Mastodon Engineering

@MastodonEngineering
16.9K Followers
17 Following
173 Posts

Our mission is to connect the world through thriving online communities.

This is the account for the software engineering and design team that makes Mastodon.

For news and updates from the overall Mastodon project, follow @Mastodon

For news and updates on the Mastodon servers we operate (like this one!), follow @staff

Homepagehttps://joinmastodon.org
Patreonhttps://patreon.com/mastodon
GitHubhttps://github.com/mastodon
Documentationhttps://docs.joinmastodon.org
Mastodon EngineeringApr 15

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

Releases · mastodon/mastodon

Your self-hosted, globally interconnected microblogging community - mastodon/mastodon

GitHub
Mastodon EngineeringApr 10

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/

Trunk & Tidbits, March 2026

An update on the latest engineering work from the Mastodon team as we approach version 4.6

Mastodon Blog
Mastodon EngineeringMar 26
MastodonMar 26

Coming soon in Mastodon 4.6 - a redesigned profile page. We've used community feedback and surveys to inform these updates. In our latest blog post, @imanijoy explains our design thinking and choices. Here are a few highlights 🧵

https://blog.joinmastodon.org/2026/03/a-redesign-for-profiles/

A Redesign for Profiles

Sharing the design thinking for the new look coming to profile pages.

Mastodon Blog
Mastodon EngineeringMar 24

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

Mastodon EngineeringMar 10

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/

Trunk & Tidbits, February 2026

Product and engineering updates from the Mastodon team.

Mastodon Blog
Mastodon EngineeringFeb 24

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

Releases · mastodon/mastodon

Your self-hosted, globally interconnected microblogging community - mastodon/mastodon

GitHub
Mastodon EngineeringFeb 20

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

2 x Remote Backend Ruby on Rails Web Developers

2 x Remote Backend Ruby on Rails Web Developers

Mastodon EngineeringFeb 18
MastodonFeb 18

In today's blog post, we have @renchap (with @imanijoy) updating you on the project roadmap, plans, and technical direction.

https://blog.joinmastodon.org/2026/02/our-technical-direction/

Our technical direction

Sharing the thinking behind the technical and product plans for upcoming releases.

Mastodon Blog
Mastodon EngineeringFeb 11
MastodonFeb 11

We've just published a blog post about our time at #FOSDEM this year, in case you missed out - there's plenty to catch up on, from the session recordings.

https://blog.joinmastodon.org/2026/02/fosdem-2026-recap/

FOSDEM 2026 Recap

All about our presence at FOSDEM 2026.

Mastodon Blog
Mastodon EngineeringFeb 11

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/

Trunk & Tidbits, January 2026

Updates from the Mastodon product and engineering team.

Mastodon Blog