diff --git a/AntennaTracker/ReleaseNotes.txt b/AntennaTracker/ReleaseNotes.txt
index 5f5b4c2dad..a90e7a0023 100644
--- a/AntennaTracker/ReleaseNotes.txt
+++ b/AntennaTracker/ReleaseNotes.txt
@@ -1,5 +1,11 @@
 Antenna Tracker Release Notes:
 ------------------------------------------------------------------
+AntennaTracker 1.1.0 26-Apr-2019
+Changes from 1.0.0
+1) ChibiOS support including support for many new flight controllers
+2) Large numbers of architectural changes but few behavioural changes
+3) Battery monitoring enabled
+------------------------------------------------------------------
 AntennaTracker 1.0.0 28-Jul-2016
 Changes from 0.8.0
 1) Compensate for tracker tilt by converting earth-frame angle targets to body-frame servo outputs