Added
- **Add single-column mode in web UI** ([Gargron](https://github.com/mastodon/mastodon/pull/10807), [Gargron](https://github.com/mastodon/mastodon/pull/10848), [Gargron](https://github.com/mastodon/mastodon/pull/11003), [Gargron](https://github.com/mastodon/mastodon/pull/10961), [Hanage999](https://github.com/mastodon/mastodon/pull/10915), [noellabo](https://github.com/mastodon/mastodon/pull/10917), [abcang](https://github.com/mastodon/mastodon/pull/10859), [Gargron](https://github.com/mastodon/mastodon/pull/10820), [Gargron](https://github.com/mastodon/mastodon/pull/10835), [Gargron](https://github.com/mastodon/mastodon/pull/10809), [Gargron](https://github.com/mastodon/mastodon/pull/10963), [noellabo](https://github.com/mastodon/mastodon/pull/10883), [Hanage999](https://github.com/mastodon/mastodon/pull/10839))
- Add waiting time to the list of pending accounts in admin UI ([Gargron](https://github.com/mastodon/mastodon/pull/10985))
- Add a keyboard shortcut to hide/show media in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10647), [Gargron](https://github.com/mastodon/mastodon/pull/10838), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/10872))
- Add `account_id` param to `GET /api/v1/notifications` ([pwoolcoc](https://github.com/mastodon/mastodon/pull/10796))
- Add confirmation modal for unboosting toots in web UI ([aurelien-reeves](https://github.com/mastodon/mastodon/pull/10287))
- Add emoji suggestions to content warning and poll option fields in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10555))
- Add `source` attribute to response of `DELETE /api/v1/statuses/:id` ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10669))
- Add some caching for HTML versions of public status pages ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10701))
- Add button to conveniently copy OAuth code ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/11065))
Changed
- **Change default layout to single column in web UI** ([Gargron](https://github.com/mastodon/mastodon/pull/10847))
- **Change light theme** ([Gargron](https://github.com/mastodon/mastodon/pull/10992), [Gargron](https://github.com/mastodon/mastodon/pull/10996), [yuzulabo](https://github.com/mastodon/mastodon/pull/10754), [Gargron](https://github.com/mastodon/mastodon/pull/10845))
- **Change preferences page into appearance, notifications, and other** ([Gargron](https://github.com/mastodon/mastodon/pull/10977), [Gargron](https://github.com/mastodon/mastodon/pull/10988))
- Change priority of delete activity forwards for replies and reblogs ([Gargron](https://github.com/mastodon/mastodon/pull/11002))
- Change Mastodon logo to use primary text color of the given theme ([Gargron](https://github.com/mastodon/mastodon/pull/10994))
- Change reblogs counter to be updated when boosted privately ([Gargron](https://github.com/mastodon/mastodon/pull/10964))
- Change bio limit from 160 to 500 characters ([trwnh](https://github.com/mastodon/mastodon/pull/10790))
- Change API rate limiting to reduce allowed unauthenticated requests ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10860), [hinaloe](https://github.com/mastodon/mastodon/pull/10868), [mayaeh](https://github.com/mastodon/mastodon/pull/10867))
- Change help text of `tootctl emoji import` command to specify a gzipped TAR archive is required ([dariusk](https://github.com/mastodon/mastodon/pull/11000))
- Change web UI to hide poll options behind content warnings ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10983))
- Change silencing to ensure local effects and remote effects are the same for silenced local users ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10575))
- Change `tootctl domains purge` to remove custom emoji as well ([Kjwon15](https://github.com/mastodon/mastodon/pull/10721))
- Change Docker image to keep `apt` working ([SuperSandro2000](https://github.com/mastodon/mastodon/pull/10830))
Removed
- Remove `dist-upgrade` from Docker image ([SuperSandro2000](https://github.com/mastodon/mastodon/pull/10822))
Fixed
- Fix RTL layout not being RTL within the columns area in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/10990))
- Fix display of alternative text when a media attachment is not available in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10981))
- Fix not being able to directly switch between list timelines in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/10973))
- Fix media sensitivity not being maintained in delete & redraft in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10980))
- Fix emoji picker being always displayed in web UI ([noellabo](https://github.com/mastodon/mastodon/pull/10979), [yuzulabo](https://github.com/mastodon/mastodon/pull/10801), [wcpaez](https://github.com/mastodon/mastodon/pull/10978))
- Fix potential private status leak through caching ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10969))
- Fix refreshing featured toots when the new collection is empty in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10971))
- Fix undoing domain block also undoing individual moderation on users from before the domain block ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10660))
- Fix time not being local in the audit log ([yuzulabo](https://github.com/mastodon/mastodon/pull/10751))
- Fix statuses removed by moderation re-appearing on subsequent fetches ([Kjwon15](https://github.com/mastodon/mastodon/pull/10732))
- Fix misattribution of inlined announces if `attributedTo` isn't present in ActivityPub ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10967))
- Fix `GET /api/v1/polls/:id` not requiring authentication for non-public polls ([Gargron](https://github.com/mastodon/mastodon/pull/10960))
- Fix handling of blank poll options in ActivityPub ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10946))
- Fix avatar preview aspect ratio on edit profile page ([Kjwon15](https://github.com/mastodon/mastodon/pull/10931))
- Fix web push notifications not being sent for polls ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/10864))
- Fix cut off letters in last paragraph of statuses in web UI ([ariasuni](https://github.com/mastodon/mastodon/pull/10821))
- Fix list not being automatically unpinned when it returns 404 in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/11045))
- Fix login sometimes redirecting to paths that are not pages ([Gargron](https://github.com/mastodon/mastodon/pull/11019))