Hi AirVPN users!
The latest OpenVPN for DD-WRT can be found here ftp://ftp.dd-wrt.com/betas/2020 but please choice builds higher then 06-01-2017-r32170 as lower builds dont have the vulnerabilities patch https://ostif.org/the-openvpn-2-4-0-audit-by-ostif-and-quarkslab-results