diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 884f152d..9087bcf0 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -6,6 +6,7 @@ Version 2.3 (Development branch, work in progress -- not a release yet.)
 Beware: there appears to be a serious bug in iTunes, such that it may stall for a long period when sending large (more than a few hundred kilobytes) coverart images.
 
 * Bugfix
+ * Fix a bug  whereby if the ANNOUNCE and/or SETUP method fails, the play_lock mutex is never unlocked, thus blocking other clients from connecting. This can affect all types of users, but particularly Pulseaudio users. (Thanks to https://github.com/jclehner.)
  * Modify the init script to start after all services are ready. Add in a commented-out sleep command if users find it necessary (thanks to https://github.com/BNoiZe).
  * Two memory leaks fixed.
  * An error handling time specifications for flushes was causing an audible glitch when pausing and resuming some tracks. This has been fixed (thanks to https://github.com/Hamster128).