How to check Bluez SPP profile version?

Hello guys,

In the website https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc/supported-features.txt?h=5.50
It says BlueZ supports SPP v1.2.

In the other website http://www.bluez.org/profiles/
It says BlueZ provides SPP v1.1 profile.

Could somebody tell me how to check the right SPP version?