What is a “dual-life” module? It’s mentioned in the perldelta for Perl 5.14.
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What is a “dual-life” module? It’s mentioned in the perldelta for Perl 5.14.
Dual life modules are modules that exist in two disconnected source repositories, commonly meaning both in the Perl core (those libraries distributed with perl), and on CPAN.
The CPAN version may be updated more frequently than the core version. The core version may have been tested on more platforms.
In the context of the link you gave, “adding as a dual-life module” means forking the CPAN distribution, possibly making some changes (such as normalizing documentation or licensing), and incorporating that fork into the core perl repository. This means that this module will now be installed by default when anyone installs this version of perl.