<P> IE versions, over time, have had widely varying OS compatibility, ranging from being available for many platforms and several versions of Windows to only a few versions of Windows . Many versions of IE had some support for an older OS but stopped getting updates . The increased growth of the Internet in the 1990s and 2000s means that current browsers with small market shares have more total users than the entire market early on . For example, 90% market share in 1997 would be roughly 60 million users, but by the start of 2007 90% market share would equate to over 900 million users . The result is that later versions of IE6 had many more users in total than all the early versions put together . </P> <P> The release of IE7 at the end of 2006 resulted in a collapse of IE6 market share; by February 2007, market version share statistics showed IE6 at about 50% and IE7 at 29% . Regardless of the actual market share, the most compatible version (across operating systems) of IE was 5. x, which had Mac OS 9 and Mac OS X, Unix, and most Windows versions available and supported for a short period in the late 1990s (although 4. x had a more unified codebase across versions). By 2007, IE had much narrower OS support, with the latest versions supporting only Windows XP Service Pack 2 and above . Internet Explorer 5.0, 5.5, 6.0, and 7.0 (Experimental) have also been unofficially ported to the Linux operating system from the project IEs4Linux . </P> <Table> Windows <Tr> <Th> </Th> <Th> Years </Th> <Th> Layout engine </Th> <Th> 10, Server 2016 </Th> <Th> 8.1, Server 2012 R2 </Th> <Th> 8, Server 2012 </Th> <Th> 7, Server 2008 R2 </Th> <Th> Vista, Server 2008 </Th> <Th> Server 2003 </Th> <Th> XP </Th> <Th> ME </Th> <Th> 2000 </Th> <Th> 98 </Th> <Th> NT 4.0 </Th> <Th> 95 </Th> <Th> NT 3.51 </Th> <Th> NT 3.5 </Th> <Th> NT 3.1 </Th> <Th> 3.1 x </Th> </Tr> <Tr> <Th> IE 11 </Th> <Td> 2013 / 2015 </Td> <Td> Trident 7.0 </Td> <Td> Included </Td> <Td> Included </Td> <Td> N / A </Td> <Td> Yes with SP1 </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Th> IE 10 </Th> <Td> 2012 </Td> <Td> Trident 6.0 </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Included </Td> <Td> Yes with SP1 </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Th> IE 9 </Th> <Td> 2011 </Td> <Td> Trident 5.0 </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Yes </Td> <Td> Yes with SP2 </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Th> IE 8 </Th> <Td> 2009 </Td> <Td> Trident 4.0 </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Included </Td> <Td> Yes </Td> <Td> Yes with SP2 </Td> <Td> Yes with SP2 / SP3 </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Th> IE 7 </Th> <Td> 2006 </Td> <Td> Trident </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Included </Td> <Td> Yes with SP1 / SP2 </Td> <Td> Yes with SP2 / SP3 </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Th> IE 6 </Th> <Td> 2001 </Td> <Td> Trident </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Included </Td> <Td> Included </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Th> IE 5.5 </Th> <Td> 2000 </Td> <Td> Trident </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Included </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Th> IE 5 </Th> <Td> 1999 </Td> <Td> Trident </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Included </Td> <Td> Included with 98SE </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Yes </Td> </Tr> <Tr> <Th> IE 4 </Th> <Td> 1997 </Td> <Td> Trident </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Included 4.01 </Td> <Td> Yes </Td> <Td> Included </Td> <Td> Yes </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Yes </Td> </Tr> <Tr> <Th> IE 3 </Th> <Td> </Td> <Td> Spyglass </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Included </Td> <Td> Included </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> N / A </Td> <Td> Yes </Td> </Tr> <Tr> <Th> IE 2 </Th> <Td> 1995 </Td> <Td> Spyglass </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Included </Td> <Td> Included </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> Yes </Td> </Tr> <Tr> <Th> IE 1.5 </Th> <Td> </Td> <Td> Spyglass </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> Yes </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Th> IE 1 </Th> <Td> 1995 </Td> <Td> Spyglass </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> Non-free Plus! </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> </Table> <Tr> <Th> </Th> <Th> Years </Th> <Th> Layout engine </Th> <Th> 10, Server 2016 </Th> <Th> 8.1, Server 2012 R2 </Th> <Th> 8, Server 2012 </Th> <Th> 7, Server 2008 R2 </Th> <Th> Vista, Server 2008 </Th> <Th> Server 2003 </Th> <Th> XP </Th> <Th> ME </Th> <Th> 2000 </Th> <Th> 98 </Th> <Th> NT 4.0 </Th> <Th> 95 </Th> <Th> NT 3.51 </Th> <Th> NT 3.5 </Th> <Th> NT 3.1 </Th> <Th> 3.1 x </Th> </Tr>

What is the latest release of internet explorer