Windows 11 Build Numbers Version Numbers & Release Dates

This article lists all the Windows 11 build numbers, Windows 11 version numbers, and release date details. The Windows 11 build numbers are frequently updated, and this article will also be updated frequently.

As per Microsoft, Windows 11 will have an annual feature update cadence. Windows 11 feature updates will be released in the second half of the calendar year. The new updates will come with 24 months of support for Home, Pro, Pro for Workstations, and Pro Education editions. For the Enterprise and Education editions, there are 36 months of support.

Microsoft has released two significant updates since the launch of Windows 11, namely 21H2 and 22H2. The newest version is 22H2, also referred to as the Windows 11 2022 update. Eligible devices should get the Windows 11 22H2 update via Windows Update.

Windows 11’s build number follows a standard format, which I will go into more detail about in one of the topics. If you’re seeking information on the Windows 11 version history, I’ve covered nearly all the updates in this article.

Recommended Article: Learn how to create SCCM Device Collection for Windows 11

Upgrading Windows 10 to Windows 11

Windows 11 will be offered as a free upgrade to eligible Windows 10 devices using a phased and measured approach with a focus on quality. The latest version of Windows 11 is version 22H2, and the update is also offered to customers via Windows Update. Listed below are some guides that will help you upgrade to Windows 11 in production.

How to Find Windows 11 Build Number

The build number shows the specific build of operating system that you are running. Every Windows operating system gets assigned with a unique build number. The build number of Windows 11 changes whenever there is a new version released.

For example, the Windows 11 versions 21H2 and 22H2 have the following build numbers.

  • Windows 11 Version 22H2 (original release) – The OS build number is 22621.
  • Windows 11 Version 21H2 (original release) – The OS build number is 22000.

There are many ways to find the build number of the Windows 11 OS, and this is the quickest method. Right-click on Start and select Run. In the Run box, type “winver” and press enter. This will bring up the About Windows pop-up, and here you can see the version and OS build of Windows 11.

For example, in the below screenshot, the “About Windows” shows Windows 11 version as 21H2 and OS build 22000.978. Click OK to close the window.

Windows 11 Versions Build Numbers
Windows 11 Versions | Windows 11 Build Numbers – About Windows 11

Useful Read: Download Windows 11 Administrative Templates

How to Find Windows 11 Version and Installed Edition

To find the Windows 11 version, build number and edition, perform these steps:

  • Click Start and type “About Your PC” in the search box and launch it.
  • On About your PC window, scroll-down and look for Windows Specifications.
  • Under Windows Specifications, you can find the Edition, Version, OS Build and installation date of Windows 11.
Windows 11 22H2 Build Number
Windows 11 22H2 Build Number

Windows 11 Major Minor Build Rev Details

If you notice the Windows 11 build number, it is represented in a particular format. In this section, I will explain about the Windows 11 major, minor, build, and rev in a bit more detail. Let’s pick the Windows 11 22H2 build number 10.0.22621.521 as an example.

The build number of Windows 11 22H2 original release is 10.0.22621.521. The below table explains how a build number is composed of and the version details.

NameBuild Details
Major10
Minor0
Build22621
Rev521
Windows 11 Versions and Windows 11 Build Numbers Explained

Note: For every new version of Windows 11 released, the build number is incremented. This build number remains the same for that version however only the Rev value changes as the new updates released for that Windows 11 version. This means for Windows 11 22H2, the build number will remain the same which is “22621” whereas the Rev value is incremented with every update.

Windows 11 Servicing Timeline

Windows 11 will receive monthly quality updates, including security and non-security updates, and a yearly release of new versions. To continue receiving support from Microsoft, users should always install the most recent version before the current version is no longer supported.

Windows 11 Enterprise, Education, IoT Enterprise editions will have servicing timeline of 36 months from the release date. Whereas Windows 11 Pro, Home, Pro Education will have servicing timeline of 24 months from the actual release date.

The servicing timeline for Windows 11 version 22H2 is detailed below, along with the start and end dates for support.

Windows 11 22H2 EditionServicing TimelineDate AvailableRetirement Date
Windows 11 22H2 Enterprise
Windows 11 22H2 Education
Windows 11 22H2 IoT Enterprise
36 months from release dateSep 20, 2022Oct 14, 2025
Windows 11 22H2 Pro
Windows 11 22H2 Pro Education
Windows 11 22H2 Pro for Workstations
Windows 11 22H2 Home
24 months from release dateSep 20, 2022Oct 8, 2024
Windows 11 22H2 Servicing Timeline

The servicing timeline for Windows 11 version 21H2 is detailed below, along with the start and end dates for support.

