diff --git a/RELEASE-NOTES.txt b/RELEASE-NOTES.txt
index 6fa0df4ce8e8..941bccd48a2a 100644
--- a/RELEASE-NOTES.txt
+++ b/RELEASE-NOTES.txt
@@ -8,6 +8,7 @@
 * [**] Block editor: Tapping on a nested block now gets focus directly instead of having to tap multiple times depending on the nesting levels. [https://github.com/WordPress/gutenberg/pull/50108]
 * [*] [Jetpack-only] Block editor: Use host app namespace in reusable block message [https://github.com/WordPress/gutenberg/pull/50478]
 * [*] [internal] [Jetpack-only] Enables domain purchases in site creation A/B experiment. [#20670]
+* [*] Classic Block: Fixes a crash that happens when attempting to add media to a classic block while the library permissions are missing. [#20666]
 
 22.3
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