Nginx 1.31.4 has been released, introducing native support for PROXY Protocol v2 in its stream and mail modules, enhancing integration with modern cloud load balancers. This version also standardizes the forwarding of HTTP/2 and gRPC requests, ensuring consistent handling of authority and Host headers for microservices. Following a series of security patches in earlier releases, this update focuses on stability, with no new vulnerabilities reported and fixes for a binary regression affecting third-party modules. Operators using gRPC or cloud proxies are encouraged to upgrade, while those on the stable 1.28.x branch should check their security patches before considering an update

Nginx 1.31.4 Release: PROXY Protocol v2 and gRPC Hardening

Nginx 1.31.4 is live, bringing native PROXY Protocol v2 support to the stream and mail modules for easier integration with modern cloud load balancers. The update also standardizes how HTTP/2 and gRPC requests are forwarded to backends, ensuring consistent authority and Host header handling for microservices. After a volatile security season that saw over a dozen CVEs patched across the first three mainline releases, this version focuses on stability with zero new vulnerabilities and fixes a binary regression for third-party modules. Operators running gRPC traffic or cloud proxies should upgrade immediately, while stable branch users on 1.28.x can verify their security patches before moving.

Nginx 1.31.4 Release: PROXY Protocol v2 and gRPC Hardening @ Linux Compatible