Kendo - 11:46 pm on Jul 11, 2012 (gmt 0)
After further testing I now find that whereas the success of our handshake was dependent on doctype, the problem gets worse... browsers have become too unreliable. Before you could compensate for irregularities and those updates would be good for a couple of years. Now there is a danger of losing support within a month.
IE version is unlikely to change, but with Fool and Clown one could run a pool on guessing their version number available at the end of the year and there will not be many winners.