Re: Upgrading Perl 5.8 program to 5.22

There haven't been many wide-sweeping changes between 5.8 and 5.22 that would immediately break your program.

The most obvious changes would be the much better handling of Unicode.

The annoying stuff for migrating to a new Perl version is that you need to collect all the missing prerequisites that likely have accumulated in your old Perl installation. I keep track of my prerequisites in a Makefile.PL even if I don't intend to distribute the software ever. This makes reinstallation of all prerequisites as easy as:

cpanm --installdeps .
[download]

You can test the migration to a new version of Perl by installing a separate version of Perl using perlbrew. That way, you have a low risk of ruining your existing installation.

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Re^2: Upgrading Perl 5.8 program to 5.22 by $h4X4_\|=73}{ (Monk) on May 23, 2016 at 16:44 UTC
The error I get when changing to 5.10 is "Undefined subroutine &Exporter::import called at C:/strawberry/perl/lib/CGI/Carp.pm line 371." That is the same message I get for any version higher. I'm kinda sure its because of the way I use Exporter in a module to keep all the objects and variables in scope through the program. Correct me if I'm wrong. Looking in the perl5100delta at perldoc. The "Incompatible Changes" >> "Recursive inheritance detected earlier" could be the thing that broke the program. I do not think I can do the magic I could with Exporter any more.	[reply]
Re^3: Upgrading Perl 5.8 program to 5.22 by davido (Cardinal) on May 23, 2016 at 17:00 UTC
Did you upgrade modules such as CGI::Carp after upgrading the Perl version? It seems more likely that an old version of CGI::Carp was relying on some behavior that has changed. Upgrading CGI::Carp to a newer version could fix the issue. Dave	[reply]
Re^4: Upgrading Perl 5.8 program to 5.22 by $h4X4_\|=73}{ (Monk) on May 23, 2016 at 17:17 UTC
~~Updating all the default modules was the first thing I did after installing Perl~~ I spoke to soon. Just rechecked and not all the modules where updated. It updated CGI::Carp but Exporter is still v5.63 not v5.72. Thanks for making me question myself.	[reply]
Re^5: Upgrading Perl 5.8 program to 5.22 by davido (Cardinal) on May 23, 2016 at 19:13 UTC
Re^6: Upgrading Perl 5.8 program to 5.22 by $h4X4_\|=73}{ (Monk) on May 24, 2016 at 00:17 UTC
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