Kenichi Ishigaki


Test::LatestPrereqs - test if the required module versions are big enough


In your test:

  use strict;
  use warnings;
  use Test::LatestPrereqs;


From the command line (shell):

  > test_prereqs_version --update


You may sometimes want to increase version requirement of a dependency for a distribution, because of a bug or a new feature. And you might immediately upgrade other distributions that require the same dependency. That's good.

However, I'm lazy. "I'll do it later, maybe when I add other features to them," and eventually I forget what or to which version I should upgrade. That's lame.

With this module, you can store preferred versions for notable dependencies in a configuration file, and test if dependencies for your distribution have the latest (or even greater) version requirement.


You shouldn't include this test in a distribution (even in the "xt" directory) as this is solely for a module author, and the preference may differ by person.



reads Makefile.PL/Build.PL (or the files you pass as arguments), gathers requirements/recommendations, tests their versions, and returns the required modules/versions. Note that this test may break when the Makefile.PL/Build.PL does weird/wicked things as this actually executes the files with locally mocked makemakers (but don't worry; it's you or your trusted friends who wrote those Makefile.PL/Build.PL. If you want a bot to run this test for modules you can't always trust, take a bit more care).


Kenichi Ishigaki, <>


Copyright (C) 2009 by Kenichi Ishigaki.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.