Changes with upstream keepalive module 0.4 (2010-12-15):

    *) Bugfix: the "[alert] ... open socket ... left in connection ..."
       messages were logged on nginx worker process gracefull exit for
       each cached connection; the bug had appeared in 0.3.


Changes with upstream keepalive module 0.3 (2010-09-14):

    *) Bugfix: cached connections might be closed needlessly.
       Thanks to Martin Fjordvald.

    *) Bugfix: in memory allocation error handling on config creation.


Changes with upstream keepalive module 0.2 (2009-05-15):

    *) Feature: expiremental support for FastCGI (requires patches).

    *) Bugfix: invalid connections might be cached.


Changes with upstream keepalive module 0.1 (2008-10-24):

    *) The first public version.