ZHA’s deCONZ radio library repairs startup on ConBee II and RaspBee II adapters after zigpy 2.4 added Green Power support. The firmware has room for two communication endpoints, while the new setup requested three; an adapter previously used by zigpy 2.1–2.3 could fail on every startup.
The library fits the endpoints together and retains ordinary home-automation traffic plus Green Power. On two-slot firmware this drops the legacy Zigbee Light Link endpoint, so incoming messages addressed to that endpoint are not received; outgoing traffic is unchanged.