diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
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--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,3 +1,8 @@
+### 7.21.1 - 07.09.2024
+
+* Updated to FSAC 0.74.1. This release includes fixes for the floating codelens issue users have reported, updates to the Fantomas integration to allow usage with the global-tool installation of fantomas, and an enhancement to the 'generate cases' code action for DU matches that allows it to generate cases even when no matches have been entered.
+* Updated the Ionide textmate grammar to get some more highlighting fixes
+
 ### 7.21.0 - 18.08.2024
 
 * Update to FSAC 0.74.0. This release includes the compiler update for NET SDK 8.0.400, as well as enhancements