Changes with nginx 1.27.2 02 Oct 2024 *) Feature: SSL certificates, secret keys, and CRLs are now cached on start or during reconfiguration. *) Feature: client certificate validation with OCSP in the stream module. *) Feature: OCSP stapling support in the stream module. *) Feature: the "proxy_pass_trailers" directive in the ngx_http_proxy_module. *) Feature: the "ssl_client_certificate" directive now supports certificates with auxiliary information. *) Change: now the "ssl_client_certificate" directive is not required for client SSL certificates verification. -- Sergey Kandaurov