On Tue, Nov 20, 2012 at 05:46:22PM -0800, Brion Vibber wrote:
"Current and immediately-previous" releases are also really hard to match up between projects on fast release cycles (like Chrome and Firefox which are pushing out new "major versions" every couple months) and those where "major versions" only change a few times per decade, like IE.
Supporting Chrome 22 (23 - 1) and supporting IE 9 (10 - 1) are totally different animals with different usage profiles. Really nobody should be running Chrome 22 -- it probably means your computer's broken and not installing updates -- but IE 9's all over the place -- as is 8.
Agreed. IE 9 is only supported from Vista onwards and Windows XP is 21.29% of our user base according to the latest stats¹. I'm not sure it's realistic to say that 20% of our user base may just "happen to work" by luck.
Regards, Faidon
¹: http://stats.wikimedia.org/wikimedia/squids/SquidReportOperatingSystems.htm