diff --git a/ArduCopter/ReleaseNotes.txt b/ArduCopter/ReleaseNotes.txt
index e16af06733..b0c644547b 100644
--- a/ArduCopter/ReleaseNotes.txt
+++ b/ArduCopter/ReleaseNotes.txt
@@ -1,5 +1,11 @@
 ArduPilot Copter Release Notes:
 ------------------------------------------------------------------
+Copter 4.2.0-rc3 07-May-2022
+Changes from 4.2.0-rc2
+1) Bug fixes
+    a) Blended Z axis accel calculation fix when not using first IMU
+    b) Custom compass orientation for DroneCAN compasses
+------------------------------------------------------------------
 Copter 4.2.0-rc2 29-Apr-2022
 Changes from 4.2.0-rc1
 1) Minor Enhancements