diff --git a/ArduCopter/ReleaseNotes.txt b/ArduCopter/ReleaseNotes.txt
index 0c68e06a86..f1b70f5ed8 100644
--- a/ArduCopter/ReleaseNotes.txt
+++ b/ArduCopter/ReleaseNotes.txt
@@ -1,6 +1,6 @@
 ArduPilot Copter Release Notes:
 ------------------------------------------------------------------
-Copter 4.1.3-rc2 21-Dec-2021
+Copter 4.1.3 31-Dec-2021 / 4.1.3-rc2 21-Dec-2021
 Changes from 4.1.3-rc1
 1) Suport for IIM-42652, ICM-40605 and ICM-20608-D IMUs
 2) Bug fixes