# phpman > man > Test2::API::Breakage(3perl)

## NAME
    [Test2::API::Breakage](https://www.chedong.com/phpMan.php/perldoc/Test2%3A%3AAPI%3A%3ABreakage/markdown) - What breaks at what version

## DESCRIPTION
    This module provides lists of modules that are broken, or have been broken in the past, when
    upgrading [Test::Builder](https://www.chedong.com/phpMan.php/perldoc/Test%3A%3ABuilder/markdown) to use Test2.

## FUNCTIONS
    These can be imported, or called as methods on the class.

    %mod_ver = upgrade_suggested()
    %mod_ver = [Test2::API::Breakage](https://www.chedong.com/phpMan.php/perldoc/Test2%3A%3AAPI%3A%3ABreakage/markdown)->upgrade_suggested()
        This returns key/value pairs. The key is the module name, the value is the version number.
        If the installed version of the module is at or below the specified one then an upgrade
        would be a good idea, but not strictly necessary.

    %mod_ver = upgrade_required()
    %mod_ver = [Test2::API::Breakage](https://www.chedong.com/phpMan.php/perldoc/Test2%3A%3AAPI%3A%3ABreakage/markdown)->upgrade_required()
        This returns key/value pairs. The key is the module name, the value is the version number.
        If the installed version of the module is at or below the specified one then an upgrade is
        required for the module to work properly.

    %mod_ver = known_broken()
    %mod_ver = [Test2::API::Breakage](https://www.chedong.com/phpMan.php/perldoc/Test2%3A%3AAPI%3A%3ABreakage/markdown)->known_broken()
        This returns key/value pairs. The key is the module name, the value is the version number.
        If the installed version of the module is at or below the specified one then the module will
        not work. A newer version may work, but is not tested or verified.

## SOURCE
    The source code repository for Test2 can be found at <http://github.com/Test-More/test-more/>.

## MAINTAINERS
    Chad Granum <<exodist@cpan.org>>

## AUTHORS
    Chad Granum <<exodist@cpan.org>>

## COPYRIGHT
    Copyright 2020 Chad Granum <<exodist@cpan.org>>.

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

    See <http://dev.perl.org/licenses/>