I know a couple of differences: 

open (FILE, "<", $file)  # legal 5.6 only
use warnings;            # legal 5.6 only

[download]

However you will find them all listed in the official docs here

The key word you missed is perldelta :-)

cheers

tachyon

In reply to Re: Any by tachyon
in thread Any major difference between perl 5.00503 and perl 5.6? by scottstef

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