Added
- **Add support for incoming edited posts** ([Gargron](https://github.com/mastodon/mastodon/pull/16697), [Gargron](https://github.com/mastodon/mastodon/pull/17727), [Gargron](https://github.com/mastodon/mastodon/pull/17728), [Gargron](https://github.com/mastodon/mastodon/pull/17320), [Gargron](https://github.com/mastodon/mastodon/pull/17404), [Gargron](https://github.com/mastodon/mastodon/pull/17390), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17335), [Gargron](https://github.com/mastodon/mastodon/pull/17696), [Gargron](https://github.com/mastodon/mastodon/pull/17745), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17740), [Gargron](https://github.com/mastodon/mastodon/pull/17697), [Gargron](https://github.com/mastodon/mastodon/pull/17648), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17531), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17499), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17498), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17380), [Gargron](https://github.com/mastodon/mastodon/pull/17373), [Gargron](https://github.com/mastodon/mastodon/pull/17334), [Gargron](https://github.com/mastodon/mastodon/pull/17333), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17699), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17748))
- Previous versions remain available for perusal and comparison
- People who reblogged a post are notified when it's edited
- New REST APIs:
- `PUT /api/v1/statuses/:id`
- `GET /api/v1/statuses/:id/history`
- `GET /api/v1/statuses/:id/source`
- New streaming API event:
- `status.update`
- **Add appeals for moderator decisions** ([Gargron](https://github.com/mastodon/mastodon/pull/17364), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17725), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17566), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17652), [Gargron](https://github.com/mastodon/mastodon/pull/17616), [Gargron](https://github.com/mastodon/mastodon/pull/17615), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17554), [Gargron](https://github.com/mastodon/mastodon/pull/17523))
- All default moderator decisions now notify the affected user by e-mail
- They now link to an appeal page instead of suggesting replying to the e-mail
- They can now be found in account settings and not just e-mail
- Users can submit one appeal within 20 days of the decision
- Moderators can approve or reject the appeal
- **Add notifications for posts deleted by moderators** ([Gargron](https://github.com/mastodon/mastodon/pull/17204), [Gargron](https://github.com/mastodon/mastodon/pull/17668), [Gargron](https://github.com/mastodon/mastodon/pull/17746), [Gargron](https://github.com/mastodon/mastodon/pull/17679), [Gargron](https://github.com/mastodon/mastodon/pull/17487))
- New, redesigned report view in admin UI
- Common report actions now only take one click to complete
- Deleting posts or marking as sensitive from report now notifies user
- Reports can be categorized by reason and specific rules violated
- The reasons are automatically cited in the notifications, except for spam
- Marking posts as sensitive now federates using post editing
- **Add explore page with trending posts and links** ([Gargron](https://github.com/mastodon/mastodon/pull/17123), [Gargron](https://github.com/mastodon/mastodon/pull/17431), [Gargron](https://github.com/mastodon/mastodon/pull/16917), [Gargron](https://github.com/mastodon/mastodon/pull/17677), [Gargron](https://github.com/mastodon/mastodon/pull/16938), [Gargron](https://github.com/mastodon/mastodon/pull/17044), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/16978), [Gargron](https://github.com/mastodon/mastodon/pull/16979), [tribela](https://github.com/mastodon/mastodon/pull/17066), [Gargron](https://github.com/mastodon/mastodon/pull/17072), [Gargron](https://github.com/mastodon/mastodon/pull/17403), [noiob](https://github.com/mastodon/mastodon/pull/17624), [mayaeh](https://github.com/mastodon/mastodon/pull/17755), [mayaeh](https://github.com/mastodon/mastodon/pull/17757), [Gargron](https://github.com/mastodon/mastodon/pull/17760), [mayaeh](https://github.com/mastodon/mastodon/pull/17762))
- Hashtag trends algorithm is extended to work for posts and links
- Links are only considered if they have an adequate preview card
- Preview card generation has been improved to support structured data
- Links can only trend if the publisher (domain) has been approved
- Posts can only trend if the author has been approved
- Individual approval and rejection for posts and links is also available
- Moderators are notified about pending trends at most once every 2 hours
- Posts and link trends are language-specific
- Search page is redesigned into explore page in web UI
