You can get the latest dev release from your closest CPAN mirror, or manually from MetaCPAN:

https://metacpan.org/release/MITHALDU/PPI-1.217_01

After Adam Kennedy made his last release of PPI in February 2011 with 1.215, the contributions of Revision: Tom Wyant, Olivier Mengué, David Steinbrunner, Matthew Horsfall (alh), massive amounts of work by Mike O'Regan, more help and most importantly the blessing of Adam Kennedy, moral and substantial support by Matt Trout, and some work by myself, the first release candidate of PPI in 3.5 years is now on CPAN, soon to be a real release.

The change log has a detailed listing and the git repository is even more detailed (it even has tags if you clone it). That said, the summary of the changes is:

a number of fixes to how Perl is parsed, notably around the x operator and some case sensitivity

many speed optimizations, allowing PPI to parse big files in reasonable time (the 1MB limit is now removed)

many many doc fixes

many more tests for previously untested code

PPI is now on Github

If you use PPI in any capacity, please test it and let me know what your results are, BOTH bad and good. Bad results preferrably in the github issues.

My expected release time for this is the early european evening on the 15th of August.

If you would like to test it, but need more time, please also let me know. I'm fully willing to push the release date back as far as is needed.