diff --git a/ArduPlane/ReleaseNotes.txt b/ArduPlane/ReleaseNotes.txt
index c27bc58488..6ca5e0254f 100644
--- a/ArduPlane/ReleaseNotes.txt
+++ b/ArduPlane/ReleaseNotes.txt
@@ -1,3 +1,8 @@
+Release 5.2.0-beta3 19th June 2024
+------------------------------
+Technical:
+ - AP_Param: fixed setting of defaults for dynamic param trees 
+
 Release 5.2.0-beta2 18th June 2024
 ------------------------------
 Technical:
diff --git a/libraries/AP_Common/CxVersion.h b/libraries/AP_Common/CxVersion.h
index 6b4ff8505b..27ff8a973f 100644
--- a/libraries/AP_Common/CxVersion.h
+++ b/libraries/AP_Common/CxVersion.h
@@ -1,5 +1,5 @@
 #ifdef CARBOPILOT
 #ifndef AP_CUSTOM_FIRMWARE_STRING
-#define AP_CUSTOM_FIRMWARE_STRING "CxPilot-5.2.0-beta2"
+#define AP_CUSTOM_FIRMWARE_STRING "CxPilot-5.2.0-beta3"
 #endif
 #endif