On openHAB 3.0, I can confirm the LZW30 black series on/off switch is reporting 1.21 firmware. I got a 10-pack of these switches a few days ago, and it has a 0820 date code on them.
heh, there’s now a 1.22 beta for these as well; curious to see the release notes for the past couple betas!
It was for Home Assistant users.
1.22 Fixed the bug that the V1 version of Protection Set Command will cause RF state of Protection to not work correctly.