diff --git a/ArduCopter/ReleaseNotes.txt b/ArduCopter/ReleaseNotes.txt
index 2eda4f29c3..bd7c89db94 100644
--- a/ArduCopter/ReleaseNotes.txt
+++ b/ArduCopter/ReleaseNotes.txt
@@ -1,5 +1,11 @@
 ArduPilot Copter Release Notes:
 ------------------------------------------------------------------
+Copter 3.5.4-rc2 17-Nov-2017
+Changes from 3.5.3
+1) Compass improvements / bug fixes:
+    a) probe for LIS3MDL on I2C address 0x1e
+    b) bug fix pixracer compass detection
+------------------------------------------------------------------
 Copter 3.5.4-rc1 08-Nov-2017
 Changes from 3.5.3
 1) Compass improvements: