One of the things I have to review periodically is what browsers people are using. I am looking for a few things specifically. I don’t really care which browser is edging out the number 1 spot. No, I’m generally looking at the bottom of the scale, to which browsers are falling out of use, and are safe to discontinue testing on.
I’m currently particularly interested in the stats for Internet Explorer 7 and Firefox 3.6. Why those 2? Starting with Firefox 5, Mozilla implemented automatic upgrades similar to (although a bit more manual than) the upgrades to Google Chrome. And if you look at the stats for Firefox 5+ or Chrome, you see very quick abandonment of preview versions when a new version comes out. Firefox 4 never got much traction, but Firefox 3.6 had a lot of holdouts that either upgraded and then rolled back or never upgraded at all.