### Changed
- **Breaking:** Configuration: A setting to explicitly disable the mailer was added, defaulting to true, if you are using a mailer add `config :pleroma, Pleroma.Emails.Mailer, enabled: true` to your config
- **Breaking:** Configuration: `/media/` is now removed when `base_url` is configured, append `/media/` to your `base_url` config to keep the old behaviour if desired
+- **Breaking:** `/api/pleroma/notifications/read` is moved to `/api/v1/pleroma/notifications/read` and now supports `max_id` and responds with Mastodon API entities.
- Configuration: OpenGraph and TwitterCard providers enabled by default
- Configuration: Filter.AnonymizeFilename added ability to retain file extension with custom text
+- Mastodon API: `pleroma.thread_muted` key in the Status entity
- Federation: Return 403 errors when trying to request pages from a user's follower/following collections if they have `hide_followers`/`hide_follows` set
- NodeInfo: Return `skipThreadContainment` in `metadata` for the `skip_thread_containment` option
- NodeInfo: Return `mailerEnabled` in `metadata`
- Mastodon API: Unsubscribe followers when they unfollow a user
- AdminAPI: Add "godmode" while fetching user statuses (i.e. admin can see private statuses)
- Improve digest email template
+– Pagination: (optional) return `total` alongside with `items` when paginating
### Fixed
+- Following from Osada
- Not being able to pin unlisted posts
- Objects being re-embedded to activities after being updated (e.g faved/reposted). Running 'mix pleroma.database prune_objects' again is advised.
+- Favorites timeline doing database-intensive queries
- Metadata rendering errors resulting in the entire page being inaccessible
- `federation_incoming_replies_max_depth` option being ignored in certain cases
- Federation/MediaProxy not working with instances that have wrong certificate order
- Mastodon API: Handling of search timeouts (`/api/v1/search` and `/api/v2/search`)
+- Mastodon API: Misskey's endless polls being unable to render
- Mastodon API: Embedded relationships not being properly rendered in the Account entity of Status entity
+- Mastodon API: Notifications endpoint crashing if one notification failed to render
- Mastodon API: follower/following counters not being nullified, when `hide_follows`/`hide_followers` is set
- Mastodon API: `muted` in the Status entity, using author's account to determine if the tread was muted
- Mastodon API: Add `account_id`, `type`, `offset`, and `limit` to search API (`/api/v1/search` and `/api/v2/search`)
- 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
+- ActivityPub: Deactivated user deletion
+- MRF: fix ability to follow a relay when AntiFollowbotPolicy was enabled
### Added
+- Expiring/ephemeral activites. All activities can have expires_at value set, which controls when they should be deleted automatically.
+- Mastodon API: in post_status, the expires_in parameter lets you set the number of seconds until an activity expires. It must be at least one hour.
+- Mastodon API: all status JSON responses contain a `pleroma.expires_at` item which states when an activity will expire. The value is only shown to the user who created the activity. To everyone else it's empty.
+- Configuration: `ActivityExpiration.enabled` controls whether expired activites will get deleted at the appropriate time. Enabled by default.
- 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.
- Relays: Added a task to list relay subscriptions.
- Mix Tasks: `mix pleroma.database fix_likes_collections`
- Federation: Remove `likes` from objects.
+- Admin API: Added moderation log
### Changed
- Configuration: Filter.AnonymizeFilename added ability to retain file extension with custom text
- Configuration: Added `extra_cookie_attrs` for setting non-standard cookie attributes. Defaults to ["SameSite=Lax"] so that remote follows work.
- Timelines: Messages involving people you have blocked will be excluded from the timeline in all cases instead of just repeats.
- Admin API: Move the user related API to `api/pleroma/admin/users`
+- Admin API: `POST /api/pleroma/admin/users` will take list of users
- Pleroma API: Support for emoji tags in `/api/pleroma/emoji` resulting in a breaking API change
- Mastodon API: Support for `exclude_types`, `limit` and `min_id` in `/api/v1/notifications`
- Mastodon API: Add `languages` and `registrations` to `/api/v1/instance`