@TP-Link When will version 5.0.28 for Linux become available?

Hi all, I am trying to setup OpenVPN on my TP-Link TL-R605 router The only sections under VPN I see are: IPsec, L2TP, PPTP and Users. Where did OpenVPN go? Can anyone give some guidance? Thanks.

I purchased a "TP-Link T2600G-28MPS (TL-SG3424P) JetStream 24-Port Layer 2+ Managed Rackmount Gigabit PoE+ Switch" last year that was supplied with a free "TP-Link EAP245 Omada WiFi 5 Access Point (38