- Discovery tab is coming soon in official iOS and Android apps
- New REST APIs:
- `GET /api/v1/trends/links`
- `GET /api/v1/trends/statuses`
- `GET /api/v1/trends/tags` (alias of `GET /api/v1/trends`)
- `GET /api/v1/admin/trends/links`
- `GET /api/v1/admin/trends/statuses`
- `GET /api/v1/admin/trends/tags`
- **Add graphs and retention metrics to admin dashboard** ([Gargron](https://github.com/mastodon/mastodon/pull/16829), [Gargron](https://github.com/mastodon/mastodon/pull/17617), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17570), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/16910), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/16909), [mashirozx](https://github.com/mastodon/mastodon/pull/16884), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/16854))
- Dashboard shows more numbers with development over time
- Other data such as most used interface languages and sign-up sources
- User retention graph shows how many new users stick around
- New REST APIs:
- `POST /api/v1/admin/measures`
- `POST /api/v1/admin/dimensions`
- `POST /api/v1/admin/retention`
- Add `GET /api/v1/accounts/familiar_followers` to REST API ([Gargron](https://github.com/mastodon/mastodon/pull/17700))
- Add `POST /api/v1/accounts/:id/remove_from_followers` to REST API ([noellabo](https://github.com/mastodon/mastodon/pull/16864))
- Add `category` and `rule_ids` params to `POST /api/v1/reports` IN REST API ([Gargron](https://github.com/mastodon/mastodon/pull/17492), [Gargron](https://github.com/mastodon/mastodon/pull/17682), [Gargron](https://github.com/mastodon/mastodon/pull/17713))
- `category` can be one of: `spam`, `violation`, `other` (default)
- `rule_ids` must reference `rules` returned in `GET /api/v1/instance`
- Add global `lang` param to REST API ([Gargron](https://github.com/mastodon/mastodon/pull/17464), [Gargron](https://github.com/mastodon/mastodon/pull/17592))
- Add `types` param to `GET /api/v1/notifications` in REST API ([Gargron](https://github.com/mastodon/mastodon/pull/17767))
- **Add notifications for moderators about new sign-ups** ([Gargron](https://github.com/mastodon/mastodon/pull/16953), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17629))
- When a new user confirms e-mail, moderators receive a notification
- New notification type:
- `admin.sign_up`
- Add authentication history ([Gargron](https://github.com/mastodon/mastodon/pull/16408), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/16428), [baby-gnu](https://github.com/mastodon/mastodon/pull/16654))
- Add ability to automatically delete old posts ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16529), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17691), [tribela](https://github.com/mastodon/mastodon/pull/16653))
- Add ability to pin private posts ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16954), [tribela](https://github.com/mastodon/mastodon/pull/17326), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17304), [MitarashiDango](https://github.com/mastodon/mastodon/pull/17647))
- Add ability to filter search results by author using `from:` syntax ([tribela](https://github.com/mastodon/mastodon/pull/16526))
- Add ability to delete canonical email blocks in admin UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16644))
- Add ability to purge undeliverable domains in admin UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16686), [tribela](https://github.com/mastodon/mastodon/pull/17210), [tribela](https://github.com/mastodon/mastodon/pull/17741), [tribela](https://github.com/mastodon/mastodon/pull/17209))
- Add ability to disable e-mail token authentication for specific users in admin UI ([Gargron](https://github.com/mastodon/mastodon/pull/16427))
- **Add ability to suspend accounts in batches in admin UI** ([Gargron](https://github.com/mastodon/mastodon/pull/17009), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17301), [Gargron](https://github.com/mastodon/mastodon/pull/17444))
- New, redesigned accounts list in admin UI
- Batch suspensions are meant to help clean up spam and bot accounts
- They do not generate notifications
- Add ability to filter reports by origin of target account in admin UI ([Gargron](https://github.com/mastodon/mastodon/pull/16487))
- Add support for login through OpenID Connect ([chandrn7](https://github.com/mastodon/mastodon/pull/16221))
- Add lazy loading for emoji picker in web UI ([mashirozx](https://github.com/mastodon/mastodon/pull/16907), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17011))
- Add single option votes tooltip in polls in web UI ([Brawaru](https://github.com/mastodon/mastodon/pull/16849))
- Add confirmation modal when closing media edit modal with unsaved changes in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16518))
