Changes with nginx 1.24.0 11 Apr 2023
*) 1.24.x stable branch.
Changes with nginx 1.23.4 28 Mar 2023
*) Change: now TLSv1.3 protocol is enabled by default.
*) Change: now nginx issues a warning if protocol parameters of a
listening socket are redefined.
*) Change: now nginx closes connections with lingering if pipelining was
used by the client.
*) Feature: byte ranges support in the ngx_http_gzip_static_module.
*) Bugfix: port ranges in the "listen" directive did not work; the bug
had appeared in 1.23.3.
Thanks to Valentin Bartenev.
*) Bugfix: incorrect location might be chosen to process a request if a
prefix location longer than 255 characters was used in the
configuration.
*) Bugfix: non-ASCII characters in file names on Windows were not
supported by the ngx_http_autoindex_module, the ngx_http_dav_module,
and the "include" directive.
*) Change: the logging level of the "data length too long", "length too
short", "bad legacy version", "no shared signature algorithms", "bad
digest length", "missing sigalgs extension", "encrypted length too
long", "bad length", "bad key update", "mixed handshake and non
handshake data", "ccs received early", "data between ccs and
finished", "packet length too long", "too many warn alerts", "record
too small", and "got a fin before a ccs" SSL errors has been lowered
from "crit" to "info".
*) Bugfix: a socket leak might occur when using HTTP/2 and the
"error_page" directive to redirect errors with code 400.
*) Bugfix: messages about logging to syslog errors did not contain
information that the errors happened while logging to syslog.
Thanks to Safar Safarly.
*) Workaround: "gzip filter failed to use preallocated memory" alerts
appeared in logs when using zlib-ng.
*) Bugfix: in the mail proxy server.
Changes with nginx 1.23.3 13 Dec 2022
*) Bugfix: an error might occur when reading PROXY protocol version 2
header with large number of TLVs.
*) Bugfix: a segmentation fault might occur in a worker process if SSI
was used to process subrequests created by other modules.
Thanks to Ciel Zhao.
*) Workaround: when a hostname used in the "listen" directive resolves
to multiple addresses, nginx now ignores duplicates within these
addresses.
*) Bugfix: nginx might hog CPU during unbuffered proxying if SSL
connections to backends were used.
Changes with nginx 1.23.2 19 Oct 2022
*) Security: processing of a specially crafted mp4 file by the
ngx_http_mp4_module might cause a worker process crash, worker
process memory disclosure, or might have potential other impact
(CVE-2022-41741, CVE-2022-41742).
*) Feature: the "$proxy_protocol_tlv_..." variables.
*) Feature: TLS session tickets encryption keys are now automatically
rotated when using shared memory in the "ssl_session_cache"
directive.
*) Change: the logging level of the "bad record type" SSL errors has
been lowered from "crit" to "info".
Thanks to Murilo Andrade.
*) Change: now when using shared memory in the "ssl_session_cache"
directive the "could not allocate new session" errors are logged at
the "warn" level instead of "alert" and not more often than once per
second.
*) Bugfix: nginx/Windows could not be built with OpenSSL 3.0.x.
*) Bugfix: in logging of the PROXY protocol errors.
Thanks to Sergey Brester.
*) Workaround: shared memory from the "ssl_session_cache" directive was
spent on sessions using TLS session tickets when using TLSv1.3 with
OpenSSL.
*) Workaround: timeout specified with the "ssl_session_timeout"
directive did not work when using TLSv1.3 with OpenSSL or BoringSSL.
Changes with nginx 1.23.1 19 Jul 2022
*) 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.
Changes with nginx 1.23.0 21 Jun 2022
*) Change in internal API: now header lines are represented as linked
lists.
*) Change: now nginx combines arbitrary header lines with identical
names when sending to FastCGI, SCGI, and uwsgi backends, in the
$r->header_in() method of the ngx_http_perl_module, and during lookup
of the "$http_...", "$sent_http_...", "$sent_trailer_...",
"$upstream_http_...", and "$upstream_trailer_..." variables.
*) Bugfix: if there were multiple "Vary" header lines in the backend
response, nginx only used the last of them when caching.
*) Bugfix: if there were multiple "WWW-Authenticate" header lines in the
backend response and errors with code 401 were intercepted or the
"auth_request" directive was used, nginx only sent the first of the
header lines to the client.
*) Change: the logging level of the "application data after close
notify" SSL errors has been lowered from "crit" to "info".
*) Bugfix: connections might hang if nginx was built on Linux 2.6.17 or
newer, but was used on systems without EPOLLRDHUP support, notably
with epoll emulation layers; the bug had appeared in 1.17.5.
Thanks to Marcus Ball.
*) Bugfix: nginx did not cache the response if the "Expires" response
header line disabled caching, but following "Cache-Control" header
line enabled caching.
