Mastodon is a "decentralized Twitter." Microblogs are scattered across many independent servers that are interconnected into a single network. The closest analogy is regular email. You can register on any server and subscribe to messages from users on any other server. servers.
Changes (from v2.9.0)
New Features
- API for moderation added.
- Audio uploads added.
- Short_description and approval_required added to the GET method for /api/v1/instance.
Changes
- Blocking domains now automatically supports subdomains.
- Nanobox configuration changed.
- The upload form camera icon has been changed to a paperclip icon.
Removed
- Resource-intensive counters removed from the federation page in the admin interface.
Source: linux.org.ru

