Hi @surelyhungry, to update the firmware you click on the update firmware button on the device page: Blue Series • Updating Your Firmware • Hubitat | Inovelli Help Center. I think the firmware version is only shown in the state variables for Zigbee devices. If you push the “Refresh” button on the device page, wait a minute, then hit refresh on your browser it will show you the firmware version in your state variables. 01020200 is 2.0. You don’t need to really pay attention to the swbuild and can just rely on the string representation of the firmware version.
@epow z2m has the latest firmware version in its manifest.