Windows 11 22H1 EditionServicing TimelineDate AvailableRetirement Date
Windows 11 21H2 Enterprise
Windows 11 21H2 Education
Windows 11 21H2 IoT Enterprise
36 months from release dateOct 4, 2021Oct 8, 2024
Windows 11 21H2 Pro
Windows 11 21H2 Pro Education
Windows 11 21H2 Pro for Workstations
Windows 11 21H2 Home
24 months from release dateOct 4, 2021Oct 10, 2023
Windows 11 21H2 Servicing Timeline

Windows 11 Build Numbers and Windows 11 Versions

The below table lists the Windows 11 build numbers and Windows 11 version numbers (production release) along with the release dates. When new versions of Windows 11 are released, they are added to the table.

Windows 11 VersionsWindows 11 Build NumbersKB ArticleWindows 11 Release Date
Windows 11 version 22H2 (10.0.22621.819)22621.819KB50199802022-11-08
Windows 11 version 22H2 (10.0.22621.755)22621.755KB50184962022-10-25
Windows 11 version 22H2 (10.0.22621.675)22621.675KB50195092022-10-18
Windows 11 version 22H2 (10.0.22621.674)22621.674KB50184272022-10-11
Windows 11 version 22H2 (10.0.22621.608)22621.608KB50173892022-09-30
Windows 11 version 22H2 (10.0.22621.525)22621.525KB50193112022-09-27
Windows 11 version 22H2 (10.0.22621.521)22621.5212022-09-20
Windows 11 version 21H2 (10.0.22000.1042)22000.1042KB50173832022-09-20
Windows 11 version 21H2 (10.0.22000.978)22000.978KB50173282022-09-13
Windows 11 version 21H2 (10.0.22000.918)22000.918KB50166912022-08-25
Windows 11 version 21H2 (10.0.22000.856)22000.856KB50166292022-08-09
Windows 11 version 21H2 (10.0.22000.832)22000.832KB50158822022-07-21
Windows 11 version 21H2 (10.0.22000.795)22000.795KB50158142022-07-12
Windows 11 version 21H2 (10.0.22000.778)22000.778KB50146682022-06-23
Windows 11 version 21H2 (10.0.22000.740)22000.740KB50161382022-06-20
Windows 11 version 21H2 (10.0.22000.739)22000.739KB50146972022-06-14
Windows 11 version 21H2 (10.0.22000.708)22000.708KB50140192022-05-24
Windows 11 version 21H2 (10.0.22000.675)22000.675KB50139432022-05-10
Windows 11 version 21H2 (10.0.22000.652)22000.652KB50126432022-04-25
Windows 11 version 21H2 (10.0.22000.613)22000.613KB50125922022-04-12
Windows 11 version 21H2 (10.0.22000.593)22000.593KB50115632022-03-28
Windows 11 version 21H2 (10.0.22000.556)22000.556KB50114932022-03-08
Windows 11 version 21H2 (10.0.22000.527)22000.527KB50104142022-02-15
Windows 11 version 21H2 (10.0.22000.493)22000.493KB50103862022-02-08
Windows 11 version 21H2 (10.0.22000.469)22000.469KB50083532022-01-25
Windows 11 version 21H2 (10.0.22000.438)22000.438KB50107952022-01-17
Windows 11 version 21H2 (10.0.22000.434)22000.434KB50095662022-01-11
Windows 11 version 21H2 (10.0.22000.376)22000.376KB50082152021-12-14
Windows 11 version 21H2 (10.0.22000.348)22000.348KB50072622021-11-22
Windows 11 version 21H2 (10.0.22000.318)22000.318KB50072152021-11-09
Windows 11 version 21H2 (10.0.22000.282)22000.282KB50067462021-10-21
Windows 11 version 21H2 (10.0.22000.258)22000.258KB50066742021-10-12
Windows 11 version 21H2 (10.0.22000.194)22000.1942021-10-04
Windows 11 Build Numbers and Windows 11 Versions

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2 Comments

  1. Avatar photo David Suycott says:

    greetings! will all future windows 11 builds start with “22”? 22xxxxxx.xx etc.

    thanks for all your articles! i’ve learned and solved many things because of your work.