diff --git a/ArduCopter/ReleaseNotes.txt b/ArduCopter/ReleaseNotes.txt
index 3091a00fba..18b390127d 100644
--- a/ArduCopter/ReleaseNotes.txt
+++ b/ArduCopter/ReleaseNotes.txt
@@ -65,6 +65,10 @@ Changes from 3.4.4
     a) in-tree drivers lead to improved sharing of drivers with Linux boards
     b) copter arming checks consolidated with other vehicles
 ------------------------------------------------------------------
+Copter 3.4.6 15-Mar-2017
+Changes from 3.4.5
+1) ensure WPNAV_LOIT_SPEED is non-zero to avoid divide-by-zero
+------------------------------------------------------------------
 Copter 3.4.5 11-Feb-2017
 Changes from 3.4.4
 1) Bug fix to Guided mode that could lead to crash after take-off completes if MOT_THST_HOVER too high