- Updated to 1.23.1
* Feature: memory usage optimization in configurations with SSL proxying.
* Feature: looking up of IPv4 addresses while resolving now can be
disabled with the "ipv4=off" parameter of the "resolver" directive.
* Change: the logging level of the "bad key share", "bad extension",
"bad cipher", and "bad ecpoint" SSL errors has been lowered from "crit" to "info".
* Bugfix: while returning byte ranges nginx did not remove the
"Content-Range" header line if it was present in the original backend response.
* Bugfix: a proxied response might be truncated during reconfiguration
on Linux; the bug had appeared in 1.17.5.