diff --git a/ArduCopter/ReleaseNotes.txt b/ArduCopter/ReleaseNotes.txt
index 8b63a36575..defa5fbe04 100644
--- a/ArduCopter/ReleaseNotes.txt
+++ b/ArduCopter/ReleaseNotes.txt
@@ -1,6 +1,6 @@
 ArduPilot Copter Release Notes:
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-Copter 3.5.1-rc1 24-July-2017
+Copter 3.5.1 31-July-2017 / 3.5.1-rc1 24-July-2017
 Changes from 3.5.0
 1) fix to RC input corruption when using Spektrum DSMx with Pixracer 
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