- update to 1.19.8:
* Feature: flags in the "proxy_cookie_flags" directive can now contain
variables.
* Feature: the "proxy_protocol" parameter of the "listen" directive,
the "proxy_protocol" and "set_real_ip_from" directives in mail proxy.
* Bugfix: HTTP/2 connections were immediately closed when using
"keepalive_timeout 0"; the bug had appeared in 1.19.7.
* Bugfix: some errors were logged as unknown if nginx was built with
glibc 2.32.
* Bugfix: in the eventport method.