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Changes with nginx 1.13.9 20 Feb 2018
*) Feature: HTTP/2 server push support; the "http2_push" and
"http2_push_preload" directives.
*) Bugfix: "header already sent" alerts might appear in logs when using
cache; the bug had appeared in 1.9.13.
*) Bugfix: a segmentation fault might occur in a worker process if the
"ssl_verify_client" directive was used and no SSL certificate was
specified in a virtual server.
*) Bugfix: in the ngx_http_v2_module.
*) Bugfix: in the ngx_http_dav_module.
Changes with nginx 1.13.8 26 Dec 2017
*) Feature: now nginx automatically preserves the CAP_NET_RAW capability
in worker processes when using the "transparent" parameter of the
"proxy_bind", "fastcgi_bind", "memcached_bind", "scgi_bind", and
"uwsgi_bind" directives.
*) Feature: improved CPU cache line size detection.
Thanks to Debayan Ghosh.
*) Feature: new directives in vim syntax highlighting scripts.
Thanks to Gena Makhomed.
*) Bugfix: binary upgrade refused to work if nginx was re-parented to a
process with PID different from 1 after its parent process has
finished.
*) Bugfix: the ngx_http_autoindex_module incorrectly handled requests
with bodies.
*) Bugfix: in the "proxy_limit_rate" directive when used with the
"keepalive" directive.
*) Bugfix: some parts of a response might be buffered when using
"proxy_buffering off" if the client connection used SSL.
Thanks to Patryk Lesiewicz.
*) Bugfix: in the "proxy_cache_background_update" directive.
*) Bugfix: it was not possible to start a parameter with a variable in
the "${name}" form with the name in curly brackets without enclosing
the parameter into single or double quotes.
Changes with nginx 1.13.7 21 Nov 2017
*) Bugfix: in the $upstream_status variable.
*) Bugfix: a segmentation fault might occur in a worker process if a
backend returned a "101 Switching Protocols" response to a
subrequest.
*) Bugfix: a segmentation fault occurred in a master process if a shared
memory zone size was changed during a reconfiguration and the
reconfiguration failed.
*) Bugfix: in the ngx_http_fastcgi_module.
*) Bugfix: nginx returned the 500 error if parameters without variables
were specified in the "xslt_stylesheet" directive.
*) Workaround: "gzip filter failed to use preallocated memory" alerts
appeared in logs when using a zlib library variant from Intel.
*) Bugfix: the "worker_shutdown_timeout" directive did not work when
using mail proxy and when proxying WebSocket connections.
Changes with nginx 1.13.6 10 Oct 2017
*) Bugfix: switching to the next upstream server in the stream module
did not work when using the "ssl_preread" directive.
*) Bugfix: in the ngx_http_v2_module.
Thanks to Piotr Sikora.
*) Bugfix: nginx did not support dates after the year 2038 on 32-bit
platforms with 64-bit time_t.
*) Bugfix: in handling of dates prior to the year 1970 and after the
year 10000.
*) Bugfix: in the stream module timeouts waiting for UDP datagrams from
upstream servers were not logged or logged at the "info" level
instead of "error".
*) Bugfix: when using HTTP/2 nginx might return the 400 response without
logging the reason.
*) Bugfix: in processing of corrupted cache files.
*) Bugfix: cache control headers were ignored when caching errors
intercepted by error_page.
*) Bugfix: when using HTTP/2 client request body might be corrupted.
*) Bugfix: in handling of client addresses when using unix domain
sockets.
*) Bugfix: nginx hogged CPU when using the "hash ... consistent"
directive in the upstream block if large weights were used and all or
most of the servers were unavailable.
Changes with nginx 1.13.5 05 Sep 2017
*) Feature: the $ssl_client_escaped_cert variable.
*) Bugfix: the "ssl_session_ticket_key" directive and the "include"
parameter of the "geo" directive did not work on Windows.
*) Bugfix: incorrect response length was returned on 32-bit platforms
when requesting more than 4 gigabytes with multiple ranges.
*) Bugfix: the "expires modified" directive and processing of the
"If-Range" request header line did not use the response last
modification time if proxying without caching was used.
