diff --git a/ArduCopter/ReleaseNotes.txt b/ArduCopter/ReleaseNotes.txt
index 80ba7786e1..18a47b6bca 100644
--- a/ArduCopter/ReleaseNotes.txt
+++ b/ArduCopter/ReleaseNotes.txt
@@ -3,22 +3,27 @@ ArduPilot Copter Release Notes:
 Copter 4.3.3-rc1 09-Jan-2023
 Changes from 4.3.2
 1) Autopilot related changes
-    a) AIRLink LTE module enable pin added
+    a) AIRLink LTE module enable pin and HEAT_ params added
     b) CUAV Nora/Nora+ bdshot firmware (allows Bi-directional DShot)
     c) CubeOrange, CubeYellow gets fast reset of ICM20602
-    d) PixPilot-V6
+    d) MambaH743v2 with dual ICM42688 supported
+    e) PixPilot-V6
 2) Attitude and Navigation controllers use real-time dt (better handles variable or slow main loop)
-3) Bug fixes
+3) MAVFTP speed improvement including faster param download
+4) Bug fixes
     a) Analog rangefinder GPIO pin arming check fixed
     b) Arming check of AHRS/EKF vs GPS location disabled if GPS disabled
-    c) Position Controller limit handling improved to avoid overshooting and hard landings
-    d) PSC_ANGLE_MAX param reduction causing WPNAV_ACCEL to be set too low fixed
-    e) Servo gimbal yaw jump to opposite side fixed
-    f) Siyi A8 gimbal driver's record video feature fixed
-    g) SToRM32 serial gimbal driver actual angle reporting fixed (pitch and yaw angle signs were reversed)
-    h) Takeoff in Auto, Guided fixed when target altitude is current altitude
-    i) Takeoff in Auto handles baro drift before takeoff
-    j) Takeoff twitch due to velocity integrator init bug fixed
+    c) CRSF gets RC_OPTIONS for ELRS baudrate to avoid RC failsafes
+    d) Null pointer checks avoid watchdog when out of memory
+    e) Position Controller limit handling improved to avoid overshooting and hard landings
+    f) Position Controller internal error after 70min of flight fixed
+    g) PSC_ANGLE_MAX param reduction causing WPNAV_ACCEL to be set too low fixed
+    h) Servo gimbal yaw jump to opposite side fixed
+    i) Siyi A8 gimbal driver's record video feature fixed
+    j) SToRM32 serial gimbal driver actual angle reporting fixed (pitch and yaw angle signs were reversed)
+    k) Takeoff in Auto, Guided fixed when target altitude is current altitude
+    l) Takeoff in Auto handles baro drift before takeoff
+    m) Takeoff twitch due to velocity integrator init bug fixed
 ------------------------------------------------------------------
 Copter 4.3.2 23-Dec-2022
 Changes from 4.3.2-rc1