See Module::Release together with Perl::Version (resp. the perl-reversion tool in that).

I use a hacked up Makefile.PL to autogenerate the README and README.md files, but others use Dist::Zilla plugins or Dist::Minilla or Shipwright to do that.

Updating the Github repositories is as simple as invoking git push --all after the release. Module::Release does that I think.

In reply to Re: Making the CPAN/GitHub updating process painless by Corion
in thread Making the CPAN/GitHub updating process painless by nysus

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