Comment 3 for bug 584016

It's difficult for me to provide the information you're requesting. This is a huge source tree moving very fast.
I'm currently aligning our releases on the upstream releases of Google Chrome from the Beta Channel and i plan on doing so until there's a Stable Channel for Linux.

Upstream only provides minimal changelogs: http://googlechromereleases.blogspot.com/search/label/Beta%20updates
This is what i re-use in our changelogs (the All+Linux parts only)

I'm attaching some raw data if you're willing to have a closer look.