You have to look at the back of the plug itself… And it is confusing.
v2022 - newer plugs will say 2022 right on the back. The original 2022 plugs did not, they only had the Black Key CFH symbol on the back. With only the symbol, only the Firmware version will identify it as a 2022.
v2021 - Only the Black Key CFH logo. Firmware version confirms 2021 vs early 2022.
v Pre-2021 (original) - No Black Key Logo. These are not CFH (Certified For Humans) and they act that way.