Existing Smart Meter

Assuming I have a first generation smart meter this will have become dumb when I switched to bulb and I will have to give manual readings.
If my meter is a second generation I understand this can remain smart and send readings to bulb…
How can I tell what generation of meter I have?
If it’s Gen2 how do I know if bulb are taking readings from it?

There is a list of SMETS2 meters on this page: Technical information on Smart Meters: Smart Metering - The full story
If the model of yours is not listed there, it’s not SMETS2.

Some SMETS1 meters can currently be read by Bulb though but you typically need to contact them directly (after joining) for them to check whether they can or not.