Changes with nginx 1.13.4 08 Aug 2017
*) Feature: the ngx_http_mirror_module.
*) Bugfix: client connections might be dropped during configuration
testing when using the "reuseport" parameter of the "listen"
directive on Linux.
*) Bugfix: request body might not be available in subrequests if it was
saved to a file and proxying was used.
*) Bugfix: cleaning cache based on the "max_size" parameter did not work
on Windows.
*) Bugfix: any shared memory allocation required 4096 bytes on Windows.
*) Bugfix: nginx worker might be terminated abnormally when using the
"zone" directive inside the "upstream" block on Windows.
Changes with nginx 1.13.3 11 Jul 2017
*) Security: a specially crafted request might result in an integer
overflow and incorrect processing of ranges in the range filter,
potentially resulting in sensitive information leak (CVE-2017-7529).
Changes with nginx 1.13.2 27 Jun 2017
*) Change: nginx now returns 200 instead of 416 when a range starting
with 0 is requested from an empty file.
*) Feature: the "add_trailer" directive.
Thanks to Piotr Sikora.
*) Bugfix: nginx could not be built on Cygwin and NetBSD; the bug had
appeared in 1.13.0.
*) Bugfix: nginx could not be built under MSYS2 / MinGW 64-bit.
Thanks to Orgad Shaneh.
*) Bugfix: a segmentation fault might occur in a worker process when
using SSI with many includes and proxy_pass with variables.
*) Bugfix: in the ngx_http_v2_module.
Thanks to Piotr Sikora.
Changes with nginx 1.13.1 30 May 2017
*) Feature: now a hostname can be used as the "set_real_ip_from"
directive parameter.
*) Feature: vim syntax highlighting scripts improvements.
*) Feature: the "worker_cpu_affinity" directive now works on DragonFly
BSD.
Thanks to Sepherosa Ziehau.
*) Bugfix: SSL renegotiation on backend connections did not work when
using OpenSSL before 1.1.0.
*) Workaround: nginx could not be built with Oracle Developer Studio
12.5.
*) Workaround: now cache manager ignores long locked cache entries when
cleaning cache based on the "max_size" parameter.
*) Bugfix: client SSL connections were immediately closed if deferred
accept and the "proxy_protocol" parameter of the "listen" directive
were used.
*) Bugfix: in the "proxy_cache_background_update" directive.
*) Workaround: now the "tcp_nodelay" directive sets the TCP_NODELAY
option before an SSL handshake.
Changes with nginx 1.13.0 25 Apr 2017
*) Change: SSL renegotiation is now allowed on backend connections.
*) Feature: the "rcvbuf" and "sndbuf" parameters of the "listen"
directives of the mail proxy and stream modules.
*) Feature: the "return" and "error_page" directives can now be used to
return 308 redirections.
Thanks to Simon Leblanc.
*) Feature: the "TLSv1.3" parameter of the "ssl_protocols" directive.
*) Feature: when logging signals nginx now logs PID of the process which
sent the signal.
*) Bugfix: in memory allocation error handling.
*) Bugfix: if a server in the stream module listened on a wildcard
address, the source address of a response UDP datagram could differ
from the original datagram destination address.
Changes with nginx 1.11.13 04 Apr 2017
*) Feature: the "http_429" parameter of the "proxy_next_upstream",
"fastcgi_next_upstream", "scgi_next_upstream", and
"uwsgi_next_upstream" directives.
Thanks to Piotr Sikora.
*) Bugfix: in memory allocation error handling.
*) Bugfix: requests might hang when using the "sendfile" and
"timer_resolution" directives on Linux.
*) Bugfix: requests might hang when using the "sendfile" and "aio_write"
directives with subrequests.
*) Bugfix: in the ngx_http_v2_module.
Thanks to Piotr Sikora.
*) Bugfix: a segmentation fault might occur in a worker process when
using HTTP/2.
*) Bugfix: requests might hang when using the "limit_rate",
"sendfile_max_chunk", "limit_req" directives, or the $r->sleep()
embedded perl method with subrequests.
