azure: Retirement: Azure VPN Gateway support for SSTP Protocol will be retired on March 31, 2027

Azure VPN Gateway will retire support for the SSTP protocol on March 31, 2027. Microsoft cites limited scalability and suboptimal performance and advises customers to migrate to IKEv2 or OpenVPN, which offer significantly improved capabilities (including support for up to 10,000 connections).

• Source: Azure Updates