Another fedup upgrade brought me up to Fedora 19 a couple of weeks ago. Pre-upgrade, my outstanding oom-killer bug seemed to get worse before it got better. Since I consider it a last resort to change likely unrelated variables in the face of a problem (entire OS), I stuck it out on Fedora 18 until, luckily, a kernel update arrived that seemed to stabilize the issue (inadvertently or otherwise, 3.10.7). With a known good kernel available in both new and old, it paved the way for upgrade.

Stability has persisted, despite the fact that I am still on my legacy hardware, three graphics cards, four monitors setup. I am experiencing a problem with pidgin, for which I have opened a new bug. Such is technology.