Upgraded my Movable Type installation to 3.15 overnight. Overall it went far more smoothly than I had expected: the way some people were carrying on, you’d think this upgrade was equivalent to a Linux kernel rebuild. It took a few minutes to back up all my blog entries, a couple of hours, at most, to upgrade Movable Type, and another couple of hours to rework my Map Room individual templates so that they’d handle TypeKey registration. Everything seems to work at that end, but there’s no guarantee things won’t go blooey over here once I click on the “Save” button. Crossing my fingers.