We've successfully upgraded our Mastodon server to v4.6.0-alpha.4+mementomods-2026-02-08, along with Mastodon Bird UI 4.0.0-alpha.0-4.
This update includes today's latest daily build with 112 new commits from upstream since alpha.3 (2026-01-24).
What's new in Mastodon core - These are the changes Mastodon Team have introduced us in the latest nightly version we are running:
🔒 Security
- Upstream security patch
✨ New features (some only on the back end for now)
- Better language support: Horizontal and vertical posts can now coexist
- Mute end date now shown in badge
- Text-autospace added to post content
- Collections: create, edit, delete, and federated across servers
- Store remote actors' profile pic and header descriptions
- Flag to preserve cached media on cleanup
🐛 Bug fixes
- Fix quote cancel button appearing in all statuses
- Fix followers with bell icon being notified of post edits
- Fix quote cancel button not appearing after edit then delete-and-redraft
- Fix remote account last status tracking
- Fix filtering of mentions from filtered-on-their origin-server accounts
- Fix connection leak issues
- Fix duplicate hashtag processing in object updates
🔧 Other
- "Anyone can quote" label changed to "quotes allowed"
- Various dependency updates (pg, brakeman, dotenv, pino, paperclip, etc.)
🔮 Upcoming
- A profile redesign is being built incrementally upstream
- Pinned posts, follow button reorg, featured tags, badges, timeline filters, and more are landing as foundational pieces.
🐦⬛ Mastodon Bird UI 4.0.0-alpha.0-4 (nightly)
- Fix translate button color not matching link color
- Fix extra border-left showing up in mobile devices
Mastodon Bird UI 4.0.0-alpha.0-4 is still a work in progress in the nightly branch. It's not 100% ready, but it's stable with today's Mastodon alpha.4.
Source code: https://github.com/mementomori-social/mastodon
As always, if you notice anything unusual or buggy, please reach out to me or any of the admins. Enjoy your time here, and feel free to message me with any questions or thoughts. 
If anything feels off, please let us know!