Feature: The sticky directive and related options in the stream module’s upstream block, which allow to configure sticky sessions mode where all connections in the session are routed to the same server.
Feature: Extraction of Cookie values from RDP connections using the rdp_preread directive in the stream module into $rdp_cookie and $rdp_cookie_NAME variables, which allows to log and stick RDP client sessions to particular servers while load balancing.
Feature: Support for multiple acme directives in a server block, which allows to configure obtaining two types of certificates at once for that virtual server.
Feature: Command line options -m and -M to list built-in and loaded modules.
Feature: Support for BoringSSL in the ACME module.
Feature: All functionality of nginx 1.27.0, including support for virtual servers in the stream module and the pass directive, which allows to pass accepted connections for handling to another listening sockets, including HTTP and Mail modules.
Bugfix: Certificate request via the ACME protocol could result in error on some configurations with a log message like [alert] getsockname() failed (9: Bad file descriptor).
Bugfix: Certificate request with large number of domain names via the ACME protocol could result in error with a log message like [error] JSON parser error.
Bugfix: ACME clients in configurations with multiple error_log directives could log messages to irrelevant logs.