We've successfully upgraded our Mastodon server to v4.6.0-alpha.5+mementomods-2026-03-21, along with Mastodon Bird UI 4.0.0-alpha.0-4.
This update includes today's latest daily build with 269 new commits from upstream since mementomods-2026-02-21.
What's new in Mastodon core - These are the changes Mastodon Team have introduced us in the latest nightly version we are running:
✨️ New features
- Collections: Public collections on profiles, remote account support, share dialog, reporting, moderation tools, tag suggestions, and language selector (not active for us yet)
- Profile editing: New API, avatar/header image uploading with descriptions, featured tags editing, account fields grid layout (not active for us yet)
- New `exclude_direct` flag for account statuses API
- Split `invite_users` permission into `invite_bypass_approval` for finer control
- `max_note_length` and `max_display_name_length` now exposed in instance configuration API
- Accessibility improvements to sign-up flow, reset password and confirmation pages
- Lots of fixes, refactors, and dependency updates
🔮 Upcoming
- Profile redesign and Collections continue to be built incrementally upstream behind experimental flags, we'll enable them once Mastodon Bird UI support is ready
- FASP (Fediverse Auxiliary Service Providers) infrastructure continues to be developed
🐦⬛ Mastodon Bird UI 4.0.0-alpha.0-4 (nightly)
- Fix focusable background color standing out too much for account name
- Fix install script for Mastodon 2026-03-21 `common.scss` removal
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.5. Unfortunately a development is a bit stalled due to a lack of time personally.
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!