*) Bugfix: in the ngx_http_slice_module.
Changes with nginx 1.11.12 24 Mar 2017
*) Bugfix: nginx might hog CPU; the bug had appeared in 1.11.11.
Changes with nginx 1.11.11 21 Mar 2017
*) Feature: the "worker_shutdown_timeout" directive.
*) Feature: vim syntax highlighting scripts improvements.
Thanks to Wei-Ko Kao.
*) Bugfix: a segmentation fault might occur in a worker process if the
$limit_rate variable was set to an empty string.
*) Bugfix: the "proxy_cache_background_update",
"fastcgi_cache_background_update", "scgi_cache_background_update",
and "uwsgi_cache_background_update" directives might work incorrectly
if the "if" directive was used.
*) Bugfix: a segmentation fault might occur in a worker process if
number of large_client_header_buffers in a virtual server was
different from the one in the default server.
*) Bugfix: in the mail proxy server.
Changes with nginx 1.11.10 14 Feb 2017
*) Change: cache header format has been changed, previously cached
responses will be invalidated.
*) Feature: support of "stale-while-revalidate" and "stale-if-error"
extensions in the "Cache-Control" backend response header line.
*) Feature: the "proxy_cache_background_update",
"fastcgi_cache_background_update", "scgi_cache_background_update",
and "uwsgi_cache_background_update" directives.
*) Feature: nginx is now able to cache responses with the "Vary" header
line up to 128 characters long (instead of 42 characters in previous
versions).
*) Feature: the "build" parameter of the "server_tokens" directive.
Thanks to Tom Thorogood.
*) Bugfix: "[crit] SSL_write() failed" messages might appear in logs
when handling requests with the "Expect: 100-continue" request header
line.
*) Bugfix: the ngx_http_slice_module did not work in named locations.
*) Bugfix: a segmentation fault might occur in a worker process when
using AIO after an "X-Accel-Redirect" redirection.
*) Bugfix: reduced memory consumption for long-lived requests using
gzipping.
Changes with nginx 1.11.9 24 Jan 2017
*) Bugfix: nginx might hog CPU when using the stream module; the bug had
appeared in 1.11.5.
*) Bugfix: EXTERNAL authentication mechanism in mail proxy was accepted
even if it was not enabled in the configuration.
*) Bugfix: a segmentation fault might occur in a worker process if the
"ssl_verify_client" directive of the stream module was used.
*) Bugfix: the "ssl_verify_client" directive of the stream module might
not work.
*) Bugfix: closing keepalive connections due to no free worker
connections might be too aggressive.
Thanks to Joel Cunningham.
*) Bugfix: an incorrect response might be returned when using the
"sendfile" directive on FreeBSD and macOS; the bug had appeared in
1.7.8.
*) Bugfix: a truncated response might be stored in cache when using the
"aio_write" directive.
*) Bugfix: a socket leak might occur when using the "aio_write"
directive.
Changes with nginx 1.11.8 27 Dec 2016
*) Feature: the "absolute_redirect" directive.
*) Feature: the "escape" parameter of the "log_format" directive.
*) Feature: client SSL certificates verification in the stream module.
*) Feature: the "ssl_session_ticket_key" directive supports AES256
encryption of TLS session tickets when used with 80-byte keys.
*) Feature: vim-commentary support in vim scripts.
Thanks to Armin Grodon.
*) Bugfix: recursion when evaluating variables was not limited.
*) Bugfix: in the ngx_stream_ssl_preread_module.
*) Bugfix: if a server in an upstream in the stream module failed, it
was considered alive only when a test connection sent to it after
fail_timeout was closed; now a successfully established connection is
enough.
*) Bugfix: nginx/Windows could not be built with 64-bit Visual Studio.
*) Bugfix: nginx/Windows could not be built with OpenSSL 1.1.0.
Changes with nginx 1.11.7 13 Dec 2016
*) Change: now in case of a client certificate verification error the
$ssl_client_verify variable contains a string with the failure
reason, for example, "FAILED:certificate has expired".
