Changes with nginx 0.3.57 09 Aug 2006
*) Feature: the $ssl_client_serial variable.
*) Bugfix: in the "!-e" operator of the "if" directive. Thanks to Andrian Budanstov.
*) Bugfix: while a client certificate verification nginx did not send to a client the required certificates information.
*) Bugfix: the $document_root variable did not support the variables in the "root" directive.
Igor Sysoev http://sysoev.ru/en/