Update release notes

Author: kean

RELEASE-NOTES.txt

@@ -11,6 +11,7 @@
 * [*] Fix layout issues in Privacy Settings section of App Settings [#23936]
 * [*] Fix incorrect chevron icons direction in RTL languages [#23940]
 * [*] Fix an issue with clear navigation bar background in revision browser [#23941]
+* [*] Fix an issue with comments being lost on request failure [#23942]
 
 25.6
 -----