dev-php/phpDocumentor-2.9.0 is released. It is needed for PHP7 compatibility (see https://stackoverflow.com/questions/34958319/phpdocumentor-2-and-php-7-with-opcache-issues-in-doctrine)
Thank you for the bump request. You can help the maintainer with further information: Does a simple bump [1] work on your system? [1] https://wiki.gentoo.org/wiki/Custom_repository#Simple_version_bump_of_an_ebuild_in_the_local_overlay
We need to unbundle all of the dependencies that come with the new version first (bug 572232), it's a lot more work than it looks like =(
The incompatibility also seem to be caused by the bundled doctrine. The newer doctrine (>= 1.2.5) is already in the tree. However, I am unsure if phpDocumentor 2.8.x would work with a newer doctrine out of the box.
