Add `registrations.reason_required` attribute to `/api/v2/instance` response (ClearlyClaire)
https://github.com/mastodon/mastodon/pull/34280

Use fixed order in flaky spec (oneiros)
https://github.com/mastodon/mastodon/pull/34279

Add support for paginating partial collections in `SynchronizeFollowersService` (ClearlyClaire)
https://github.com/mastodon/mastodon/pull/34277

Add `EXTRA_MEDIA_HOSTS` environment variable to add extra hosts to Content-Security-Policy (shleeable)
https://github.com/mastodon/mastodon/pull/34184

New Crowdin Translations (automated) (github-actions[bot])
https://github.com/mastodon/mastodon/pull/34276

Add new filter action to blur media (ClearlyClaire)
https://github.com/mastodon/mastodon/pull/34256

Convert `settings/deletes` spec controller->request/system (mjankowski)
https://github.com/mastodon/mastodon/pull/34274

Refactor alerts to TypeScript, remove `react-notification` dependency (Gargron)
https://github.com/mastodon/mastodon/pull/34239

Isolate assertions in v2/notifications intermittent failure cases (mjankowski)
https://github.com/mastodon/mastodon/pull/34271

Fix follower synchronization mechanism erroneously removing followers from multi-page collections (ClearlyClaire)
https://github.com/mastodon/mastodon/pull/34272

Allow devcontainer to be accessed from local network (ChaosExAnima)
https://github.com/mastodon/mastodon/pull/34269

Fix bookmarks and favourites not being filtered (ClearlyClaire)
https://github.com/mastodon/mastodon/pull/34260