- Add hint about missing media attachment description in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/17845))
- Add support for fetching Create and Announce activities by URI in ActivityPub ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16383))
- Add `S3_FORCE_SINGLE_REQUEST` environment variable ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16866))
- Add `OMNIAUTH_ONLY` environment variable ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17288), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17345))
- Add `ES_USER` and `ES_PASS` environment variables for Elasticsearch authentication ([tribela](https://github.com/mastodon/mastodon/pull/16890))
- Add `CAS_SECURITY_ASSUME_EMAIL_IS_VERIFIED` environment variable ([baby-gnu](https://github.com/mastodon/mastodon/pull/16655))
- Add ability to pass specific domains to `tootctl accounts cull` ([tribela](https://github.com/mastodon/mastodon/pull/16511))
- Add `--by-uri` option to `tootctl domains purge` ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16434))
- Add `--batch-size` option to `tootctl search deploy` ([aquarla](https://github.com/mastodon/mastodon/pull/17049))
- Add `--remove-orphans` option to `tootctl statuses remove` ([noellabo](https://github.com/mastodon/mastodon/pull/17067))
Changed
- Change design of federation pages in admin UI ([Gargron](https://github.com/mastodon/mastodon/pull/17704), [noellabo](https://github.com/mastodon/mastodon/pull/17735), [Gargron](https://github.com/mastodon/mastodon/pull/17765))
- Change design of account cards in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/17689))
- Change `follow` scope to be covered by `read` and `write` scopes in REST API ([Gargron](https://github.com/mastodon/mastodon/pull/17678))
- Change design of authorized applications page ([Gargron](https://github.com/mastodon/mastodon/pull/17656), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17686))
- Change e-mail domain blocks to block IPs dynamically ([Gargron](https://github.com/mastodon/mastodon/pull/17635), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17650), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17649))
- Change report modal to include category selection in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/17565), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17734), [Gargron](https://github.com/mastodon/mastodon/pull/17654), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17632))
- Change reblogs to not count towards hashtag trends anymore ([Gargron](https://github.com/mastodon/mastodon/pull/17501))
- Change languages to be listed under standard instead of native name in admin UI ([Gargron](https://github.com/mastodon/mastodon/pull/17485))
- Change routing paths to use usernames in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/16171), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/16772), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/16773), [mashirozx](https://github.com/mastodon/mastodon/pull/16793), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17060))
- Change list title input design in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17092))
- Change "Opt-in to profile directory" preference to be general discoverability preference ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16637))
- Change API rate limits to use /64 masking on IPv6 addresses ([tribela](https://github.com/mastodon/mastodon/pull/17588), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17600), [zunda](https://github.com/mastodon/mastodon/pull/17590))
- Change allowed formats for locally uploaded custom emojis to include GIF ([rgroothuijsen](https://github.com/mastodon/mastodon/pull/17706), [Gargron](https://github.com/mastodon/mastodon/pull/17759))
- Change error message when chosen password is too long ([rgroothuijsen](https://github.com/mastodon/mastodon/pull/17082))
- Change minimum required Elasticsearch version from 6 to 7 ([noellabo](https://github.com/mastodon/mastodon/pull/16915))
Removed
- Remove profile directory link from main navigation panel in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/17688))
- **Remove language detection through cld3** ([Gargron](https://github.com/mastodon/mastodon/pull/17478), [ykzts](https://github.com/mastodon/mastodon/pull/17539), [Gargron](https://github.com/mastodon/mastodon/pull/17496), [Gargron](https://github.com/mastodon/mastodon/pull/17722))
- cld3 is very inaccurate on short-form content even with unique alphabets
- Post language can be overridden individually using `language` param
- Otherwise, it defaults to the user's interface language
- Remove support for `OAUTH_REDIRECT_AT_SIGN_IN` ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17287))
