Hi $h4X4_|=73}{,

How big of an overhaul your program would need really depends - there is plenty of Perl code that runs fine on Perl 5.24 all the way down to 5.6 and even lower. If you do want to try out an upgrade, I'd recommend you don't jump directly from 5.8 to the latest version, instead run your script on 5.10, 5.12, 5.14 etc. all the way up to 5.24. The reason is that quite a few features went through deprecation cycles where Perl would first warn that a feature was deprecated, and the feature wasn't actually removed until a later version. That is admittedly a bit tedious but there's perlbrew to help you, and if you have tests those will help very much as well - and if you don't, it's never too late to add at least a few smoke tests :-)

Hope this helps,
-- Hauke D