diff --git a/docs/PreReleaseNotes.txt b/docs/PreReleaseNotes.txt
index 496189447b0..d701c7067e7 100644
--- a/docs/PreReleaseNotes.txt
+++ b/docs/PreReleaseNotes.txt
@@ -18,6 +18,7 @@ Prerelease Notes
 
 
 + **Minor bug fixes**
+  * **[POSIX]** Avoid unnecessary cache open requests.
   * **[Server]** Follow protocol spec when returning file compression info. Fixes #721
 
 + **Miscellaneous**