(2011). But still relevant. Here's a more recent comparison of version adoption rates from ArsTechnica: <a href="http://arstechnica.com/information-technology/2013/09/windows-8-more-widely-used-than-os-x-ie-still-on-the-rise/" rel="nofollow">http://arstechnica.com/information-technology/2013/09/window...</a><p>Or as an album of just the charts: <a href="http://imgur.com/a/3UM4J" rel="nofollow">http://imgur.com/a/3UM4J</a>
Isn't IE now silently auto-updating by default, just like Chrome?<p><a href="http://arstechnica.com/information-technology/2011/12/microsofts-new-automatic-update-plan-could-finally-spell-the-end-of-ie6/" rel="nofollow">http://arstechnica.com/information-technology/2011/12/micros...</a><p>Hopefully that will address much of the problem.
>Windows XP still accounts for 46.6% of Windows users<p>And yet it's suppose to be retired in ~6 months.<p>EDIT: Newer data isn't so bad. XP accounts for between 20%[1] and 10%[2] marketshare today.<p>[1] <a href="http://gs.statcounter.com/#os-ww-monthly-201210-201310" rel="nofollow">http://gs.statcounter.com/#os-ww-monthly-201210-201310</a><p>[2] <a href="https://stats.wikimedia.org/wikimedia/squids/SquidReportOperatingSystems.htm" rel="nofollow">https://stats.wikimedia.org/wikimedia/squids/SquidReportOper...</a>
Don't forget server versions of Windows. Server 2003's IE6 is going to be supported until 2015 and Server 2008's IE7 is going to be supported until 2020. And worst of all, Server 2012's IE10 is going to be supported until 2023 and can't be upgraded to IE11 without upgrading to R2.
It would be interesting if someone published the 'effective browser technology guide' which defined the set of things that would look the same on all browsers. It might end up with just CSS2 and tables though :-(