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 14 Sep 2014 08:37:46 PM JST gpg: using RSA key DA172575A8EC2FE9 gpg: Can't check signature: No public key --- SIGNATURE Sun Sep 14 20:37:46 2014 +++ @@ -1,6 +1,8 @@ SHA1 c42aa4a0b6c08de42065b4ba01e755096a497056 Changes -SHA1 0f083a3b5222e999d1b9fecc960bb669ceef3733 MANIFEST +SHA1 d2a83bd11f9bcd0f9ac52d4b8be95f1f63e4bdd6 MANIFEST SHA1 5f29cdcbfacb9c46ac155fff9844aceeb064aef1 MANIFEST.SKIP +SHA256 6a609762827f389860b335d609a3dd33fd6012dda1f00471334893e40228ecd0 META.json +SHA256 1dd52d043373cdc537a40af85bdf9a86b40d8d371c56820a6001dd31da00ee57 META.yml SHA1 6fc27a282207eef45dbe74a449bce81f862bc43a Makefile.PL SHA1 e392f1d5ad36ad44dd0aa9ab465fcb83d64e1e5e README SHA1 d283de35217f77718d02534f89e9575a4722a00b lib/LWP/UserAgent/Anonymous.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.