleroma.Web.Auth.Authenticator, ldap_authenticator)
-      Pleroma.Config.put([:ldap, :enabled], ldap_enabled)
-    end)
-
-    Pleroma.Config.put(Pleroma.Web.Auth.Authenticator, Pleroma.Web.Auth.LDAPAuthenticator)
+  clear_config_all([:ldap, :enabled]) do
     Pleroma.Config.put([:ldap, :enabled], true)
+  end
 
-    :ok
+  clear_config_all(Pleroma.Web.Auth.Authenticator) do
+    Pleroma.Config.put(Pleroma.Web.Auth.Authenticator, Pleroma.Web.Auth.LDAPAuthenticator)
   end
 
   @tag @skip
diff --git a/test/web/oauth/oauth_controller_test.exs b/test/web/oauth/oauth_controller_test.exs
index 92e156347..b492c7794 100644
--- a/test/web/oauth/oauth_controller_test.exs
+++ b/test/web/oauth/oauth_controller_test.exs
@@ -11,23 +11,15 @@ defmodule Pleroma.Web.OAuth.OAuthControllerTest do
   alias Pleroma.Web.OAuth.OAuthController
   alias Pleroma.Web.OAuth.Token
 
-  @oauth_config_path [:oauth2, :issue_new_refresh_token]
   @session_opts [
     store: :cookie,
     key: "_test",
     signing_salt: "cooldude"
   ]
+  clear_config_all([:instance, :account_activation_required])
 
   describe "in OAuth consumer mode, " do
     setup do
-      oauth_consumer_strategies_path = [:auth, :oauth_consumer_strategies]
-      oauth_consumer_strategies = Pleroma.Config.get(oauth_consumer_strategies_path)
-      Pleroma.Config.put(oauth_consumer_strategies_path, ~w(twitter facebook))
-
-      on_exit(fn ->
-        Pleroma.Config.put(oauth_consumer_strategies_path, oauth_consumer_strategies)
-      end)
-
       [
         app: insert(:oauth_app),
         conn:
@@ -37,6 +29,13 @@ defmodule Pleroma.Web.OAuth.OAuthControllerTest do
       ]
     end
 
+    clear_config([:auth, :oauth_consumer_strategies]) do
+      Pleroma.Config.put(
+        [:auth, :oauth_consumer_strategies],
+        ~w(twitter facebook)
+      )
+    end
+
     test "GET /oauth/authorize renders auth forms, including OAuth consumer form", %{
       app: app,
       conn: conn
@@ -775,12 +774,7 @@ test "rejects token exchange with invalid client credentials" do
     end
 
     test "rejects token exchange for valid credentials belonging to unconfirmed user and confirmation is required" do
-      setting = Pleroma.Config.get([:instance, :account_activation_required])
-
-      unless setting do
-        Pleroma.Config.put([:instance, :account_activation_required], true)
-        on_exit(fn -> Pleroma.Config.put([:instance, :account_activation_required], setting) end)
-      end
+      Pleroma.Config.put([:instance, :account_activation_required], true)
 
       password = "testpassword"
       user = insert(:user, password_hash: Comeonin.Pbkdf2.hashpwsalt(password))
@@ -857,16 +851,10 @@ test "rejects an invalid authorization code" do
   end
 
   describe "POST /oauth/token - refresh token" do
-    setup do
-      oauth_token_config = Pleroma.Config.get(@oauth_config_path)
-
-      on_exit(fn ->
-        Pleroma.Config.get(@oauth_config_path, oauth_token_config)
-      end)
-    end
+    clear_config([:oauth2, :issue_new_refresh_token])
 
     test "issues a new access token with keep fresh token" do
-      Pleroma.Config.put(@oauth_config_path, true)
+      Pleroma.Config.put([:oauth2, :issue_new_refresh_token], true)
       user = insert(:user)
       app = insert(:oauth_app, scopes: ["read", "write"])
 
