Assume two endpoint URLs, one using the current and one using an old version of a perl module foo.pm for our application. This 2008 article shows how to prevent conflicts (old app using new foo.pm or vv) for this situation under modperl:
http://www.slideshare.net/shixilun/module-versioning-with-apache-1x-and-modperl-1x ( 2008. HTML:Mason involved ) What is the new best practice? -- thanks, Tom