in reply to Re^2: perlbrew is broken
in thread perlbrew is broken

As others have said, the simplest thing would've been to re-install Perlbrew. It takes a couple seconds to install and you don't need admin privs. After your re-update, please just re-install Perlbrew if you run into problems again. (Of course, re-installing another version of Perl will take longer, but certainly not as long as upgrading your system, reverting, and then re-upgrading.)