Updated Windows 11 Version Numbers Build Numbers Major Minor Build Rev

Key Takeaways

• Windows 11 uses a 4-part build format: Major.Minor.Build.Revision (Example: 10.0.26200.7840).
• Major version (10) remains the same for Windows 10 and Windows 11
• Minor version (0) typically does not change and reflects the internal OS architecture version.
• The build number (for example, 22000, 22621, 22631, 26100, 26200) identifies the feature update version — 22000 corresponds to 21H2, 22621 to 22H2, 22631 to 23H2, 26100 to 24H2, and 26200 to 25H2.
• Revision number (e.g., .7840) increases with each monthly cumulative update (Patch Tuesday releases).
• Feature updates (like 24H2, 25H2) are released annually and introduce new features and platform changes.
• Cumulative updates (KB updates) are released monthly and improve security, stability, and performance without changing the feature version.

This post will try to keep the list up to date with the latest Windows 11 build numbers. The most recent major production release of Windows 11 is version 25H2 (build 10.0.26200.7840), updated through KB5077181 on 10th February 2026. Alongside 25H2, Windows 11 version 24H2 (build 10.0.26100.7840) and version 23H2 (build 10.0.22631.6649) also received cumulative updates on the same date. You can check out the following post for more details on Windows 11 end-of-life (EOL) dates and servicing timelines.

Windows 11 Version Numbers Build Numbers Major Minor Build Rev

Windows 11 follows an annual feature update model for production releases. The first version, Windows 11 21H2, was released in October 2021, followed by 22H2 in 2022, 23H2 in 2023, 24H2 in 2024, and the latest production release, 25H2 in 2025. Each feature update introduces a new build branch while continuing to receive monthly cumulative updates for security and quality improvements.

Windows 11 Versions Decoded – Video

This video explains the structure of Windows Versions Major Minor Build Rev details and discusses the possibilities of Windows 12 build versions.

• Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\CurrentBuildNumber

CurrentMajorVersionNumber = 10 CurrentMinorVersionNumber = 0 CurrentBuildNumber = 25947 UBR = 1000 (aka Rev).

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Major Minor Build Rev Details

Let’s examine Windows 11, including major and minor, build, and rev, in more detail. The table below provides details on these versions.

In the below table, I have taken an example of the latest Windows 11 production build number 10.0.26200.7840.

Windows 11 Version Numbers and Build Details

Windows 11 follows an annual feature update model, where each version is identified by a unique base build number. The base build represents the feature update branch, while the full build number follows the Major.Minor.Build.Revision format (for example, 10.0.22621.xxxx).

Versions Numbers Build Versions – Production Release

The following table gives the Windows 11 version numbers and build version details for the production release. There is only one production release of Windows 11 per year, unlike Windows 10. Microsoft uses the same format for Windows 11 production releases as well.

Windows 11 Versions – Production Release Build and Servicing Details

Microsoft releases annual feature updates for Windows 11, and each version continues to receive monthly cumulative updates (KB releases). The table below summarizes the latest production build versions, their associated KB updates, availability dates, and servicing timelines. Staying on a supported version ensures continued security updates and compliance.

Versions Vs. SKUs

According to Microsoft’s generic product key documentation, 15 Windows 11 versions (SKUs) are available. For more details, see Generic Windows 11 Product Keys | How To Retrieve Windows 11 Product Keys.

• Home, Pro, Pro for Workstations, Pro Education, and similar consumer/SMB editions receive 24 months of support from their release date.
• Enterprise, Education, and similar commercial editions receive 36 months of support from their release date.

Operating System Edition – KMS Client Product Key

KMS Client Product Keys, also known as Generic Volume License Keys (GVLKs), are used to activate Windows editions in environments that use a Key Management Service (KMS) server. These keys are publicly provided by Microsoft and are intended for volume licensing scenarios.

Different Release Channels

Microsoft released the Windows Insider version of Windows 11. For more details, refer to the Windows 11 Insider Program Registration Process. There is speculation that the Windows 11 version released via the Windows Insider program 21H2 – 22000.51 is Windows “Sun Valley.”

In the future, Windows 11 quality and feature updates will include many bug fixes and out-of-the-box hotfix updates. Thus, the quality of Windows 11 will stabilize with each new version.

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Version Numbers with Number of Build Versions – Non-Production Release

New versions of Windows 11 will be released once per year. However, Microsoft releases non-production Windows 11 OS updates weekly for Windows Insider Dev and Preview release channels. Microsoft follows the 21H2 model for Windows 11 Insider Builder.

Windows 11 Feature and Monthly Update

Windows 11 gets one major feature update every year, usually in the second half of the year. Each version is supported for 24 months for Home, Pro, Pro for Workstations, and Pro Education editions, and 36 months for Enterprise and Education editions. Microsoft recommends upgrading to the latest version as soon as possible to receive new features, better performance, and improved security.

Along with the yearly feature update, Windows 11 also receives monthly security updates, known as Patch Tuesday or the “B” release, on the second Tuesday of every month. These updates include security fixes and improvements and are cumulative, meaning they contain all previous fixes. This helps keep devices secure and up to date throughout the supported lifecycle of each version.

Resources

• Windows 10 Version Numbers Build Numbers Major Minor Build Rev | Easy Way to Understand Version Numbers
• Windows 11 OS Build Details

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Author

Anoop C Nair has been Microsoft MVP for 10 consecutive years from 2015 onwards. He is a Workplace Solution Architect with more than 22+ years of experience in Workplace technologies. He is a Blogger, Speaker, and Local User Group Community leader. His primary focus is on Device Management technologies like SCCM and Intune. He writes about technologies like Intune, SCCM,  Windows, Cloud PC, Windows, Entra, Microsoft Security, Career, etc.