Supported Zigbee devices list

Another problem I see is that whereas z-wave is backwards compatible, zigbee isn’t (AFAIK).

For instance, I bought a bitronvideo stick, running an old ember stack. It doesn’t work with my zigbee sockets. AFAIK there is currently no firmware upgrade possible for this stick so my sockets are ‘not supported’ - yet they probably are with newer stack / other sticks (I’m just not prepared to throw any more money at zigbee due to things like this)

So what I’m trying to get at is the supported list would have to be very very detailed