How do I check the Bluez version?
Solution 1:
BlueZ has a daemon process named 'bluetoothd'
Issue command: bluetoothd -v to get the active or working version of BlueZ.
Solution 2:
Open a terminal and enter
dpkg --status bluez | grep '^Version:'
or the slightly more obscure
dpkg-query -Wf '${Version}\n' bluez
Solution 3:
You could go to the Software Center, search for “BlueZ” and click on the first entry. The version number is given below the description.
As for reference, on Ubuntu 13.04, I have bluez 4.101-0ubuntu8b1.