*) Feature: the $ssl_ciphers, $ssl_curves, $ssl_client_v_start,
$ssl_client_v_end, and $ssl_client_v_remain variables.
*) Feature: the "volatile" parameter of the "map" directive.
*) Bugfix: dependencies specified for a module were ignored while
building dynamic modules.
*) Bugfix: when using HTTP/2 and the "limit_req" or "auth_request"
directives client request body might be corrupted; the bug had
appeared in 1.11.0.
*) Bugfix: a segmentation fault might occur in a worker process when
using HTTP/2; the bug had appeared in 1.11.3.
*) Bugfix: in the ngx_http_mp4_module.
Thanks to Congcong Hu.
*) Bugfix: in the ngx_http_perl_module.
Changes with nginx 1.11.6 15 Nov 2016
*) Change: format of the $ssl_client_s_dn and $ssl_client_i_dn variables
has been changed to follow RFC 2253 (RFC 4514); values in the old
format are available in the $ssl_client_s_dn_legacy and
$ssl_client_i_dn_legacy variables.
*) Change: when storing temporary files in a cache directory they will
be stored in the same subdirectories as corresponding cache files
instead of a separate subdirectory for temporary files.
*) Feature: EXTERNAL authentication mechanism support in mail proxy.
Thanks to Robert Norris.
*) Feature: WebP support in the ngx_http_image_filter_module.
*) Feature: variables support in the "proxy_method" directive.
Thanks to Dmitry Lazurkin.
*) Feature: the "http2_max_requests" directive in the
ngx_http_v2_module.
*) Feature: the "proxy_cache_max_range_offset",
"fastcgi_cache_max_range_offset", "scgi_cache_max_range_offset", and
"uwsgi_cache_max_range_offset" directives.
*) Bugfix: graceful shutdown of old worker processes might require
infinite time when using HTTP/2.
*) Bugfix: in the ngx_http_mp4_module.
*) Bugfix: "ignore long locked inactive cache entry" alerts might appear
in logs when proxying WebSocket connections with caching enabled.
*) Bugfix: nginx did not write anything to log and returned a response
with code 502 instead of 504 when a timeout occurred during an SSL
handshake to a backend.
Changes with nginx 1.11.5 11 Oct 2016
*) Change: the --with-ipv6 configure option was removed, now IPv6
support is configured automatically.
*) Change: now if there are no available servers in an upstream, nginx
will not reset number of failures of all servers as it previously
did, but will wait for fail_timeout to expire.
*) Feature: the ngx_stream_ssl_preread_module.
*) Feature: the "server" directive in the "upstream" context supports
the "max_conns" parameter.
*) Feature: the --with-compat configure option.
*) Feature: "manager_files", "manager_threshold", and "manager_sleep"
parameters of the "proxy_cache_path", "fastcgi_cache_path",
"scgi_cache_path", and "uwsgi_cache_path" directives.
*) Bugfix: flags passed by the --with-ld-opt configure option were not
used while building perl module.
*) Bugfix: in the "add_after_body" directive when used with the
"sub_filter" directive.
*) Bugfix: in the $realip_remote_addr variable.
*) Bugfix: the "dav_access", "proxy_store_access",
"fastcgi_store_access", "scgi_store_access", and "uwsgi_store_access"
directives ignored permissions specified for user.
*) Bugfix: unix domain listen sockets might not be inherited during
binary upgrade on Linux.
*) Bugfix: nginx returned the 400 response on requests with the "-"
character in the HTTP method.
Changes with nginx 1.11.4 13 Sep 2016
*) Feature: the $upstream_bytes_received variable.
*) Feature: the $bytes_received, $session_time, $protocol, $status,
$upstream_addr, $upstream_bytes_sent, $upstream_bytes_received,
$upstream_connect_time, $upstream_first_byte_time, and
$upstream_session_time variables in the stream module.
*) Feature: the ngx_stream_log_module.
*) Feature: the "proxy_protocol" parameter of the "listen" directive,
the $proxy_protocol_addr and $proxy_protocol_port variables in the
stream module.
*) Feature: the ngx_stream_realip_module.
