# Changelog # [3.5.1] ## **IMPORTANT! BREAKING CHANGES** - ## Added - ## Fixed - ## Changed - Use byte 0 for detection RC30 active heatingcircuit [#786](https://github.com/emsesp/EMS-ESP32/issues/786) - Write repeated selflowtemp if tx-queue is empty without verify [#954](https://github.com/emsesp/EMS-ESP32/issues/954)