WinNT6.1 (15)

2005 - 2010 4

2009-10	Microsoft Windows 7
2009-10	Microsoft Windows Server 2008 R2
2009-10	Microsoft Windows Hyper-V Server 2008 R2
2009-10	Microsoft Windows Server 2008 R2 Foundation

2010 - 2015 11

2010-05	Microsoft Windows MultiPoint Server 2010
2010-07	Microsoft Windows Embedded Standard 7
2010-10	Microsoft Windows HPC Server 2008 R2
2010-12	Microsoft Windows Storage Server 2008 R2
2011-03	Microsoft Windows Small Business Server 2011 Standard
2011-04	Microsoft Windows Home Server 2011
2011-05	Microsoft Windows MultiPoint Server 2011
2011-06	Microsoft Windows Small Business Server 2011 Essentials
2011-06	Microsoft Windows Storage Server 2008 R2 Essentials
2011-07	Microsoft Windows Thin PC
2011-09	Microsoft Windows Embedded POSReady 7

Kernels

WinNT10.0 (97xx-22000)