*) Bugfix: nginx could not be built with the stream module and the
ngx_http_ssl_module, but without ngx_stream_ssl_module; the bug had
appeared in 1.11.3.
*) Feature: the IP_BIND_ADDRESS_NO_PORT socket option was not used; the
bug had appeared in 1.11.2.
*) Bugfix: in the "ranges" parameter of the "geo" directive.
*) Bugfix: an incorrect response might be returned when using the "aio
threads" and "sendfile" directives; the bug had appeared in 1.9.13.
Changes with nginx 1.11.3 26 Jul 2016
*) Change: now the "accept_mutex" directive is turned off by default.
*) Feature: now nginx uses EPOLLEXCLUSIVE on Linux.
*) Feature: the ngx_stream_geo_module.
*) Feature: the ngx_stream_geoip_module.
*) Feature: the ngx_stream_split_clients_module.
*) Feature: variables support in the "proxy_pass" and "proxy_ssl_name"
directives in the stream module.
*) Bugfix: socket leak when using HTTP/2.
*) Bugfix: in configure tests.
Thanks to Piotr Sikora.
Changes with nginx 1.11.2 05 Jul 2016
*) Change: now nginx always uses internal MD5 and SHA1 implementations;
the --with-md5 and --with-sha1 configure options were canceled.
*) Feature: variables support in the stream module.
*) Feature: the ngx_stream_map_module.
*) Feature: the ngx_stream_return_module.
*) Feature: a port can be specified in the "proxy_bind", "fastcgi_bind",
"memcached_bind", "scgi_bind", and "uwsgi_bind" directives.
*) Feature: now nginx uses the IP_BIND_ADDRESS_NO_PORT socket option
when available.
*) Bugfix: a segmentation fault might occur in a worker process when
using HTTP/2 and the "proxy_request_buffering" directive.
*) Bugfix: the "Content-Length" request header line was always added to
requests passed to backends, including requests without body, when
using HTTP/2.
*) Bugfix: "http request count is zero" alerts might appear in logs when
using HTTP/2.
*) Bugfix: unnecessary buffering might occur when using the "sub_filter"
directive; the issue had appeared in 1.9.4.
Changes with nginx 1.11.1 31 May 2016
*) Security: a segmentation fault might occur in a worker process while
writing a specially crafted request body to a temporary file
(CVE-2016-4450); the bug had appeared in 1.3.9.
Changes with nginx 1.11.0 24 May 2016
*) Feature: the "transparent" parameter of the "proxy_bind",
"fastcgi_bind", "memcached_bind", "scgi_bind", and "uwsgi_bind"
directives.
*) Feature: the $request_id variable.
*) Feature: the "map" directive supports combinations of multiple
variables as resulting values.
*) Feature: now nginx checks if EPOLLRDHUP events are supported by
kernel, and optimizes connection handling accordingly if the "epoll"
method is used.
*) Feature: the "ssl_certificate" and "ssl_certificate_key" directives
can be specified multiple times to load certificates of different
types (for example, RSA and ECDSA).
*) Feature: the "ssl_ecdh_curve" directive now allows specifying a list
of curves when using OpenSSL 1.0.2 or newer; by default a list built
into OpenSSL is used.
*) Change: to use DHE ciphers it is now required to specify parameters
using the "ssl_dhparam" directive.
*) Feature: the $proxy_protocol_port variable.
*) Feature: the $realip_remote_port variable in the
ngx_http_realip_module.
*) Feature: the ngx_http_realip_module is now able to set the client
port in addition to the address.
*) Change: the "421 Misdirected Request" response now used when
rejecting requests to a virtual server different from one negotiated
during an SSL handshake; this improves interoperability with some
HTTP/2 clients when using client certificates.
*) Change: HTTP/2 clients can now start sending request body
immediately; the "http2_body_preread_size" directive controls size of
the buffer used before nginx will start reading client request body.
*) Bugfix: cached error responses were not updated when using the
"proxy_cache_bypass" directive.
Changes with nginx 1.9.15 19 Apr 2016
*) Bugfix: "recv() failed" errors might occur when using HHVM as a
FastCGI server.
