We’re happy to announce that Mastodon 4.5 is now ready for prime time! Quote posts, async fetching of replies, server timeline visibility settings, more moderation tools, and lots and lots of other tweaks and improvements. Announcement on our blog:
Mastodon Blog
Mastodon 4.5
Quote posts, the end of missing replies, new tools for admins and better emojis. All of these and more, in our latest release.
 Full release notes and update instructions are available on our GitHub release page:
GitHub
Release v4.5.0 Β· mastodon/mastodon
For a user-focused highlight of these changes, see https://blog.joinmastodon.org/2025/11/mastodon-4.5/ For changes of particular interest to applic...
 #mastoadmin
The third release candidate for Mastodon 4.5 is ready! It addresses UX concerns regarding quotes and post privacy, now warning when you quote someone in a followers-only post, and preventing quotes in Private Mentions. It also includes a few other bugfixes. We are planning to release the final 4.5.0 version tomorrow, so please test this release candidate if you can! Full release notes and update instructions are available on our GitHub release page:
GitHub
Release v4.5.0-rc.3 Β· mastodon/mastodon
WarningThis is a pre-release! This has not been as widely tested as regular releases, although it is still tested on mastodon.social and some other...
 #mastoadmin
The second release candidate for Mastodon 4.5 is ready! It fixes an issue introduced in the first release candidate with some email setups, as well as a few interface rough edges. We still expect the final version for next week, but please test it out and provide feedback! Full release notes and update instructions are available on our GitHub release page:
GitHub
Release v4.5.0-rc.2 Β· mastodon/mastodon
WarningThis is a pre-release! This has not been as widely tested as regular releases, although it is still tested on mastodon.social and some other...
 #MastodonAdmin
Are you a developer who likes to build on, or integrated with, Mastodon? We've got a great blog post for you, today - here's what is coming in Mastodon 4.5. The release candidate was tagged earlier today, with the final version really soon now 🀞🏻 (quote post authoring, AsyncRefresh API, and more)
Mastodon Blog
Mastodon 4.5 for Developers
Mastodon 4.5 contains several technical changes that developers will want to learn about.
The first release candidate for Mastodon 4.5 is ready for testing! We expect to release the final version early next week, but please test it out and provide feedback! Full release notes and update instructions are available on our GitHub release page:
GitHub
Release v4.5.0-rc.1 Β· mastodon/mastodon
WarningThis is a pre-release! This has not been as widely tested as regular releases, although it is still tested on mastodon.social and some other...
 #MastodonAdmin