in reply to In Need of Mentoring
For example, I know what I am doing should work with Perl as old as Perl 5.8.8, and I do a <use 5.008008;> to verify this.Eh, no. That use statement doesn't verify anything in that regard. It does prevent someone with 5.8.7 to run your code though.
However, should I make sure my code works with earlier versions of Perl?That depends. Who are you programming for? Who are your customers? Do you have to make a sacrifice to support 5.6? If so, what do you get out of it?
If you buy some meat, do you care whether the butcher uses modern knives, and do you avoid a butcher who has used the same knife for 20 years? Would you refuse to have your packages delivered by FedEx if they'd use a plane which was designed in the 20th century, opting for the bicycle courier who has written "use strict" on his 2009 bicycle frame? Do you only listen to music produced in the past couple of months?