I'm using the Developer Preview of Android Things on my Raspberry Pi 3 and now, that the Preview 2 is released, I was asking myself if my RPi will get this via OTA.
Where can I find the build number to check against my device
generic/iot_rpi3/rpi3:7.0/NIF73/3565696:userdebug/test-keys
On the developer page I didn't find anything and before I rebuild by sdcard, it would be easier to compare it.
so I'm not sure if this is preview 1 or 2
generic/iot_rpi3/rpi3:7.0/NIF73/3565696:userdebug/test-keys is the fingerprint for Preview 1, so you're still on it.
You can
getprop ro.build.id to see the build number which is also reflected on the Release Notes (the hint came from @Devunwired, so don't forget to upvote his comment)getprop ro.build.date to see the date of a build. Preview 2 should give you February 2017 instead of December 2016 for Preview 1.