contents has been renamed to `hide_notification_contents`
- Mastodon API: Added `pleroma.metadata.post_formats` to /api/v1/instance
- Mastodon API (legacy): Allow query parameters for `/api/v1/domain_blocks`, e.g. `/api/v1/domain_blocks?domain=badposters.zone`
+- Pleroma API: `/api/pleroma/captcha` responses now include `seconds_valid` with an integer value.
</details>
<details>
### Added
+- Configuration: Added a blacklist for email servers.
- Chats: Added `accepts_chat_messages` field to user, exposed in APIs and federation.
- Chats: Added support for federated chats. For details, see the docs.
- ActivityPub: Added support for existing AP ids for instances migrated from Mastodon.
- Support for viewing instances favicons next to posts and accounts
- Added Pleroma.Upload.Filter.Exiftool as an alternate EXIF stripping mechanism targeting GPS/location metadata.
- "By approval" registrations mode.
-- Configuration: Added `:welcome` settings for the welcome message to newly registered users.
+- Configuration: Added `:welcome` settings for the welcome message to newly registered users. You can send a welcome message as a direct message, chat or email.
+- Ability to hide favourites and emoji reactions in the API with `[:instance, :show_reactions]` config.
<details>
<summary>API Changes</summary>