> Conversely, by not giving a shut off date, you get into the same situation Microsoft is in with Windows, where they have to support XP after over a decade Mi

> Conversely, by not giving a shut off date, you get into the same situation Microsoft is in with Windows, where they have to support XP after over a decade Microsoft does give end of support dates[0], merely awfully long ones, the calculation of which has been streamlined (something like min(10 years after first release, 2 years after last SP)). XP is in "Extended Support" phase (i.e security updates only), which ends in Apr 2014. And don't get me started on the "Components of the Major Product" scheme for IE[1] which is downright byzantine. [0]: http://support.microsoft.com/lifecycle/?ln=en-gb&c2=1173 http://support.microsoft.com/lifecycle/?ln=en-gb&c2=1173 [1]: http://support.microsoft.com/lifecycle/search/default.aspx?sort=PN&alpha=Internet+explorer&Filter=FilterNO http://support.microsoft.com/lifecycle/search/default.aspx?s...