@@ -906,7 +894,7 @@ test "issues a new access token with keep fresh token" do
     end
 
     test "issues a new access token with new fresh token" do
-      Pleroma.Config.put(@oauth_config_path, false)
+      Pleroma.Config.put([:oauth2, :issue_new_refresh_token], false)
       user = insert(:user)
       app = insert(:oauth_app, scopes: ["read", "write"])
 
diff --git a/test/web/ostatus/ostatus_controller_test.exs b/test/web/ostatus/ostatus_controller_test.exs
index 9f756effb..095ae7041 100644
--- a/test/web/ostatus/ostatus_controller_test.exs
+++ b/test/web/ostatus/ostatus_controller_test.exs
@@ -15,16 +15,13 @@ defmodule Pleroma.Web.OStatus.OStatusControllerTest do
 
   setup_all do
     Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
-
-    config_path = [:instance, :federating]
-    initial_setting = Pleroma.Config.get(config_path)
-
-    Pleroma.Config.put(config_path, true)
-    on_exit(fn -> Pleroma.Config.put(config_path, initial_setting) end)
-
     :ok
   end
 
+  clear_config_all([:instance, :federating]) do
+    Pleroma.Config.put([:instance, :federating], true)
+  end
+
   describe "salmon_incoming" do
     test "decodes a salmon", %{conn: conn} do
       user = insert(:user)
diff --git a/test/web/pleroma_api/pleroma_api_controller_test.exs b/test/web/pleroma_api/pleroma_api_controller_test.exs
new file mode 100644
index 000000000..ed6b79727
--- /dev/null
+++ b/test/web/pleroma_api/pleroma_api_controller_test.exs
@@ -0,0 +1,94 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.PleromaAPI.PleromaAPIControllerTest do
+  use Pleroma.Web.ConnCase
+
+  alias Pleroma.Conversation.Participation
+  alias Pleroma.Repo
+  alias Pleroma.Web.CommonAPI
+
+  import Pleroma.Factory
+
+  test "/api/v1/pleroma/conversations/:id", %{conn: conn} do
+    user = insert(:user)
+    other_user = insert(:user)
+
+    {:ok, _activity} =
+      CommonAPI.post(user, %{"status" => "Hi @#{other_user.nickname}!", "visibility" => "direct"})
+
+    [participation] = Participation.for_user(other_user)
+
+    result =
+      conn
+      |> assign(:user, other_user)
+      |> get("/api/v1/pleroma/conversations/#{participation.id}")
+      |> json_response(200)
+
+    assert result["id"] == participation.id |> to_string()
+  end
+
+  test "/api/v1/pleroma/conversations/:id/statuses", %{conn: conn} do
+    user = insert(:user)
+    other_user = insert(:user)
+    third_user = insert(:user)
+
+    {:ok, _activity} =
+      CommonAPI.post(user, %{"status" => "Hi @#{third_user.nickname}!", "visibility" => "direct"})
+
+    {:ok, activity} =
+      CommonAPI.post(user, %{"status" => "Hi @#{other_user.nickname}!", "visibility" => "direct"})
+
+    [participation] = Participation.for_user(other_user)
+
+    {:ok, activity_two} =
+      CommonAPI.post(other_user, %{
+        "status" => "Hi!",
+        "in_reply_to_status_id" => activity.id,
+        "in_reply_to_conversation_id" => participation.id
+      })
+
+    result =
+      conn
+      |> assign(:user, other_user)
+      |> get("/api/v1/pleroma/conversations/#{participation.id}/statuses")
+      |> json_response(200)
+
+    assert length(result) == 2
+
+    id_one = activity.id
+    id_two = activity_two.id
+    assert [%{"id" => ^id_one}, %{"id" => ^id_two}] = result
+  end
+
+  test "PATCH /api/v1/pleroma/conversations/:id", %{conn: conn} do
+    user = insert(:user)
+    other_user = insert(:user)
+
+    {:ok, _activity} = CommonAPI.post(user, %{"status" => "Hi", "visibility" => "direct"})
+
+    [participation] = Participation.for_user(user)
+
+    participation = Repo.preload(participation, :recipients)
+
+    assert [user] == participation.recipients
+    assert other_user not in participation.recipients
+
+    result =
+      conn
+      |> assign(:user, user)
+      |> patch("/api/v1/pleroma/conversations/#{participation.id}", %{
+        "recipients" => [user.id, other_user.id]
+      })
+      |> json_response(200)
+
+    assert result["id"] == participation.id |> to_string
+
+    [participation] = Participation.for_user(user)
+    participation = Repo.preload(participation, :recipients)
+
+    assert user in participation.recipients
+    assert other_user in participation.recipients
+  end
+end
diff --git a/test/web/plugs/federating_plug_test.exs b/test/web/plugs/federating_plug_test.exs
index c01e01124..bb2e1687a 100644
--- a/test/web/plugs/federating_plug_test.exs
+++ b/test/web/plugs/federating_plug_test.exs
@@ -4,15 +4,7 @@
 
