Sign the dist as the last step before creating the archive. Take care not to modify/regenerate dist meta files or the manifest.

Error: gpg: Signature made Sat 23 Sep 2023 07:48:25 PM JST gpg: using RSA key 35ADBC3AF8355E845139D8965F3C0261CDB2E752 gpg: requesting key 5F3C0261CDB2E752 from hkp server keyserver.ubuntu.com gpg: Can't check signature: No public key ==> BAD/TAMPERED signature detected! <==

If you are using Build.PL define the {requires}{perl} = VERSION field. If you are using MakeMaker (Makefile.PL) you should upgrade ExtUtils::MakeMaker to 6.48 and use MIN_PERL_VERSION parameter. Perl::MinimumVersion can help you determine which version of Perl your module needs.

Add 'use warnings' (or its equivalents) to all modules, or convince us that your favorite module is well-known enough and people can easily see the modules warn when something bad happens.

Error: CLASS

Add all modules contained in this distribution to the META.yml field 'provides'. Module::Build or Dist::Zilla::Plugin::MetaProvides do this automatically for you.

This is not a critical issue. Currently mainly informative for the CPANTS authors. It might be removed later.