diff --git a/ArduSub/ReleaseNotes.txt b/ArduSub/ReleaseNotes.txt
index e1ab1e924a..bdbb914abd 100644
--- a/ArduSub/ReleaseNotes.txt
+++ b/ArduSub/ReleaseNotes.txt
@@ -1,5 +1,14 @@
 APM:Sub Release Notes:
 
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Sub 4.1.0-beta8 26-May-2022
+
+ - Fix issue with poshold introduced in beta7 (no lateral control)
+ - Fix i2c buses masks for Navigator
+ - Do not use RC3_MIN/MAX instead of MOT_PWM_MIN/MAX
+ - Update submodules for easier builds
+ - Fix cygwin build
+
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Sub 4.1.0-beta7 29-Apr-2022