.`nginx 1.20` available in RHEL 9 RHEL 9 includes the `nginx 1.20` web and proxy server. This release provides a number of bug fixes, security fixes, new features and enhancements over version 1.18. New features: * `nginx` now supports client SSL certificate validation with Online Certificate Status Protocol (OCSP). * `nginx` now supports cache clearing based on the minimum amount of free space. This support is implemented as the `min_free` parameter of the `proxy_cache_path` directive. * A new `ngx_stream_set_module` module has been added, which enables you to set a value for a variable. * A new `nginx-mod-devel` package has been added, which provides all necessary files, including RPM macros and `nginx` source code, for building external dynamic modules for `nginx`. Enhanced directives: * Multiple new directives are now available, such as `ssl_conf_command` and `ssl_reject_handshake`. * The `proxy_cookie_flags` directive now supports variables. Improved support for HTTP/2: * The `ngx_http_v2` module now includes the `lingering_close`, `lingering_time`, `lingering_timeout` directives. * Handling connections in HTTP/2 has been aligned with HTTP/1.x. From `nginx 1.20`, use the `keepalive_timeout` and `keepalive_requests` directives instead of the removed `http2_recv_timeout`, `http2_idle_timeout`, and `http2_max_requests` directives. `nginx 1.20` is the initial version of this Application Stream, which you can install easily as an RPM package. Additional `nginx` versions will be provided as modules with a shorter life cycle in future minor releases of RHEL 9. For more information, see link:https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/deploying_web_servers_and_reverse_proxies/setting-up-and-configuring-nginx_deploying-web-servers-and-reverse-proxies[Setting up and configuring NGINX].