I have several Perl, use CGI qw(:standard) - scripts that are fine and well-tested, uses function style programming. I would like to upgrade our servers OS from Wheezy to Debian Stretch which does not have CGI.pm in the Perl core. I believe the upgrade to Stretch will leave CGI.pm intact (which the scripts need), but if not, what do I do? Should I consider PSGI/Plack? I'm happy with everything now but eventually something will have to be done. Is there an easy work-around?