• Feature: the sticky directive and related options in the HTTP module upstream block, that allows to configure sticky sessions mode, where all requests of the session are routed to the same server.
• Feature: the $upstream_sticky_status variable, that takes either "NEW", "HIT" or "MISS" values depending on success of requesting related upstream server with sticky sessions enabled.
• Feature: support for NTLS in the HTTP and stream modules using TongSuo TLS library, that can be enabled via the ‑‑with‑ntls build time option and configured with the http ssl_ntls / stream ssl_ntls and http proxy_ssl_ntls / stream proxy_ssl_ntls corresponding directives.
• Feature: in HTTP ans stream proxy modules ability to specify multiple certificates with different types (RSA and ECDSA) and corresponding keys, using the proxy_ssl_certificate / proxy_ssl_certificate and proxy_ssl_certificate_key / proxy_ssl_certificate_key directives.
• Feature: display of version and build name in the master process title, which allows to get this information about a running server instance using the ps utility.
• Feature: ability to compress of “207 Multi-Status” responses by the gzip module.
  Thanks to DBotThePony
• Feature: all functionality of nginx 1.25.0, including HTTP/3 support.