NGINX 1.13.8-1 mainline-version, built statically against OpenSSL 1.1.1-dev draft 18 branch and “ngx cache purge“.
To test/play with TLSv1.3 please modify your config as follows:
server { ... ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; ssl_ciphers TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-128-GCM-SHA256:TLS13-AES-256-GCM-SHA384:ECDHE:!COMPLEMENTOFDEFAULT; ssl_ecdh_curve secp384r1; ... }
Links:
Alternatively, feel free to use our CentOS/RHEL repository.