Mastodon v4.4.0 is out. I will be doing some testing on this version before installing the upgrade on Masto.host. I am estimating the installation for tomorrow morning (UTC). You can view the changelog here:
GitHub
Release v4.4.0 · mastodon/mastodon
For a user-focused highlight of these changes, see https://blog.joinmastodon.org/2025/07/mastodon-4.4/ For changes of particular interest to applic...
 If you have any questions, please let me know.
I will be starting the installation of Mastodon v4.3.9 on Masto.host. There will be about 15 seconds of downtime during the upgrade. Changelog:
GitHub
Release v4.3.9 · mastodon/mastodon
Changelog Changed Change passthrough video processing to emit moov atom at start of video (#34726 by @ClearlyClaire) Fixed Fix NoMethodError in ...
There is currently a major incident impacting the OVH data centers and services are down. I am trying to get more information and will update once I know more.
I will be starting the installation of Mastodon v4.3.6 on Masto.host. There will be about 15 seconds of downtime during the upgrade. Changelog:
GitHub
Release v4.3.6 · mastodon/mastodon
WarningThis includes important security fixes for everyone using SAML single-sign-on. Corresponding releases are available for the 4.2.x branch and...
I will be starting the installation of Mastodon v4.3.5 on Masto.host. There will be about 15 seconds of downtime during the upgrade. Changelog:
GitHub
Release v4.3.5 · mastodon/mastodon
WarningA recently released version includes important security fixes. Corresponding releases are available for the 4.2.x branch and the 4.1.x branc...
I will be starting the installation of Mastodon v4.3.4 on Masto.host. There will be about 15 seconds of downtime during the upgrade. Changelog:
GitHub
Release v4.3.4 · mastodon/mastodon
WarningThis release includes important security fixes. Corresponding releases are available for the 4.2.x branch and the 4.1.x branch. NoteIf you ...
I'm doing some maintenance in the Masto.host infrastructure. This will cause a reboot on all hosted instances and about 15 seconds of downtime. No other impact is expected.