*) Bugfix: when using HTTP/2 and the "limit_req" or "auth_request"
directives a timeout or a "client violated flow control" error might
occur while reading client request body; the bug had appeared in
1.9.14.
*) Workaround: a response might not be shown by some browsers if HTTP/2
was used and client request body was not fully read; the bug had
appeared in 1.9.14.
*) Bugfix: connections might hang when using the "aio threads"
directive.
Thanks to Mindaugas Rasiukevicius.
Changes with nginx 1.9.14 05 Apr 2016
*) Feature: OpenSSL 1.1.0 compatibility.
*) Feature: the "proxy_request_buffering", "fastcgi_request_buffering",
"scgi_request_buffering", and "uwsgi_request_buffering" directives
now work with HTTP/2.
*) Bugfix: "zero size buf in output" alerts might appear in logs when
using HTTP/2.
*) Bugfix: the "client_max_body_size" directive might work incorrectly
when using HTTP/2.
*) Bugfix: of minor bugs in logging.
Changes with nginx 1.9.13 29 Mar 2016
*) Change: non-idempotent requests (POST, LOCK, PATCH) are no longer
passed to the next server by default if a request has been sent to a
backend; the "non_idempotent" parameter of the "proxy_next_upstream"
directive explicitly allows retrying such requests.
*) Feature: the ngx_http_perl_module can be built dynamically.
*) Feature: UDP support in the stream module.
*) Feature: the "aio_write" directive.
*) Feature: now cache manager monitors number of elements in caches and
tries to avoid cache keys zone overflows.
*) Bugfix: "task already active" and "second aio post" alerts might
appear in logs when using the "sendfile" and "aio" directives with
subrequests.
*) Bugfix: "zero size buf in output" alerts might appear in logs if
caching was used and a client closed a connection prematurely.
*) Bugfix: connections with clients might be closed needlessly if
caching was used.
Thanks to Justin Li.
*) Bugfix: nginx might hog CPU if the "sendfile" directive was used on
Linux or Solaris and a file being sent was changed during sending.
*) Bugfix: connections might hang when using the "sendfile" and "aio
threads" directives.
*) Bugfix: in the "proxy_pass", "fastcgi_pass", "scgi_pass", and
"uwsgi_pass" directives when using variables.
Thanks to Piotr Sikora.
*) Bugfix: in the ngx_http_sub_filter_module.
*) Bugfix: if an error occurred in a cached backend connection, the
request was passed to the next server regardless of the
proxy_next_upstream directive.
*) Bugfix: "CreateFile() failed" errors when creating temporary files on
Windows.
Changes with nginx 1.9.12 24 Feb 2016
*) Feature: Huffman encoding of response headers in HTTP/2.
Thanks to Vlad Krasnov.
*) Feature: the "worker_cpu_affinity" directive now supports more than
64 CPUs.
*) Bugfix: compatibility with 3rd party C++ modules; the bug had
appeared in 1.9.11.
Thanks to Piotr Sikora.
*) Bugfix: nginx could not be built statically with OpenSSL on Linux;
the bug had appeared in 1.9.11.
*) Bugfix: the "add_header ... always" directive with an empty value did
not delete "Last-Modified" and "ETag" header lines from error
responses.
*) Workaround: "called a function you should not call" and "shutdown
while in init" messages might appear in logs when using OpenSSL
1.0.2f.
*) Bugfix: invalid headers might be logged incorrectly.
*) Bugfix: socket leak when using HTTP/2.
*) Bugfix: in the ngx_http_v2_module.
Changes with nginx 1.9.11 09 Feb 2016
*) Feature: TCP support in resolver.
*) Feature: dynamic modules.
*) Bugfix: the $request_length variable did not include size of request
headers when using HTTP/2.
*) Bugfix: in the ngx_http_v2_module.
Changes with nginx 1.9.10 26 Jan 2016
*) Security: invalid pointer dereference might occur during DNS server
response processing if the "resolver" directive was used, allowing an
attacker who is able to forge UDP packets from the DNS server to
cause segmentation fault in a worker process (CVE-2016-0742).
