There are several efforts to implement QUIC and HTTP/3 in nginx. Cloudflare has it deployed in production with quiche[1], and Nginx themselves are developing on

There are several efforts to implement QUIC and HTTP/3 in nginx. Cloudflare has it deployed in production with quiche[1], and Nginx themselves are developing one[2]. Applications sitting behind a proxy wouldn't need to be updated. The core protocol semantics of HTTP are relatively unchanged between HTTP/1.1, HTTP/2, and HTTP/3. [1] https://github.com/cloudflare/quiche https://github.com/cloudflare/quiche [2] https://www.nginx.com/blog/introducing-technology-preview-nginx-support-for-quic-http-3/ https://www.nginx.com/blog/introducing-technology-preview-ng...