diff --git a/ArduPlane/ReleaseNotes.txt b/ArduPlane/ReleaseNotes.txt
index 7f22c72e5a..667cc2e7ed 100644
--- a/ArduPlane/ReleaseNotes.txt
+++ b/ArduPlane/ReleaseNotes.txt
@@ -1,3 +1,20 @@
+Release 5.2.5 26th November 2024
+--------------------------------
+This release is a safety critical tuning patch for Volanti to address recent
+filter lag issues.
+
+ - Volanti-specific changes:
+   - Changes to filters and tune.
+     - Pilots may notice a small visible vibration in the tail in hover flight.
+       This is normal and expected.
+     - Position hold in gusty conditions should be significantly improved.
+   - Aircraft can now achieve its bank limit of 40 degrees. Previously, an
+     unnecessary stall prevention feature was silently reducing the bank limit.
+
+Technical:
+ - Increase timeout for BLHeli telemetry
+ - Add error counting in BLHeli driver
+
 Release 5.2.4 9th October 2024
 ------------------------------
 This release includes a patch to fix Ottano default param CAN servo bitmask.
diff --git a/libraries/AP_Common/CxVersion.h b/libraries/AP_Common/CxVersion.h
index 7aa977a489..8c62db3657 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-5.2.4"
+#define AP_CUSTOM_FIRMWARE_STRING "CxPilot-5.2.5"
 #endif
 #endif