diff --git a/AntennaTracker/ReleaseNotes.txt b/AntennaTracker/ReleaseNotes.txt
index 169a98ae38c3e..9acbd0cd963e6 100644
--- a/AntennaTracker/ReleaseNotes.txt
+++ b/AntennaTracker/ReleaseNotes.txt
@@ -320,6 +320,7 @@ Changes from 4.5.7
 - Slung payload oscillation suppression applet added (see copter-slung-payload.lua)
 - Temperature sensor bindings added
 - uint64 support
+- Various performance and memory usage optimizations
 - VTOL-quicktune.lua minor enhancements including increasing YAW_FLTE_MAX to 8
 - x-quad-cg-allocation.lua applet corrects for the CoM discrepancy in a quad-X frame