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Windows Server
Version of Microsoft Windows
Logo
Screenshot
Initial releaseWindows NT 3.1 Advanced Server
(27 July 1993)
Latest releaseWindows Server 2022
(18 August 2021)
Latest previewCopper (build 25217)
(29 September 2022)

Windows Server (formerly Windows NT Server) is a group of operating systems for servers that Microsoft has been developing since July 27, 1993. The first OS that was released for this platform was Windows NT 3.1 Advanced Server. With the release of Windows Server 2003, the brand name was changed to Windows Server.

Microsoft's history of developing operating systems for server computers goes back to Windows NT 3.1 Advanced Server edition. Windows 2000 Server edition was the first OS to include Active Directory, DNS Server, DHCP Server, and Group Policy.

List of Windows Server Releases[edit | edit source]

Windows NT family

Name Version Code name Release date Support end date Notes
Windows NT 3.1 Advanced Server 3.10 Razzle 1993-07-27 2000-12-31 First release of Windows Server.
Windows NT 3.5 Server 3.50 Daytona 1994-09-21 2001-12-31
Windows NT 3.51 Server 3.51 1995-05-30 2002-09-30
Windows NT 4.0 Server 4.0 Shell Update Release 1996-07-31 2004-06-30
Windows 2000 Server 5.0 2000-02-17 2010-07-13
Windows Server 2003 5.2 Whistler Server 2003-04-24 2015-07-14
Windows Small Business Server 2003 Bobcat 2003-10-09 2015-07-14
Windows Home Server Quattro 2007-11-04 2013-08-01
Windows Server 2008 6.0 Longhorn 2008-02-27 2020-01-14[a] Development was reset in 2004.
Windows Small Business Server 2008 Cougar 2008-08-21 2020-01-14
Windows Essential Business Server 2008 Centro 2008-09-15 2020-01-14
Windows Server 2008 R2 6.1 2009-07-22 2020-01-14[a]
Windows MultiPoint Server 2010 Solution Server 2010-02-24 2020-07-14
Windows MultiPoint Server 2011 WMS 2 2011-05-12 2021-07-13
Windows Small Business Server 2011 SBS 7 2010-12-13 2020-01-14
Windows Home Server 2011 Vail 2011-04-06 2016-04-12
Windows Server 2012 6.2 Chidori 2012-09-04 2023-10-10[b]
Windows MultiPoint Server 2012 WMS 3 2012-10-30 2023-01-10
Windows Server 2012 R2 6.3 Blue 2013-10-18 2023-10-10[b]
Windows Server 2016 10.0 Redstone 2016-10-12 2027-01-11
Windows Server 2019 Redstone 5 2018-10-02
2018-11-13 (Re-Release)
2020-11-10 (SAC)
2029-01-09 (LTSC)
Windows Server 2022 Iron 2018-10-02 2031-10-14
Legend:
Never released
Old version
Older version, still supported
Current stable version
Latest preview version
Future release

Notes[edit | edit source]

  1. 1.0 1.1 Supported until 9 January 2024 via the paid Extended Security Updates service for volume licensed Standard, Datacenter and Enterprise copies.
  2. 2.0 2.1 Supported until 13 October 2026 via the paid Extended Security Updates service.