Are older versions of perl compatable with perl 5? Here is the heading portion of a perl script I'm moving over to a server which is running perl 5: 
require("cgi-lib.pl");
print &PrintHeader;
&ReadParse;

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Will code written using this older version (I'm not sure what version it was run on) run on using a newer perl version? If not, what do I need to consider to upgrade the script (sort-of-speak)? Thanks. Chris

In reply to Mixing old and new perl versions by chriso

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