A dangerous module, as I've learned the hard way today.
After installing it with perl 5.14.2, my perldoc essentially broke, displaying "ESC[blah" type of stuff everywhere that used to be in bold font.
Luckily, I was using local::lib and deleting the local user version of Pod::Perldoc fixed the issue. However, to be on the safe side, I nuked all the locally-installed modules (can't be arsed to fish out just the core ones), and right now I'm reinstalling all the modules that I usually use.
Are there more sinister issues introduced by updating other core modules?