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 07:58:09 AM JST gpg: using RSA key DA172575A8EC2FE9 gpg: Can't check signature: No public key --- SIGNATURE Sun Oct 26 07:58:09 2014 +++ @@ -1,6 +1,8 @@ SHA1 8afa955c90185a05e1e30a614b8e77b4494183c8 Changes -SHA1 7fd74ee45df16e8842565a04161453affa46e25d MANIFEST +SHA1 617df64c987e8136f8d20ba9ed8b9cc3fa6a8b40 MANIFEST SHA1 5f29cdcbfacb9c46ac155fff9844aceeb064aef1 MANIFEST.SKIP +SHA256 5e5b8c6244f9a9d41bc91e5869d5f1cc409ca5b14c4dca217de3e0a364f9b39b META.json +SHA256 4a4325474ea759a3cf6d99de818f96dc468b4b9f5287ec4abbeaadcba141a50e META.yml SHA1 a1dfd57bd3bd11546a2764490d4d87e1bf76133b Makefile.PL SHA1 ac8a71f2ef92516c12c4122d9f6f3c587443789e README SHA1 be5c7478c56ef2ac4cb68b68cd21df7b5f28a89f 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.