*) Security: use-after-free condition might occur during CNAME response
processing if the "resolver" directive was used, allowing an attacker
who is able to trigger name resolution to cause segmentation fault in
a worker process, or might have potential other impact
(CVE-2016-0746).
*) Security: CNAME resolution was insufficiently limited if the
"resolver" directive was used, allowing an attacker who is able to
trigger arbitrary name resolution to cause excessive resource
consumption in worker processes (CVE-2016-0747).
*) Feature: the "auto" parameter of the "worker_cpu_affinity" directive.
*) Bugfix: the "proxy_protocol" parameter of the "listen" directive did
not work with IPv6 listen sockets.
*) Bugfix: connections to upstream servers might be cached incorrectly
when using the "keepalive" directive.
*) Bugfix: proxying used the HTTP method of the original request after
an "X-Accel-Redirect" redirection.
Changes with nginx 1.9.9 09 Dec 2015
*) Bugfix: proxying to unix domain sockets did not work when using
variables; the bug had appeared in 1.9.8.
Changes with nginx 1.9.8 08 Dec 2015
*) Feature: pwritev() support.
*) Feature: the "include" directive inside the "upstream" block.
*) Feature: the ngx_http_slice_module.
*) Bugfix: a segmentation fault might occur in a worker process when
using LibreSSL; the bug had appeared in 1.9.6.
*) Bugfix: nginx could not be built on OS X in some cases.
Changes with nginx 1.9.7 17 Nov 2015
*) Feature: the "nohostname" parameter of logging to syslog.
*) Feature: the "proxy_cache_convert_head" directive.
*) Feature: the $realip_remote_addr variable in the
ngx_http_realip_module.
*) Bugfix: the "expires" directive might not work when using variables.
*) Bugfix: a segmentation fault might occur in a worker process when
using HTTP/2; the bug had appeared in 1.9.6.
*) Bugfix: if nginx was built with the ngx_http_v2_module it was
possible to use the HTTP/2 protocol even if the "http2" parameter of
the "listen" directive was not specified.
*) Bugfix: in the ngx_http_v2_module.
Changes with nginx 1.9.6 27 Oct 2015
*) Bugfix: a segmentation fault might occur in a worker process when
using HTTP/2.
Thanks to Piotr Sikora and Denis Andzakovic.
*) Bugfix: the $server_protocol variable was empty when using HTTP/2.
*) Bugfix: backend SSL connections in the stream module might be timed
out unexpectedly.
*) Bugfix: a segmentation fault might occur in a worker process if
different ssl_session_cache settings were used in different virtual
servers.
*) Bugfix: nginx/Windows could not be built with MinGW gcc; the bug had
appeared in 1.9.4.
Thanks to Kouhei Sutou.
*) Bugfix: time was not updated when the timer_resolution directive was
used on Windows.
*) Miscellaneous minor fixes and improvements.
Thanks to Markus Linnala, Kurtis Nusbaum and Piotr Sikora.
Changes with nginx 1.9.5 22 Sep 2015
*) Feature: the ngx_http_v2_module (replaces ngx_http_spdy_module).
Thanks to Dropbox and Automattic for sponsoring this work.
*) Change: now the "output_buffers" directive uses two buffers by
default.
*) Change: now nginx limits subrequests recursion, not simultaneous
subrequests.
*) Change: now nginx checks the whole cache key when returning a
response from cache.
Thanks to Gena Makhomed and Sergey Brester.
*) Bugfix: "header already sent" alerts might appear in logs when using
cache; the bug had appeared in 1.7.5.
*) Bugfix: "writev() failed (4: Interrupted system call)" errors might
appear in logs when using CephFS and the "timer_resolution" directive
on Linux.
*) Bugfix: in invalid configurations handling.
Thanks to Markus Linnala.
*) Bugfix: a segmentation fault occurred in a worker process if the
"sub_filter" directive was used at http level; the bug had appeared
in 1.9.4.