- Use `OMNIAUTH_ONLY` instead
- Remove Keybase integration ([Gargron](https://github.com/mastodon/mastodon/pull/17045))
- Remove old columns and indexes ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17245), [Gargron](https://github.com/mastodon/mastodon/pull/16409), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17191))
- Remove shortcodes from newly-created media attachments ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16730), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/16763))
Deprecated
- `GET /api/v1/trends` → `GET /api/v1/trends/tags`
- OAuth `follow` scope → `read` and/or `write`
- `text` attribute on `DELETE /api/v1/statuses/:id` → `GET /api/v1/statuses/:id/source`
Fixed
- Fix IDN domains not being rendered correctly in a few left-over places ([Gargron](https://github.com/mastodon/mastodon/pull/17848))
- Fix Sanskrit translation not being used in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17820))
- Fix Kurdish languages having the wrong language codes ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17812))
- Fix pghero making database schema suggestions ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17807))
- Fix encoding glitch in the OpenGraph description of a profile page ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17821))
- Fix web manifest not permitting PWA usage from alternate domains ([HolgerHuo](https://github.com/mastodon/mastodon/pull/16714))
- Fix not being able to edit media attachments for scheduled posts ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17690))
- Fix subscribed relay activities being recorded as boosts ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17571))
- Fix streaming API server error messages when JSON parsing fails not specifying the source ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17559))
- Fix browsers autofilling new password field with old password ([mashirozx](https://github.com/mastodon/mastodon/pull/17702))
- Fix text being invisible before fonts load in web UI ([tribela](https://github.com/mastodon/mastodon/pull/16330))
- Fix public profile pages of unconfirmed users being accessible ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17385), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17457))
- Fix nil error when trying to fetch key for signature verification ([Gargron](https://github.com/mastodon/mastodon/pull/17747))
- Fix null values being included in some indexes ([Gargron](https://github.com/mastodon/mastodon/pull/17711))
- Fix `POST /api/v1/emails/confirmations` not being available after sign-up ([Gargron](https://github.com/mastodon/mastodon/pull/17743))
- Fix rare race condition when reblogged post is deleted ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17693), [ClearlyClaire](https://github.com/mastodon/mastodon/pull/17730))
- Fix being able to add more than 4 hashtags to hashtag column in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/17729))
- Fix data integrity of featured tags ([Gargron](https://github.com/mastodon/mastodon/pull/17712))
- Fix performance of account timelines ([Gargron](https://github.com/mastodon/mastodon/pull/17709))
- Fix returning empty `<p>` tag for blank account `note` in REST API ([Gargron](https://github.com/mastodon/mastodon/pull/17687))
- Fix leak of existence of otherwise inaccessible posts in REST API ([Gargron](https://github.com/mastodon/mastodon/pull/17684))
- Fix not showing loading indicator when searching in web UI ([Gargron](https://github.com/mastodon/mastodon/pull/17655))
- Fix media modal footer's “external link” not being a link ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17561))
- Fix reply button on media modal not giving focus to compose form ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17626))
- Fix some media attachments being converted with too high framerates ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17619))
- Fix sign in token and warning emails failing to send when contact e-mail address is malformed ([helloworldstack](https://github.com/mastodon/mastodon/pull/17589))
- Fix opening the emoji picker scrolling the single-column view to the top ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17579))
- Fix edge case where settings/admin page sidebar would be incorrectly hidden ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17580))
- Fix performance of server-side filtering ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17575))
- Fix privacy policy link not being visible on small screens ([Gargron](https://github.com/mastodon/mastodon/pull/17533))
- Fix duplicate accounts when searching by IP range in admin UI ([Gargron](https://github.com/mastodon/mastodon/pull/17524), [tribela](https://github.com/mastodon/mastodon/pull/17150))
