[vbtechguy]

Already supported in Nginx 1.15.3+ if you recompile with either OpenSSL 1.1.1 or BoringSSL

I have no problems for

- Nginx + BoringSSL https://community.centminmod.com/threads/enabling-boringssl-...

- Nginx + OpenSSL 1.1.1 https://community.centminmod.com/threads/openssl-1-1-1-relea...

0-RTT TLS 1.3 is only supported in Nginx 1.15.3 with BoringSSL right now via ssl_early_data Nginx directive.

Nginx will add full 0-RTT TLS 1.3 for OpenSSL 1.1.1 with Nginx 1.15.4+ according to their road map https://trac.nginx.org/nginx/roadmap