The new version of Zigbee2MQTT (Z2M) adds new features and improvements, but occasionally, they can break compatibility with existing devices :). Most of the breaking changes are about removing legacy features that have been deprecated for years.

If your PTVO-based devices do not work in the latest version (Z2M shows the “Unsupported” status for your device), it seems, you should update a custom converter for it.

Note: Z2M stops loading external converters after the first broken converter. If some of your DIY devices are “unsupported” now, this does not mean that you should update converters for all devices.