diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index cd37071560..32d66cee10 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -90,6 +90,10 @@
 *   HLS
     *   Forward the FRAME-RATE value from the master playlist to renditions.
         ([#8960](https://github.com/google/ExoPlayer/issues/8960)).
+*   RTSP
+    *   Fix session description (SDP) parsing to use a HashMap-like behaviour
+        for duplicated attributes.
+        ([#9014](https://github.com/google/ExoPlayer/issues/9014)).
 
 ### 2.14.1 (2021-06-11)