But all that is set to change under a new support policy announced today that is scheduled to take effect in about 18 months. Starting January 12, 2016, only the newest version of Internet Explorer for any given version of Windows will be supported. Older versions will cease to receive security fixes and other updates.
Once the new policy takes effect, Windows Vista and Server 2008 users must use Internet Explorer 9, and Windows 7 and Server 2008 R2 users must use Internet Explorer 11. Windows Server 2012 users must use Internet Explorer 10, while Windows 8.1 and Windows Server 2012 R2 users must have Internet Explorer 11.