 defmodule Pleroma.Web.FederatingPlugTest do
   use Pleroma.Web.ConnCase
-
-  setup_all do
-    config_path = [:instance, :federating]
-    initial_setting = Pleroma.Config.get(config_path)
-
-    on_exit(fn -> Pleroma.Config.put(config_path, initial_setting) end)
-
-    :ok
-  end
+  clear_config_all([:instance, :federating])
 
   test "returns and halt the conn when federating is disabled" do
     Pleroma.Config.put([:instance, :federating], false)
diff --git a/test/web/rich_media/helpers_test.exs b/test/web/rich_media/helpers_test.exs
index 92198f3d9..48884319d 100644
--- a/test/web/rich_media/helpers_test.exs
+++ b/test/web/rich_media/helpers_test.exs
@@ -15,12 +15,12 @@ defmodule Pleroma.Web.RichMedia.HelpersTest do
 
   setup do
     mock(fn env -> apply(HttpRequestMock, :request, [env]) end)
-    rich_media = Config.get([:rich_media, :enabled])
-    on_exit(fn -> Config.put([:rich_media, :enabled], rich_media) end)
 
     :ok
   end
 
+  clear_config([:rich_media, :enabled])
+
   test "refuses to crawl incomplete URLs" do
     user = insert(:user)
 
diff --git a/test/web/streamer_test.exs b/test/web/streamer_test.exs
index d47b37efb..96fa7645f 100644
--- a/test/web/streamer_test.exs
+++ b/test/web/streamer_test.exs
@@ -11,15 +11,7 @@ defmodule Pleroma.Web.StreamerTest do
   alias Pleroma.Web.Streamer
   import Pleroma.Factory
 
-  setup do
-    skip_thread_containment = Pleroma.Config.get([:instance, :skip_thread_containment])
-
-    on_exit(fn ->
-      Pleroma.Config.put([:instance, :skip_thread_containment], skip_thread_containment)
-    end)
-
-    :ok
-  end
+  clear_config_all([:instance, :skip_thread_containment])
 
   describe "user streams" do
     setup do
@@ -414,6 +406,26 @@ test "it doesn't send muted reblogs" do
     Task.await(task)
   end
 
+  test "it doesn't send posts from muted threads" do
+    user = insert(:user)
+    user2 = insert(:user)
+    {:ok, user2, user, _activity} = CommonAPI.follow(user2, user)
+
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "super hot take"})
+
+    {:ok, activity} = CommonAPI.add_mute(user2, activity)
+
+    task = Task.async(fn -> refute_receive {:text, _}, 4_000 end)
+
+    Streamer.add_socket(
+      "user",
+      %{transport_pid: task.pid, assigns: %{user: user2}}
+    )
+
+    Streamer.stream("user", activity)
+    Task.await(task)
+  end
+
   describe "direct streams" do
     setup do
       GenServer.start(Streamer, %{}, name: Streamer)
diff --git a/test/web/twitter_api/twitter_api_controller_test.exs b/test/web/twitter_api/twitter_api_controller_test.exs
index 8bb8aa36d..8ef14b4c5 100644
--- a/test/web/twitter_api/twitter_api_controller_test.exs
+++ b/test/web/twitter_api/twitter_api_controller_test.exs
@@ -151,6 +151,7 @@ test "with credentials", %{conn: conn, user: user} do
 
