https://techthoughts.info/windows-version-numbers/
Windows Server Version Releases
Server is now being released in two primary channels. You can read more about this in my post: Windows Release Channels Explained
| Major | Minor | Version | Build | Info | Release date |
|---|---|---|---|---|---|
| 10 | 0 | 1909 | 18363 | 2019 - SAC | 12 Nov 2019 |
| 10 | 0 | 1903 | 18362 | 2019 - SAC | 21 May 2019 |
| 10 | 0 | 1809 | 17763 | 2019 - LTSC | 13 Nov 2018 |
| 10 | 0 | 1803 | 17677 | Server 2019 Preview | 09 Jun 2018 |
| 10 | 0 | 1803 | 17134 | 2016 - SAC - Core Only | 30 April 2018 |
| 10 | 0 | 1709 | 16299 | 2016 - SAC - Core Only | 17 October 2017 |
| 10 | 0 | 1607 | 14393 | 2016 - RTM - LTSC | 26 September 2016 |
| 10 | 0 | 1010 | 14300 | 2016 - TP5 | 27 April 2016 |
| 10 | 0 | 10586 | 2016 - TP4 | 19 November 2015 | |
| 10 | 0 | 10514 | 2016 - TP3 | 19 August 2015 | |
| 10 | 0 | 10074 | 2016 - TP2 | 4 May 2015 | |
| 6 | 4 | 9841 | 2016 - TP1 | 1 October 2014 |
Windows 10 Release Versions
Windows 10 releases are guided by the new servicing models. You can find more information regarding the servicing option releases of Windows 10 here: Windows 10 release information
| Major | Minor | Version | Build | Code name | Marketing | Release date |
|---|---|---|---|---|---|---|
| 10 | 0 | 1909 | 18363 | 19H2 | November 2019 Update | November 12, 2019 |
| 10 | 0 | 1903 | 18362 | 19H1 | May 2019 Update | May 21, 2019 |
| 10 | 0 | 1809 | 17763 | Redstone 5 | October 2018 Update | November 13, 2018 |
| 10 | 0 | 1803 | 17134 | Redstone 4 | April 2018 Update | April 30, 2018 |
| 10 | 0 | 1709 | 16299 | Redstone 3 | Fall Creators Update | October 17, 2017 |
| 10 | 0 | 1703 | 15063 | Redstone 2 | Creators Update | April 5, 2017 |
| 10 | 0 | 1607 | 14393 | Redstone 1 | Anniversary Update | August 2, 2016 |
| 10 | 0 | 1511 | 10586 | Threshold 2 | November Update | November 10, 2015 |
| 10 | 0 | 1507 | 10240 | Threshold 1 | First release | July 29, 2015 |
Microsoft Operating System Versions
| Operating system | Version Number |
|---|---|
| Windows Server 2019 | 10.0 |
| Windows 10 | 10.0 |
| Windows Server 2016 | 10.0 |
| Windows 8.1 | 6.3 |
| Windows Server 2012 R2 | 6.3 |
| Windows 8 | 6.2 |
| Windows Server 2012 | 6.2 |
| Windows 7 | 6.1 |
| Windows Server 2008 R2 | 6.1 |
| Windows Vista | 6.0 |
| Windows Server 2008 | 6.0 |
| Windows XP 64-Bit Edition | 5.2 |
| Windows Server 2003 R2 | 5.2 |
| Windows Server 2003 | 5.2 |
| Windows XP | 5.1 |
| Windows 2000 | 5.0 |
| Windows Millenium | 4.9 |
| Windows 98 | 4.1 |
| Windows 95 | 4.0 |
| Windows NT 4.0 | 4.0 |
| Windows NT 3.51 | 3.51 |
| Windows NT 3.5 | 3.5 |
| Windows NT 3.1 | 3.1 |
Checking your Windows Version with PowerShell
In modern Operating Systems there are a lot of components that make up a full windows version number:
10.0.1607.14393.1794
This version number identifies the major, minor, version, build, and revision components of the server or client you are running. Full version information isn’t readily available in any of the GUI menus and it’s easiest to pull it from the following registry key:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion
I provide a detailed breakdown of the components that makeup a windows version number in the following post: Windows Release Channels Explained