- Admin API: (`GET /api/pleroma/admin/users`) added filters user by `actor_type`
- Pleroma API: Add `idempotency_key` to the chat message entity that can be used for optimistic message sending.
- Pleroma API: (`GET /api/v1/pleroma/federation_status`) Add a way to get a list of unreachable instances.
+- Mastodon API: User and conversation mutes can now auto-expire if `expires_in` parameter was given while adding the mute.
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