2.0.0 - 21 July 2020
* Add IPv6 support
* environment variable attribute Framed-IP-Address when present
from Antonio Silva
* add Management-Privilege-Level attribute support
from Deepak Kumar Bhagat
* Honor radius prompt attribute during challenge response
From Koch
* Add support for Linux VRF (SO_BINDTODEVICE), use per-server sockets if src_ip or vrf are requested
* Use per-server socket if src_ip is set in config file
from Luca Boccassi
* many other Linux fixes from Luca Boccassi.
* Fix memory leak in add_nas_ip_address
from Matt Knutson
* Add Calling-Station-Id to accounting requests.
from Thomas Liske
* Thread safety fixes
from Samuel Varley
* Many other fixes from Justin Standring, mweissen13, and Benny Siegert.