diff --git a/ArduCopter/ReleaseNotes.txt b/ArduCopter/ReleaseNotes.txt
index 7399139bd1..8b63a36575 100644
--- a/ArduCopter/ReleaseNotes.txt
+++ b/ArduCopter/ReleaseNotes.txt
@@ -1,5 +1,9 @@
 ArduPilot Copter Release Notes:
 ------------------------------------------------------------------
+Copter 3.5.1-rc1 24-July-2017
+Changes from 3.5.0
+1) fix to RC input corruption when using Spektrum DSMx with Pixracer 
+------------------------------------------------------------------
 Copter 3.5.0 17-July-2017 / 3.5.0-rc11 12-July-2017
 Changes from 3.5-rc10
 1) GPS fixes: