Mastodon Engineering

@MastodonEngineering
16.5K Followers
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167 Posts

We're building a free, open-source, decentralised social network that gives people back control over their data and their reach.

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

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

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

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

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

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

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

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

Releases · mastodon/mastodon

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

GitHub

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

Releases · mastodon/mastodon

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

GitHub

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/

Trunk & Tidbits, December 2025

A look back at what the team was working on last month, and what's coming next.

Mastodon Blog

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

Releases · mastodon/mastodon

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

GitHub