diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 021d191..5fdd27d 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -6,6 +6,8 @@ Posts that were liked or boosted can now be unliked and unboosted.
 
 Outgoing message timeouts are no longer hardcoded and can be configured (see `snac(8)` for more information).
 
+Mastodon API: Added support for lists.
+
 Added a header to avoid over-zealous caching in some browsers (contributed by louis77).
 
 Added support for running and federating inside hidden networks like Tor, I2P or Loki (contributed by iwojima).