- Fix error when performing a batch action on posts in admin UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17532))
- Fix deletes not being signed in authorized fetch mode ([Gargron](https://github.com/mastodon/mastodon/pull/17484))
- Fix Undo Announce sometimes inlining the originally Announced status ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17516))
- Fix localization of cold-start follow recommendations ([Gargron](https://github.com/mastodon/mastodon/pull/17479), [Gargron](https://github.com/mastodon/mastodon/pull/17486))
- Fix replies collection incorrectly looping ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17462))
- Fix errors when multiple Delete are received for a given actor ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17460))
- Fixed prototype pollution bug and only allow trusted origin ([r0hanSH](https://github.com/mastodon/mastodon/pull/17420))
- Fix text being incorrectly pre-selected in composer textarea on /share ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17339))
- Fix SMTP_ENABLE_STARTTLS_AUTO/SMTP_TLS/SMTP_SSL environment variables don't work ([kgtkr](https://github.com/mastodon/mastodon/pull/17216))
- Fix media upload specific rate limits only being applied to v1 endpoint in REST API ([tribela](https://github.com/mastodon/mastodon/pull/17272))
- Fix media descriptions not being used for client-side filtering ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17206))
- Fix cold-start follow recommendation favouring older accounts due to wrong sorting ([noellabo](https://github.com/mastodon/mastodon/pull/17126))
- Fix not redirect to the right page after authenticating with WebAuthn ([heguro](https://github.com/mastodon/mastodon/pull/17098))
- Fix searching for additional hashtags in hashtag column ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17054))
- Fix color of hashtag column settings inputs ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17058))
- Fix performance of `tootctl statuses remove` ([noellabo](https://github.com/mastodon/mastodon/pull/17052))
- Fix `tootctl accounts cull` not excluding domains on timeouts and certificate issues ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16433))
- Fix 404 error when filtering admin action logs by non-existent target account ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16643))
- Fix error when accessing streaming API without any OAuth scopes ([Brawaru](https://github.com/mastodon/mastodon/pull/16823))
- Fix follow request count not updating when new follow requests arrive over streaming API in web UI ([matildepark](https://github.com/mastodon/mastodon/pull/16652))
- Fix error when unsuspending a local account ([HolgerHuo](https://github.com/mastodon/mastodon/pull/16605))
- Fix crash when a notification contains a not yet processed media attachment in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16573))
- Fix wrong color of download button in audio player in web UI ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16572))
- Fix notes for others accounts not being deleted when an account is deleted ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16579))
- Fix error when logging occurrence of unsupported video file ([noellabo](https://github.com/mastodon/mastodon/pull/16581))
- Fix wrong elements in trends widget being hidden on smaller screens in web UI ([tribela](https://github.com/mastodon/mastodon/pull/16570))
- Fix link to about page being displayed in limited federation mode ([weex](https://github.com/mastodon/mastodon/pull/16432))
- Fix styling of boost button in media modal not reflecting ability to boost ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16387))
- Fix OCR failure when erroneous lang data is in cache ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/16386))
- Fix downloading media from blocked domains in `tootctl media refresh` ([tribela](https://github.com/mastodon/mastodon/pull/16914))
- Fix login form being displayed on landing page when already logged in ([ClearlyClaire](https://github.com/mastodon/mastodon/pull/17348))
- Fix polling for media processing status too frequently in web UI ([tribela](https://github.com/mastodon/mastodon/pull/17271))
- Fix hashtag autocomplete overriding user-typed case ([weex](https://github.com/mastodon/mastodon/pull/16460))
- Fix WebAuthn authentication setup to not prompt for PIN ([truongnmt](https://github.com/mastodon/mastodon/pull/16545))
Security
- Fix being able to post URLs longer than 4096 characters ([Gargron](https://github.com/mastodon/mastodon/pull/17908))
- Fix being able to bypass e-mail restrictions ([Gargron](https://github.com/mastodon/mastodon/pull/17909))