Draft:Windows Server version history

Windows Server (formely Windows NT Server) is an operating system of Windows NT that is developed and released by Microsoft. The first OS that was released on July 27, 1993 with the release of Windows NT Server 3.51. The latest release is Windows Server 2022 released on August 18, 2021. Additionally, the latest preview build is Windows Server 2025, build 26236.5000 was released on June 12, 2024.

Windows NT Server 3.x
Windows NT Server 3.51 is a first major release of Windows Server was released on July 27, 1993, it is used the Windows 3.1 counterpart.

Windows NT Server 4.0
In July 1996, Microsoft has released Windows NT Server 4.0. It added the new user interface introduced in Windows 95 the previous year as a Windows 95 counterpart. In addition, it dropped support for the PowerPC, Alpha, and MIPS architectures. Microsoft updated Winsock to version 2 and IIS 2.0 and FrontPage are included.

Windows 2000 Server
Windows 2000 Server was released on February 17, 2000. It ended support on July 13, 2010.

Windows Server 2003
Microsoft has announced that Windows Server 2003 was released on April 24, 2003 as a Windows XP counterpart, also on December 2005, an updated version, Windows Server 2003 R2 was released in almost 20 years ago. It support ended on July 14, 2015.

Windows Server 2008/2008 R2
WIndows Server 2008 (codenamed Longhorn Server) was released on February 27, 2008 as a Windows Vista counterpart, and also Windows Server 2008 R2 (codenamed 7 Server) released on October 22, 2009 as a Windows 7 counterpart. Windows Server 2008/2008 R2 ended support officially on January 14, 2020, and ESU has ended on January 10, 2023.

Windows Server 2012/2012 R2
Microsoft has announced that Windows Server 2012 was released on September 4, 2012 as a Windows 8 counterpart, and Windows Server 2012 R2 released on October 30, 2013 as a Windows 8.1 counterpart. It ended mainstream support on October 9, 2018, and extended support ended on October 10, 2023.

Windows Server 2016
Microsoft announced that Windows Server 2016 was released on October 12, 2016 as a Windows 10 v1607 counterpart. Additionally, it was included operating system based Nano Server 2016.

Windows Server 2019
Windows Server 2019 was released on October 2, 2018 as a Windows 10 v1809 counterpart. by Microsoft. It includes the Hyper-V Server 2019. It ended mainstream support on January 9, 2024.

Windows Server 2022
Windows Server 2022 (codename Iron Server) is a latest major release of Windows Server released on August 18, 2021, it includes Windows 10 v21H2 (Iron) counterpart. Mainstream support until October 13, 2026, and extended support until October 14, 2031.

Windows Server 2025 (upcoming)
Microsoft has announced that Windows Server 2025 released on January 26, 2024 as a Windows 11 counterpart. It is the first ARM64 architecture and Windows Installation Setup overhaul. The first preview build 26040 of Windows Server 2025 was released on January 26, 2024. The preview will expire on September 15, 2024.

List of main members
Main members include:
 * Windows NT 3.1 Advanced Server (July 27, 1993)
 * Windows NT Server 3.5 (September 1994)
 * Windows NT Server 3.51 (May 1995)
 * Windows NT 4.0 Server (July 1996)
 * Windows 2000 (February 17, 2000)
 * Windows Server 2003 (April 24, 2003)
 * Windows Server 2003 R2 (December 2005)
 * Windows Server 2008 (February 27, 2008)
 * Windows Server 2008 R2 (October 22, 2009)
 * Windows Server 2012 (September 4, 2012)
 * Windows Server 2012 R2 (October 30, 2013)
 * Windows Server 2016 (October 12, 2016)
 * Windows Server 2019 (October 2, 2018)
 * Windows Server 2022 (August 18, 2021)
 * Windows Server 2025 (2024, upcoming)

Upcoming releases
Upcoming releases include:
 * Windows Server 2025