Updated RELEASE_NOTES.

RELEASE_NOTES.md

@@ -2,6 +2,8 @@
 
 ## 2.32
 
+New user setup flag to block direct messages from people you don't follow, in order to mitigate spam from Mastodon open registration instances.
+
 When updating user information, the changes are also sent to the people being followed (so they have an updated description about who the user is).
 
 Mastodon API: account search has been implemented, so mention completion works from apps.