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deprecate(3perl) Perl Programmers Reference Guide deprecate(3perl)

deprecate - Perl pragma for deprecating the core version of a module

    use deprecate;  # always deprecate the module in which this occurs
    use if $] > 5.010, 'deprecate'; # conditionally deprecate the module

This module is used using "use deprecate;" (or something that calls "deprecate->import()", for example "use if COND, deprecate;").

If the module that includes "use deprecate" is located in a core library directory, a deprecation warning is issued, encouraging the user to use the version on CPAN. If that module is located in a site library, it is the CPAN version, and no warning is issued.

EXPORT

None by default. The only method is "import", called by "use deprecate;".

First example to "use deprecate;" was Switch.

Original version by Nicholas Clark

Copyright (C) 2009, 2011

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.10.0 or, at your option, any later version of Perl 5 you may have available.

2020-07-21 perl v5.28.1