Changes with nginx 0.8.46 19 Jul 2010
*) Change: now the "proxy_no_cache", "fastcgi_no_cache",
"uwsgi_no_cache", and "s?gi_no_cache" directives
affect on a cached
response saving only.
*) Feature: the "proxy_cache_bypass",
"fastcgi_cache_bypass",
"uwsgi_cache_bypass", and "s?gi_cache_bypass"
directives.
*) Bugfix: nginx did not free memory in cache keys zones if there was
an error during working with backend: the memory was freed only
after inactivity time or on memory low condition.
--
Igor Sysoev
http://sysoev.ru/en/