Version: 1.13.1
Required minimum memory: 1536MB
Last updated 23 Feb 2024

Recent Changes

  • Update Mastodon to 4.2.8

  • This update changes registrations to be closed by default.

  • Full changelog

  • Add hourly task to automatically require approval for new registrations in the absence of moderators (ClearlyClaire, ClearlyClaire)

  • In order to prevent future abandoned Mastodon servers from being used for spam, harassment and other malicious activity, Mastodon will now automatically switch new user registrations to require moderator approval whenever they are left open and no activity (including non-moderation actions from apps) from any logged-in user with permission to access moderation reports has been detected in a full week.

  • When this happens, users with the permission to change server settings will receive an email notification.

  • This feature is disabled when EMAILDOMAINALLOWLIST is used, and can also be disabled with DISABLEAUTOMATICSWITCHINGTOAPPROVED_REGISTRATIONS=true.

  • Change registrations to be closed by default on new installations (ClearlyClaire)

  • If you are running a server and never changed your registrations mode from the default, updating will automatically close your registrations.

  • Simply re-enable them through the administration interface or using tootctl settings registrations open if you want to enable them again.

  • Fix processing of remote ActivityPub actors making use of Link objects as Image url (ClearlyClaire)

  • Fix link verifications when page size exceeds 1MB (ClearlyClaire)


Mastodon is a free, open-source social network server based on ActivityPub where users can follow friends and discover new ones. On Mastodon, users can publish anything they want: links, pictures, text, video. All Mastodon servers are interoperable as a federated network (users on one server can seamlessly communicate with users from another one, including non-Mastodon software that implements ActivityPub)!


  • No vendor lock-in: Fully interoperable with any conforming platform
  • Real-time, chronological timeline updates
  • Media attachments like images and short videos
  • Safety and moderation tools
  • OAuth2 and a straightforward REST API

Install Mastodon in a few minutes on your server with Cloudron. To install Cloudron first, follow our setup steps.
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