The latest release seems to have caused a bug where a second entity was created for all my Airthings Bluetooth devices. This broke some things because now only the new entities are valid.
I can confirm that this occurs on my Airthings air quality monitors as well. Quite literally EVERY sensor for the device has been duplicated. I assume this has to do with the Bluetooth speed improvements somehow.
It’s gotten to the point that every 2023.x.0 release requires a LOT of time reconfiguring. This is the third time I have had to totally redo the Airthings entities in the past 6 months.
Update in case anyone is interested. I was able to upgrade to 2023.9.2 and the old sensors without the _2 worked again.
So… The problem did arise with 2023.9.1, but it’s unrelated to Airthings_BLE. Apparently a bug crept into the Bluetooth integration: Home Assistant 2023.9.1 bluetooth dongle failed to set up after upgrade. Even though the title refers to a dongle, I’m experiencing the same behavior with the RasPi4 on-board Bluetooth.