We just released Mastodon 4.3.3, 4.2.15 and 4.1.22. Tmastoadminn a few bug fixes as well as a security fix (medium severity, https://github.com/mastodon/mastodon/security/advisories/GHSA-5wxh-3p65-r4g6)
We recommend every instance administrator to update as soon as possible.
If you are using our nightly releases, a container image with the fix has been published with the `nightly.2025-01-17-security` tag.
Full release notes and update instructions are available on our GitHub release page: https://github.com/mastodon/mastodon/releases/
