mastodon 4.8.0-nightly.2026-10-06Our 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@mastodon.social
For news and updates on the Mastodon servers we operate (like this one!), follow @staff@mastodon.social
We just released Mastodon 4.7.0!
This version contains very few user-facing changes, but significantly reworks the backend code to improve security and support new protocol features.
You can read more about it on our blog: https://blog.joinmastodon.org/2026/08/mastodon-4.7/
Note for admins: the database migrations might take a long time, this is expected (see the release notes).
Release notes and upgrade instructions are available here: https://github.com/mastodon/mastodon/releases/tag/v4.7.0
We released the first beta for Mastodon 4.7 today. It contains very few user-facing changes, but contains significant reworks of the backend code to improve security and support new protocol features.
This update includes substantial database migrations that might take up to a couple of hours on very large servers, but will not cause downtime if the upgrade instructions are followed.
Release notes and upgrade instructions are available here: https://github.com/mastodon/mastodon/releases/tag/v4.7.0-beta.1
We just released Mastodon 4.6.5. It contains one important bug fix and we recommend every instance running 4.6 to update.
We are also releasing Mastodon v4.5.15 and v4.4.22 with minor bugfixes
Full release notes and update instructions are available on the GitHub releases page.
We just released Mastodon 4.6.6, 4.5.16 and 4.4.23.
They contain minor bug fixes and we advise server administrators to update when they can.
Full release notes and update instructions are available on the GitHub releases page. https://github.com/mastodon/mastodon/releases
We released the Release Candidate for Mastodon 4.7 today.
It contains very few user-facing changes, but significantly reworks the backend code to improve security and support new protocol features.
We plan to release the final 4.7 version next week, so if you like being on the edge please test this RC and send us your feedback!
The database migrations might take a long time, this is expected.
Release notes and upgrade instructions are available here: https://github.com/mastodon/mastodon/releases/tag/v4.7.0-rc.1
📬 Trunk & Tidbits for July 2026 is now out!
Our monthly blog post series is there to showcase what we worked on last month.
In this edition, we welcome @jhbabon@hachyderm.io and highlight the many backend changes that were merged and will be part of our upcoming 4.7 release. Those include support for FEP-8b32, FEP 8967 and new algorithms, including ML-DSA-44 for post-quantum signatures.
https://blog.joinmastodon.org/2026/08/trunk-tidbits-july-2026/
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.
For #Mastodon app developers and fellow #fediverse platform developers, with the approaching Mastodon 4.6 release we've put together an overview of new and changed APIs that you may want to look at! Collections, profile editing, #Wrapstodon, and more:
https://blog.joinmastodon.org/2026/06/mastodon-4-6-for-devs/
We just released Mastodon 4.5.11 and 4.4.18.
These versions contain a medium and a high severity security fixes as well as other bugfixes.
Full release notes and update instructions are available on the GitHub releases page.
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
Following last week's beta, the first release candidate for #Mastodon 4.6 is out! 🎉
You can find all of the changes on the release page: https://github.com/mastodon/mastodon/releases/tag/v4.6.0-rc.1
We aim to publish the release next week. If you are an admin, now is a good time to upgrade to the release candidate and help us find any last minute bugs!
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.
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.
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.
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.
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.
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 4.5.4, 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.
We just released Mastodon 4.5.3, 4.4.10 and 4.3.16 and 4.2.28.
These versions contain various bug fixes, including a fix for a minor security issue.
Full release notes and update instructions are available on the GitHub releases page.
📬 Trunk & Tidbits: 04-2026 is now live! Featuring:
- What we’re building for server admins thanks to @sovtechfund@mastodon.social
- @imanijoy@mastodon.social did a demo, and other great demos at @fediforum@mastodon.social
- New releases and what’s next from product
#MastoDev #MastoAdmin #Mastodon #TrunkAndTidbits
https://blog.joinmastodon.org/2026/05/trunk-tidbits-april-2026/
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 4.5.1
This version fixes some bugs found in 4.5.0.
Full release notes and update instructions are available on the GitHub release page.
We just released Mastodon 4.5.2, 4.4.9 and 4.3.15.
These versions contain small bug fixes.
Full release notes and update instructions are available on the GitHub releases page.
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/
We just released #Mastodon 4.4.1, a small patch release fixing a few issues with 4.4.0.
We recommend to install this version instead of 4.4.0 when you update your server.
Full release notes and update instructions are available on our GitHub release page: https://github.com/mastodon/mastodon/releases/tag/v4.4.1
The November "Trunk & Tidbits" is out! Read about our new organisational announcements and events; the start of development for our Collections feature; CSS theme tokens and Helm chart; and, the latest stable releases.
https://blog.joinmastodon.org/2025/12/trunk-tidbits-november-2025/
Attention Mastodon server operators 🤹🏻
We are working on a new Helm chart for Kubernetes deployments, and the team would appreciate your feedback. See this issue for the new repository (and to provide comments) #mastoadmin
