Q: Where can I find core Bluetooth specifications? I am trying to leverage bluetooth (GATT, GAP, Security Manager, Pairing, Broadcast etc...) using BlueZ. 
To decode BlueZ however I need access to full bluetooth core/protocol specifications. As an individual developer, where can I get hold of these specifications?
The membership to Bluetooth SIG requires me to be part of an incorporated company and I am asked to send them filing details etc...
Is there a way to get hold of Bluetooth Core Specs for individuals and hobby developers?
Importantly does BlueZ fully implement all Bluetooth Core specifications?

A: The Bluetooth specification should be free to download for everyone. You can find the latest specification at the following link:-
https://www.bluetooth.com/specifications/bluetooth-core-specification/
Make sure to click at the "5.1" link.
BlueZ is fully compliant with the Bluetooth specification, however, it does not support all the available features in the specification.
I hope this helps.
