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

Error: Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer. gpg: Signature made Sun 26 Oct 2014 05:54:13 AM JST gpg: using RSA key DA172575A8EC2FE9 gpg: Can't check signature: No public key --- SIGNATURE Sun Oct 26 05:54:13 2014 +++ @@ -1,6 +1,8 @@ SHA1 727d8b795b9a2f6fe8796092703fb277293c8efd Changes -SHA1 9e7d606128cc3fa06a3c7d8c011e0a6731daa78f MANIFEST +SHA1 526746b5c243ecd4e364548dd57e5b311924d4f1 MANIFEST SHA1 5f29cdcbfacb9c46ac155fff9844aceeb064aef1 MANIFEST.SKIP +SHA256 6a4887c5013b3e662b71f05a0e8e59e5e0cbd6f896a12e6d10e3d91991e3ff66 META.json +SHA256 0fd9c0ebb6e100465dfe891a4532b50b5290992125eeffedb0e5fa2dc7e302ff META.yml SHA1 a1dfd57bd3bd11546a2764490d4d87e1bf76133b Makefile.PL SHA1 ac8a71f2ef92516c12c4122d9f6f3c587443789e README SHA1 7722ca7e3855d04519a05da4ffc8a69d0d61a293 lib/Crypt/Affine.pm ==> MISMATCHED content between SIGNATURE and distribution files! <==

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 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.