You do need to know what you are doing but the same can be said for apt or yum. Three very recent blockages/breakages I can think of are libcomerr/e2fsprogs, firefox2/3, and xorg 1.3/1.5.

These are the packages that would be unmerged: dev-qt/qtwebkit selected: 4.8.6-r1 protected: none omitted: none ....

#equery d dev-qt/qtwebkit * These packages depend on dev-qt/qtwebkit: app-office/libreoffice-4.4.3.2 (kde ?

I’ve been trying to submit ebuilds to the Gentoo Sunrise Overlay as well, however it is sometimes hard to get them reviewed.

Thus I’ve set up this overlay as an easier way to access ebuilds between my various machine and share them with the world in the process.

=dev-qt/qtwebkit-4.7.4:4) dev-qt/designer-4.8.6-r1 (webkit ?

(use --oneshot for things you don't want to add in to the world file, like system libs for example).

There's no harm having them around for a short period.

If you were unlucky enough to notice some broken packages after the update then you would be sure that they aren't a result of removing any loose dependencies.

I would guess that the next major "problem" update will be the migration to openrc once it goes stable (it was done on ~arch middle of last year iirc with only a few issues, primarily with networking changes).

Yep, definitely 1 on keeping up to date on the regular rather than in huge chunks.

After that I created a VM called gentoo in Virtualbox and Virtualbox autodetected the OS to be gentoo and took care of the rest.