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 25 Nov 2006 06:26:29 AM JST gpg: using DSA key 9355E57651240396 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 a META.json to the distribution. Your buildtool should be able to autogenerate it.

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: SVK, SVK::Accessor, SVK::Command, SVK::Command::Add, SVK::Command::Admin, SVK::Command::Annotate, SVK::Command::Cat, SVK::Command::Checkout, SVK::Command::Cleanup, SVK::Command::Cmerge, SVK::Command::Commit, SVK::Command::Copy, SVK::Command::Delete, SVK::Command::Depotmap, SVK::Command::Describe, SVK::Command::Diff, SVK::Command::Help, SVK::Command::Ignore, SVK::Command::Import, SVK::Command::Info, SVK::Command::List, SVK::Command::Log, SVK::Command::Merge, SVK::Command::Mirror, SVK::Command::Mkdir, SVK::Command::Move, SVK::Command::Patch, SVK::Command::Propdel, SVK::Command::Propedit, SVK::Command::Propget, SVK::Command::Proplist, SVK::Command::Propset, SVK::Command::Pull, SVK::Command::Push, SVK::Command::Resolved, SVK::Command::Revert, SVK::Command::Smerge, SVK::Command::Status, SVK::Command::Switch, SVK::Command::Sync, SVK::Command::Update, SVK::Command::Verify, SVK::Config, SVK::Depot, SVK::Editor, SVK::Editor::ByPass, SVK::Editor::Checkout, SVK::Editor::Combine, SVK::Editor::Combiner, SVK::Editor::Composite, SVK::Editor::Delay, SVK::Editor::Diff, SVK::Editor::Dynamic, SVK::Editor::InteractiveCommitter, SVK::Editor::Merge, SVK::Editor::Patch, SVK::Editor::Rename, SVK::Editor::Serialize, SVK::Editor::Sign, SVK::Editor::Status, SVK::Editor::SubTree, SVK::Editor::Translate, SVK::Editor::TxnCleanup, SVK::Editor::View, SVK::Editor::XD, SVK::I18N, SVK::Log::ChangedPath, SVK::Log::ChangedPaths, SVK::Log::Filter::Output, SVK::Log::Filter::Selection, SVK::Log::Filter::Std, SVK::Merge, SVK::Mirror::Backend::SVNRaPipe, SVK::Mirror::Backend::SVNSync, SVK::MirrorCatalog, SVK::Notify, SVK::Patch, SVK::Patchset, SVK::Path, SVK::Path::Checkout, SVK::Path::Txn, SVK::Path::View, SVK::Resolve, SVK::Resolve::AraxisMerge, SVK::Resolve::Emacs, SVK::Resolve::FileMerge, SVK::Resolve::GVim, SVK::Resolve::GtkDiff, SVK::Resolve::Guiffy, SVK::Resolve::KDiff3, SVK::Resolve::Meld, SVK::Resolve::P4WinMerge, SVK::Resolve::TkDiff, SVK::Resolve::TortoiseMerge, SVK::Resolve::Vim, SVK::Resolve::XXDiff, SVK::Root::Checkout, SVK::Target::Universal, SVK::Test, SVK::Util, SVK::View, SVK::XD

Add a 'repository' resource to the META.yml via 'meta_add' accessor (for Module::Build) or META_ADD parameter (for ExtUtils::MakeMaker).

Add SECURITY(.pod|md). See Software::Security::Policy.

Add SECURITY(.pod|md) and add a contact address. See Software::Security::Policy.

Add CONTRIBUTING(.pod|md). See https://docs.github.com/en/communities/setting-up-your-project-for-healthy-contributions/setting-guidelines-for-repository-contributors.