gzip related fixes:
*) do not disable gzip for MSIE 6.0 SV1 in "gzip_disable msie6"
*) nginx always sent "Vary: Accept-Encoding",
if both gzip_static and gzip_vary were on
cache management fixes:
*) separate cache loader process
*) use real file cache length, this fixes cache size counting for responses
without "Content-Length" header and 304 responses.
various header fixes:
*) allow to proxy_pass_header/fastcgi_pass_header "X-Accel-Redirect",
"X-Accel-Limit-Rate", "X-Accel-Buffering", and "X-Accel-Charset"
*) fix handling "Last-Modified" and "Accept-Ranges" for upstream responses
*) clear "Accept-Ranges" for SSI responses
fix variuos segfaults:
*) fix segfault if 400 or 414 errors are handled intricately
*) ngx_http_upstream_create() to cleanup the previous upstream after
internal redirect
various image filter fixes and features:
*) variables support in image_filter
*) fix transparency in GIF
*) fix alpha-channel transparency in PNG
*) image_filter_transparency
various SSL fixes and features:
*) $ssl_client_verify
*) "ssl_verify_client ask" was changed to "ssl_verify_client optional"
*) ssl_crl
*) delete OpenSSL pre-0.9.7 compatibility: the sources were not actually
compatible with OpenSSL 0.9.6 since ssl_session_cache introduction
*) fix memory corruption in $ssl_client_cert
*) issue SNI warning instead of failure: this is too common case
*) use ngx_log_error(), since OpenSSL does not set an error on the failure
*) add SNI support in -V output
various limit_req and limit_conn fixes:
*) fix client write event handling in ngx_http_limit_req_module
*) make limit_req to conform to the leaky bucket algorithm
*) limit_req_log_level
*) limit_conn_log_level
various perl fixes:
*) fix ngx_http_send_special() for subrequests handled by perl
*) allow perl "sub{..."
*) restore environ, this fixes segfault on reconfiguration failure when
perl module creates new environment
*) optimize error handling
*) use ngx_conf_set_str_array_slot() for perl_require
*) allow several perl_modules
FastCGI fixes:
*) continue to parse available fastcgi record after a split header,
this fixes the erroneous message "upstream prematurely closed connection
while reading response header from upstream"
*) fix a garbage in a split fastcgi header
*) refactor fastcgi stderr handling
win32 fixes:
*) ngx_http_set_exten() is always successful since 0.3.46
*) skip URI trailing dots under Win32
*) use caseless regex locations on caseless filesystems: MacOSX, Win32, Cygwin
r2909, r2910, r2922, r2923, r2924, r2925, r2929:
various win32 fixes:
*) use no-threads for Unix builds only
*) Win32 returns ERROR_PATH_NOT_FOUND instead of ERROR_FILE_NOT_FOUND
*) add trailing zero to a file name in ngx_win32_rename_file()
*) fix logging in ngx_win32_rename_file()
*) allow shared memory segments more than 4G
*) fix memory leak in successful case
*) log shared memory name in failure case
*) test that zone has the same addresses in different processes
*) add drive letter for Win32 root path
*) log GetExitCodeProcess()'s errno
*) test premature process termination
*) fix debug logging
*) exit if no workers could not be started
*) do not quit old workers if no new workers could not be started
*) a signaller process should stop configuration processing just after
it is able to get pid file, this allows to not open log files, etc.
*) win32 master process had aready closed listening sockets
various proxy/fastcgi cache features and fixes:
*) report about proxy/fastcgi_store and proxy/fastcgi_cache incompatibility
*) delete useless r->cache->uses
*) proxy_cache_use_stale/fastcgi_cache_use_stale updating
*) inherit proxy_set_header, proxy_hide_header, and fastcgi_hide_header
only if cache settings are similar
*) add response file uniq while loading cold cache on demand
various ./configure fixes:
*) use md5/sha1 in OpenSSL only if OpenSSL is used
*) stop ./configure at once on library failure
*) librt must be tested before creating Makefile
the bug has been introduced in r2817
fix a pool growing and CPU usage for multi-requests keepalive connections:
*) keepalive_requests
*) try to reuse last 4 free large allocation links
*) do not test a pool block space if we can not allocated from
the block 4 times
