Notices by Mastodon Engineering (mastodonengineering@mastodon.social)

@4censord They are now published!

We just released Mastodon 4.5.10, 4.4.17, and 4.3.23.

These versions contain several medium and high severity security fixes.

Also, please note that this marks the final Mastodon v4.3 update, this branch is now unsupported. If you are still using it, please move to a newer version as soon as possible.

Full release notes and update instructions are available on the GitHub releases page.

https://github.com/mastodon/mastodon/releases

#MastoAdmin

📬 Trunk & Tidbits: 04-2026 is now live! Featuring:

- What we’re building for server admins thanks to @sovtechfund
- @imanijoy did a demo, and other great demos at @fediforum
- New releases and what’s next from product

#MastoDev #MastoAdmin #Mastodon #TrunkAndTidbits

https://blog.joinmastodon.org/2026/05/trunk-tidbits-april-2026/

@4censord Fixed, thanks for noticing!

We just released Mastodon 4.5.9, 4.4.16, and 4.3.22.

These versions contain various bug fixes, including important security fixes.

Full release notes and update instructions are available on the GitHub releases page.

https://github.com/mastodon/mastodon/releases

#MastoAdmin

Trunk & Tidbits for March is out - our monthly engineering news, featuring current releases, the profiles redesign, Collections, additional FEPs implemented - lots of work in motion.

#MastoDev #MastoAdmin #Mastodon

https://blog.joinmastodon.org/2026/04/trunk-tidbits-march-2026/

@mastodonmigration Thanks for pinging us. We had an disk space issue on the search system and were missing monitoring for it so we did not notice.
It's now fixed and indexing is catching up.

We just released Mastodon 4.5.8, 4.4.15, and 4.3.21.

These versions contain various bug fixes, including fixes for medium severity security issues.

Full release notes and update instructions are available on the GitHub releases page.

https://github.com/mastodon/mastodon/releases

#mastoadmin

The February 2026 Trunk & Tidbits is posted. Our monthly engineering update, including progress on 4.6, our AI contribution policy, upcoming end-of-life for version 4.3, some posts about the Share button, and more.

#MastoDev #MastoAdmin #Mastodon

https://blog.joinmastodon.org/2026/03/trunk-tidbits-february-2026/

We just released Mastodon 4.5.7, 4.4.14, and 4.3.20.

These versions contain various bug fixes. In particular, 4.5.7 and 4.4.14 include security fixes for the experimental FASP feature. Be sure to update if you have enabled it!

Full release notes and update instructions are available on the GitHub releases page.

https://github.com/mastodon/mastodon/releases

#mastoadmin

We're looking for two Backend Ruby on Rails Web Developers to work with us remotely as part of the core team.

Ideally you are:

1. Very experienced with Ruby on Rails
2. Proficient in PostgreSQL, and familiar with Redis and Elasticsearch
3. Experienced in developing maintainable and scalable web backend and API systems

This remote full-time position requires a 4-hour overlap with the CET timezone.

For more info/to apply: https://jobs.ashbyhq.com/mastodon/ac9d4f66-13e8-44d1-bb82-a929ebca8a27

#FediHire #GetFediHired #hiring #backend

Have you wondered what the team was working on in January? Here's our monthly "Trunk & Tidbits" update from the product and development side. Progress on Collections and more, as we work towards the next major release.

https://blog.joinmastodon.org/2026/02/trunk-tidbits-january-2026/

@fembot 4.5.5 was released on Jan 20

https://mastodon.social/@MastodonEngineering/115928196923390926

We just released Mastodon 4.5.6, 4.4.13, and 4.3.19.

These versions contain various bug fixes, including a fix for a moderate security vulnerability.

Full release notes and update instructions are available on the GitHub releases page.

https://github.com/mastodon/mastodon/releases

#MastodonAdmin

We just released Mastodon 4.5.5, 4.4.12, and 4.3.18.

These versions contain various bug fixes, including very important (1 high severity, 3 moderate severity) security fixes.

Mastodon 4.2 is now unsupported, so if you still run it, please update to a supported version as soon as you can.

Full release notes and update instructions are available on the GitHub releases page.

https://github.com/mastodon/mastodon/releases

#mastoadmin

@ed it is still under development, hopefully more information will be available in future, but we wanted to highlight it as worth watching.

The December edition of Trunk & Tidbits is posted.

It was a quieter month in terms of commits due to the holiday period, but some solid progress was made. Plus, the latest stable releases, end-of-life for Mastodon 4.2, and news about #fosdem

https://blog.joinmastodon.org/2026/01/trunk-tidbits-december-2025/

We just released Mastodon 4.5.4, 4.4.11, 4.3.17 and 4.2.29.

These versions contain various bug fixes, including a high and a moderate severity security fixes.

Mastodon v4.2.29 will be the last update for the Mastodon v4.2 branch, please update to newer versions as soon as you can.

Full release notes and update instructions are available on the GitHub releases page.

https://github.com/mastodon/mastodon/releases

@spyhunter You can send an email to staff@mastodon.social

As we're working on Collections (an upcoming feature similar to "starter packs"), and improvements to the design of user profiles, we would like to hear from you!

Please use our - short & anonymous! - User Experience Survey to share your thoughts.

#Mastodon #UserExperience #Design

https://tally.so/r/44Qdbk