NAME

Module::CheckLatestVersion - Warn/die when a module is not the latest version

VERSION

This document describes version 0.002 of Module::CheckLatestVersion (from Perl distribution Module-CheckLatestVersion), released on 2026-04-08.

SYNOPSIS

In Your/Module.pm:

package Your::Module;

use Module::CheckVersion; # automatically exports 'check_latest_version'

our $VERSION = 1.23;
our $AUTHORITY = 'cpan:PERLANCAR';

check_latest_version();

If module is not the latest version (checked against authority) then a warn message is displayed. If the die option is set, program will die.

DESCRIPTION

This module can be used to check other module's version against latest version in authority. Authority can be CPAN or DarkPAN or other schemes that are supported by Module::CheckVersion.

Checking against authority is cached, by default 3600 seconds (default from Cache::File::Simple).

This can be used to ensure that scripts use the latest version of a module.

FUNCTIONS

check_latest_version

Usage:

check_latest_version([ \%opts, ] [ $mod ])

Check module $mod against authority (default is CPAN), using Module::CheckVersion. $mod defaults to the caller's package. If module is not the latest version, a warning is emitted.

When one of these environment variables are set, will skip checking (no-op): HARNESS_ACTIVE, RELEASE_TESTING, AUTOMATED_TESTING, PERL_MODULE_CHECKLATESTVERSION_SKIP.

Options:

  • die

    Bool. If set to true, will die instead of warn.

ENVIRONMENT

PERL_MODULE_CHECKLATESTVERSION_OPT_DIE

Bool. Set default value for the die option.

PERL_MODULE_CHECKLATESTVERSION_SKIP

Bool. Can be set to true to skip checking.

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Module-CheckLatestVersion.

SOURCE

Source repository is at https://github.com/perlancar/perl-Module-CheckLatestVersion.

SEE ALSO

Module::CheckVersion

AUTHOR

perlancar <perlancar@cpan.org>

CONTRIBUTING

To contribute, you can send patches by email/via RT, or send pull requests on GitHub.

Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via:

% prove -l

If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me.

COPYRIGHT AND LICENSE

This software is copyright (c) 2026 by perlancar <perlancar@cpan.org>.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Module-CheckLatestVersion

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.