Changes with nginx 0.7.38
*) Feature: authentication failures logging.
*) Bugfix: name/password in auth_basic_user_file were ignored after odd number of empty lines.
*) Bugfix: a segmentation fault occurred in a master process, if long path was used in unix domain socket; the bug had appeared in 0.7.36.
Changes with nginx 0.7.37
*) Bugfix: directives using upstreams did not work; the bug had appeared in 0.7.36.
Changes with nginx 0.7.36
*) Feature: a preliminary IPv6 support; the "listen" directive of the HTTP module supports IPv6.
*) Bugfix: the $ancient_browser variable did not work for browsers preset by a "modern_browser" directives.