   describe "GET /statuses/public_timeline.json" do
     setup [:valid_user]
+    clear_config([:instance, :public])
 
     test "returns statuses", %{conn: conn} do
       user = insert(:user)
@@ -173,8 +174,6 @@ test "returns 403 to unauthenticated request when the instance is not public", %
       conn
       |> get("/api/statuses/public_timeline.json")
       |> json_response(403)
-
-      Pleroma.Config.put([:instance, :public], true)
     end
 
     test "returns 200 to authenticated request when the instance is not public",
@@ -185,8 +184,6 @@ test "returns 200 to authenticated request when the instance is not public",
       |> with_credentials(user.nickname, "test")
       |> get("/api/statuses/public_timeline.json")
       |> json_response(200)
-
-      Pleroma.Config.put([:instance, :public], true)
     end
 
     test "returns 200 to unauthenticated request when the instance is public", %{conn: conn} do
@@ -220,6 +217,7 @@ test "returns 200 to authenticated request when the instance is public",
 
   describe "GET /statuses/public_and_external_timeline.json" do
     setup [:valid_user]
+    clear_config([:instance, :public])
 
     test "returns 403 to unauthenticated request when the instance is not public", %{conn: conn} do
       Pleroma.Config.put([:instance, :public], false)
@@ -227,8 +225,6 @@ test "returns 403 to unauthenticated request when the instance is not public", %
       conn
       |> get("/api/statuses/public_and_external_timeline.json")
       |> json_response(403)
-
-      Pleroma.Config.put([:instance, :public], true)
     end
 
     test "returns 200 to authenticated request when the instance is not public",
@@ -239,8 +235,6 @@ test "returns 200 to authenticated request when the instance is not public",
       |> with_credentials(user.nickname, "test")
       |> get("/api/statuses/public_and_external_timeline.json")
       |> json_response(200)
-
-      Pleroma.Config.put([:instance, :public], true)
     end
 
     test "returns 200 to unauthenticated request when the instance is public", %{conn: conn} do
@@ -1176,13 +1170,6 @@ test "it returns 500 if token is invalid", %{conn: conn, user: user} do
 
   describe "POST /api/account/resend_confirmation_email" do
     setup do
-      setting = Pleroma.Config.get([:instance, :account_activation_required])
-
-      unless setting do
-        Pleroma.Config.put([:instance, :account_activation_required], true)
-        on_exit(fn -> Pleroma.Config.put([:instance, :account_activation_required], setting) end)
-      end
-
       user = insert(:user)
       info_change = User.Info.confirmation_changeset(user.info, need_confirmation: true)
 
@@ -1197,6 +1184,10 @@ test "it returns 500 if token is invalid", %{conn: conn, user: user} do
       [user: user]
     end
 
+    clear_config([:instance, :account_activation_required]) do
+      Pleroma.Config.put([:instance, :account_activation_required], true)
+    end
+
     test "it returns 204 No Content", %{conn: conn, user: user} do
       conn
       |> assign(:user, user)
diff --git a/test/web/twitter_api/util_controller_test.exs b/test/web/twitter_api/util_controller_test.exs
index 640579c09..fe4ffdb59 100644
--- a/test/web/twitter_api/util_controller_test.exs
+++ b/test/web/twitter_api/util_controller_test.exs
@@ -14,20 +14,13 @@ defmodule Pleroma.Web.TwitterAPI.UtilControllerTest do
 
   setup do
     Tesla.Mock.mock(fn env -> apply(HttpRequestMock, :request, [env]) end)
-
-    instance_config = Pleroma.Config.get([:instance])
-    pleroma_fe = Pleroma.Config.get([:frontend_configurations, :pleroma_fe])
-    deny_follow_blocked = Pleroma.Config.get([:user, :deny_follow_blocked])
-
-    on_exit(fn ->
-      Pleroma.Config.put([:instance], instance_config)
-      Pleroma.Config.put([:frontend_configurations, :pleroma_fe], pleroma_fe)
-      Pleroma.Config.put([:user, :deny_follow_blocked], deny_follow_blocked)
-    end)
-
     :ok
   end
 
