Changelog for Themes, Specifically WPMU-Nelo

Would it be possible to start including a changelog on all theme pages (or in the downloads) indicating which files have been modified in upgrades?

For now, can anyone please tell us what file(s) have changed in WPMU-Nelo 2.1.7?

I've hacked Nelo to bits and primarily used child files, but a couple edits have been required to parent files. For instance, just moving functions.php to the child folder generates the white page of doom.