Mastodon
Your self-hosted, globally interconnected microblogging community
Alternative to: Twitter/X, Threads
v4.4.17
2026-05-20[!NOTE] While we continue to support Mastodon 4.4 and release patches for it, please note that Mastodon 4.5 is available with new features, changes and fixes. We encourage administrators to update to the latest 4.5 version when they can.
Upgrade overview
This release contains upgrade notes that deviate from the norm:
ℹ️ Requires assets recompilation
For more information, view the complete release notes and scroll down to the upgrade instructions section.
Changelog
Security
- Fix SSRF protection bypass (GHSA-crr4-7rm4-8gpw, GHSA-xx55-4rrg-8xg6)
- Fix Linked-Data Signature bypass through JSON-LD graph restructuring features (GHSA-53m7-2wrh-q839, GHSA-chgx-jx3p-rf73)
- Updated dependencies
Removed
- Remove unused devise strategies (#38795 by @ClearlyClaire)
Upgrade notes
To get the code for v4.4.17, use git fetch && git checkout v4.4.17.
[!NOTE] As always, make sure you have backups of the database before performing any upgrades. If you are using docker-compose, this is how a backup command might look:
docker exec mastodon_db_1 pg_dump -Fc -U postgres postgres > name_of_the_backup.dump
Dependencies
External dependencies have not changed since v4.4.1:
- Ruby: 3.2 or newer
- PostgreSQL: 13 or newer
- Elasticsearch (recommended, for full-text search): 7.x (OpenSearch should also work)
- LibreTranslate (optional, for translations): 1.3.3 or newer
- Redis: 6.2 or newer
- Node: 20 or newer
- libvips (optional, instead of ImageMagick): 8.13 or newer
- ImageMagick (optional if using libvips): 6.9.7-7 or newer
Update steps
The following instructions are for updating from 4.4.16.
If you are upgrading directly from an earlier release, please carefully read the upgrade notes for the skipped releases as well, as they often require extra steps such as database migrations. In particular, it is very important to read the 4.4.0 release notes.
Non-Docker
- Install dependencies with
bundle installandyarn install --immutable - Precompile the assets:
RAILS_ENV=production bundle exec rails assets:precompile - Restart all Mastodon processes.
When using Docker
- Restart all Mastodon processes.