+  clear_config([:instance])
+  clear_config([:frontend_configurations, :pleroma_fe])
+  clear_config([:user, :deny_follow_blocked])
+
   describe "POST /api/pleroma/follow_import" do
     test "it returns HTTP 200", %{conn: conn} do
       user1 = insert(:user)
@@ -260,7 +253,6 @@ test "it returns config in json format", %{conn: conn} do
     end
 
     test "returns the state of safe_dm_mentions flag", %{conn: conn} do
-      option = Pleroma.Config.get([:instance, :safe_dm_mentions])
       Pleroma.Config.put([:instance, :safe_dm_mentions], true)
 
       response =
@@ -278,8 +270,6 @@ test "returns the state of safe_dm_mentions flag", %{conn: conn} do
         |> json_response(:ok)
 
       assert response["site"]["safeDMMentionsEnabled"] == "0"
-
-      Pleroma.Config.put([:instance, :safe_dm_mentions], option)
     end
 
     test "it returns the managed config", %{conn: conn} do
@@ -534,15 +524,7 @@ test "returns error when user is blocked", %{conn: conn} do
   end
 
   describe "GET /api/pleroma/healthcheck" do
-    setup do
-      config_healthcheck = Pleroma.Config.get([:instance, :healthcheck])
-
-      on_exit(fn ->
-        Pleroma.Config.put([:instance, :healthcheck], config_healthcheck)
-      end)
-
-      :ok
-    end
+    clear_config([:instance, :healthcheck])
 
     test "returns 503 when healthcheck disabled", %{conn: conn} do
       Pleroma.Config.put([:instance, :healthcheck], false)
diff --git a/test/web/web_finger/web_finger_controller_test.exs b/test/web/web_finger/web_finger_controller_test.exs
index 7d861cbf5..e23086b2a 100644
--- a/test/web/web_finger/web_finger_controller_test.exs
+++ b/test/web/web_finger/web_finger_controller_test.exs
@@ -10,15 +10,13 @@ defmodule Pleroma.Web.WebFinger.WebFingerControllerTest do
 
   setup do
     mock(fn env -> apply(HttpRequestMock, :request, [env]) end)
-
-    config_path = [:instance, :federating]
-    initial_setting = Pleroma.Config.get(config_path)
-
-    Pleroma.Config.put(config_path, true)
-    on_exit(fn -> Pleroma.Config.put(config_path, initial_setting) end)
     :ok
   end
 
+  clear_config_all([:instance, :federating]) do
+    Pleroma.Config.put([:instance, :federating], true)
+  end
+
   test "GET host-meta" do
     response =
       build_conn()
diff --git a/test/web/websub/websub_controller_test.exs b/test/web/websub/websub_controller_test.exs
index aa7262beb..59cacbe68 100644
--- a/test/web/websub/websub_controller_test.exs
+++ b/test/web/websub/websub_controller_test.exs
@@ -9,14 +9,8 @@ defmodule Pleroma.Web.Websub.WebsubControllerTest do
   alias Pleroma.Web.Websub
   alias Pleroma.Web.Websub.WebsubClientSubscription
 
-  setup_all do
-    config_path = [:instance, :federating]
-    initial_setting = Pleroma.Config.get(config_path)
-
-    Pleroma.Config.put(config_path, true)
-    on_exit(fn -> Pleroma.Config.put(config_path, initial_setting) end)
-
-    :ok
+  clear_config_all([:instance, :federating]) do
+    Pleroma.Config.put([:instance, :federating], true)
   end
 
   test "websub subscription request", %{conn: conn} do