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 Sat 13 Sep 2014 10:22:38 PM JST gpg: using RSA key DA172575A8EC2FE9 gpg: Can't check signature: No public key --- SIGNATURE Sat Sep 13 22:22:39 2014 +++ @@ -1,6 +1,8 @@ SHA1 5400fb3069afdb6e284f814c8488eb59015e1ef7 Changes -SHA1 e3db426972367ad7b91ffd5df835c49390f4ed97 MANIFEST +SHA1 9167254c1f84867488a77b36c4c5e2a2d7cdc292 MANIFEST SHA1 5f29cdcbfacb9c46ac155fff9844aceeb064aef1 MANIFEST.SKIP +SHA256 223524841871dc80a1bbe5e9e11a3ceb7c10120c2da69cf9acfc553aaa769ae1 META.json +SHA256 90bc4bfea20263ecb72df6bcd838664855d005575d095097b629bd8a7ea300c1 META.yml SHA1 7bd376ce028e6759e966b73dd4beb8cbccef9806 Makefile.PL SHA1 a00c9af8c7aae5fb5fdbd465f0fcd683afacfd07 README SHA1 6632bb70713aa14561fb845fb2151fea17d33931 lib/WWW/OReillyMedia/Store.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.