Updated RELEASE_NOTES.

RELEASE_NOTES.md

@@ -4,9 +4,11 @@
 
 The search box also accepts post URLs; the post is requested and, if it's found, can be interacted with (liked, boosted, replied to, etc.).
 
+IP addresses for failed logins are tracked and throttled to mitigate brute force attacks (see `snac(8)` for more information).
+
 Fixed a bug regarding repeated attachments when editing a post.
 
-Mastodon API: Improved timeline pagination in some clients (details: a `Link` header has been added), fixed an incorrect value for the `bot` field in newly created accounts, fixed a crash.
+Mastodon API: Improved timeline pagination in some clients (details: an HTTP `Link` header has been added), fixed an incorrect value for the `bot` field in newly created accounts, fixed a crash.
 
 When running in server mode, the pidfile is locked to avoid concurrent running of the same server instance.