Changes with nginx 1.9.4 18 Aug 2015
*) Change: the "proxy_downstream_buffer" and "proxy_upstream_buffer"
directives of the stream module are replaced with the
"proxy_buffer_size" directive.
*) Feature: the "tcp_nodelay" directive in the stream module.
*) Feature: multiple "sub_filter" directives can be used simultaneously.
*) Feature: variables support in the search string of the "sub_filter"
directive.
*) Workaround: configuration testing might fail under Linux OpenVZ.
Thanks to Gena Makhomed.
*) Bugfix: old worker processes might hog CPU after reconfiguration with
a large number of worker_connections.
*) Bugfix: a segmentation fault might occur in a worker process if the
"try_files" and "alias" directives were used inside a location given
by a regular expression; the bug had appeared in 1.7.1.
*) Bugfix: the "try_files" directive inside a nested location given by a
regular expression worked incorrectly if the "alias" directive was
used in the outer location.
*) Bugfix: in hash table initialization error handling.
*) Bugfix: nginx could not be built with Visual Studio 2015.
Changes with nginx 1.9.3 14 Jul 2015
*) Change: duplicate "http", "mail", and "stream" blocks are now
disallowed.
*) Feature: connection limiting in the stream module.
*) Feature: data rate limiting in the stream module.
*) Bugfix: the "zone" directive inside the "upstream" block did not work
on Windows.
*) Bugfix: compatibility with LibreSSL in the stream module.
Thanks to Piotr Sikora.
*) Bugfix: in the "--builddir" configure parameter.
Thanks to Piotr Sikora.
*) Bugfix: the "ssl_stapling_file" directive did not work; the bug had
appeared in 1.9.2.
Thanks to Faidon Liambotis and Brandon Black.
*) Bugfix: a segmentation fault might occur in a worker process if the
"ssl_stapling" directive was used; the bug had appeared in 1.9.2.
Thanks to Matthew Baldwin.
Changes with nginx 1.9.2 16 Jun 2015
*) Feature: the "backlog" parameter of the "listen" directives of the
mail proxy and stream modules.
*) Feature: the "allow" and "deny" directives in the stream module.
*) Feature: the "proxy_bind" directive in the stream module.
*) Feature: the "proxy_protocol" directive in the stream module.
*) Feature: the -T switch.
*) Feature: the REQUEST_SCHEME parameter added to the fastcgi.conf,
fastcgi_params, scgi_params, and uwsgi_params standard configuration
files.
*) Bugfix: the "reuseport" parameter of the "listen" directive of the
stream module did not work.
*) Bugfix: OCSP stapling might return an expired OCSP response in some
cases.
Changes with nginx 1.9.1 26 May 2015
*) Change: now SSLv3 protocol is disabled by default.
*) Change: some long deprecated directives are not supported anymore.
*) Feature: the "reuseport" parameter of the "listen" directive.
Thanks to Yingqi Lu at Intel and Sepherosa Ziehau.
*) Feature: the $upstream_connect_time variable.
*) Bugfix: in the "hash" directive on big-endian platforms.
*) Bugfix: nginx might fail to start on some old Linux variants; the bug
had appeared in 1.7.11.
*) Bugfix: in IP address parsing.
Thanks to Sergey Polovko.
Changes with nginx 1.9.0 28 Apr 2015
*) Change: obsolete aio and rtsig event methods have been removed.
*) Feature: the "zone" directive inside the "upstream" block.
*) Feature: the stream module.
*) Feature: byte ranges support in the ngx_http_memcached_module.
Thanks to Martin Mlynář.
*) Feature: shared memory can now be used on Windows versions with
address space layout randomization.
Thanks to Sergey Brester.
*) Feature: the "error_log" directive can now be used on mail and server
levels in mail proxy.
*) Bugfix: the "proxy_protocol" parameter of the "listen" directive did
not work if not specified in the first "listen" directive for a
listen socket.
Changes with nginx 1.7.12 07 Apr 2015
*) Feature: now the "tcp_nodelay" directive works with backend SSL
connections.
*) Feature: now thread pools can be used to read cache file headers.
*) Bugfix: in the "proxy_request_buffering" directive.