diff --git a/ArduCopter/ReleaseNotes.txt b/ArduCopter/ReleaseNotes.txt
index b60c07e590..8c9b883fc2 100644
--- a/ArduCopter/ReleaseNotes.txt
+++ b/ArduCopter/ReleaseNotes.txt
@@ -1,5 +1,16 @@
 ArduPilot Copter Release Notes:
 ------------------------------------------------------------------
+Copter 4.0.0-rc5 23-Dec-2019
+Changes from 4.0.0-rc4
+1) RM3100 compass enabled on all boards
+2) GCS failsafe disabled by default (see FS_GCS_ENABLE parameter)
+3) Bug Fixes
+   a) Bootloader fix for H7 boards (could brick CubeOrange, CUAV V5 Nano, etc)
+   b) OmnibusF4pro GPS fix
+   c) MatekF405-Wing missing serial ports restored
+   d) MatekF765-Wing RTSCTS parameter defaults set correctly
+   e) CUAV V5 Nano battery monitor param defaults improved
+------------------------------------------------------------------
 Copter 4.0.0-rc4 20-Dec-2019
 Changes from 4.0.0-rc3
 1) Compiler updated to gcc 6.3.1