Keep v0.3.1

VERSIONS

@@ -1,5 +1,12 @@
 # Version History
 
+## 0.3.1 (2026-02-11)
+
+### Changes
+- Added Logger example: change-detection logging for Solar Charger data
+- Added message type counters to MultiDevice example
+- Tested with MPPT Solar Chargers on ESP32-S3 and ESP32-C3
+
 ## 0.1.1 (2025-12-18)
 
 Initial release - not yet tested on hardware.