Re: how do you determine which module needs to be updated while using perlbrew?

[ikegami]

Please provide the @INC and %ENV section of at the bottom of perl -V (uppercase "V")

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To answer your question ("how do you determine which module needs to be updated while using perlbrew?"), none need upgrading. You just installed a fresh Perl, so you have no modules. You will need to install (not upgrade) the modules you need. You should have a list of the dependencies of your programs.