It would be nice to have the upstream changelogs for some packages integrated into portage perhaps as a file in the package directory called something like app-foo/bar/UpstreamChangelog. Thanks
blowing up portage ? i don't like the idea if you install a package, mostly Changelog and other docs are installed on your system into /usr/share/doc/${PF}
Closing, tiz an oldy. Packages should be installing the changelog to /usr/share/doc/${PF} as Martin pointed out.