Windows 11 Updates, Versions/Build Number & Release Dates

In this post, I will list Windows 11 updates, versions/build information, and release dates. I will also include additional details such as KB number and end-of-servicing timelines for each update.

As of today, version 25H2 is the latest Windows 11 feature update, released by Microsoft on 30 September 2025. Version 25H2 is an enablement package based on 24H2. Microsoft has also released version 26H1; however, it is primarily targeted at newer devices that support the latest innovations. Specific devices, such as those powered by Qualcomm Snapdragon® X2 Series processors, are expected to ship with the 26H1 update.

Therefore, for enterprises, 25H2 is still the latest feature update you can deploy and manage either manually or via Microsoft Intune. For deploying Windows 11 25H2 via Intune, refer to the post Upgrade to Windows 11 25H2 Using Intune.

Windows 11 Release History

The table below summarizes the Windows 11 update history with base build information. In the later sections, I will list the updates released for these major versions along with their release dates. It is important to note that if you are on version 23H2, it is approaching the end of its servicing period. Therefore, I recommend upgrading to a later version, ideally the latest major version of Windows 11, to benefit from the most up-to-date features and bug fixes.

VersionRelease DateBase Build on AvailabilityKB ArticleEnd of Servicing
26H1February 10, 202628000.1KB5077179March 13, 2029
25H2September 30, 202526200.6584KB5066835October 10, 2028
24H2October 1, 202426100.1742KB5044284October 12, 2027
23H2October 31, 202322631.2428KB5031455November 10, 2026
22H2September 20, 202222621.521KB5019311October 14, 2025
21H2October 4, 202122000.194KB5006674October 8, 2024

Windows 11 Feature Update Cadence

Windows 11 follows an annual feature update cadence, with Microsoft releasing one feature update each year in the second half of the calendar year. These feature updates are cumulative, which means they include previously released fixes along with new features, improvements, and platform changes. For servicing, each Windows 11 feature update receives 24 months of support for Home, Pro, Pro Education, and Pro for Workstations, and 36 months of support for Enterprise and Education editions.

The first feature update for Windows 11 was version 22H2, released on September 20, 2022, and the original Windows 11 release was version 21H2, released on October 4, 2021.

Windows 11 Quality Update Cadence

Windows 11 quality updates are delivered on a monthly cadence and include both security fixes and non-security fixes for supported versions. These updates are typically published on the second Tuesday of each month, although additional out-of-band releases can be issued at any time when needed to address urgent issues. This monthly servicing model is designed to keep devices secure, stable, and up to date between annual feature updates.

Types of Windows Updates

The table below offers a high-level overview of the various update types available for Windows 11 devices. For more detailed information, refer to Windows client updates, channels, and tools | Microsoft Learn.

Update TypeDescription
Feature updatesAnnual Windows version updates that add new features and functionality.
Quality updatesRegular cumulative updates that include both security and nonsecurity fixes. Typically released on the second Tuesday of each month.
Servicing stack updatesUpdates to the component that installs Windows updates.
Driver updatesUpdates for hardware drivers applicable to your devices.
Microsoft product updatesUpdates for other Microsoft products, such as Office.

Update Type Legend

The table below shows a shorthand for update types. B is the monthly security release, D is the optional non-security preview release, OOB is out-of-band, and A is the initial version availability row. Older history rows can also show C for optional preview releases.

TypeMeaning
AInitial version availability / base release build
BMonthly security update release
COptional preview release (older naming)
DOptional non-security preview release
OOBOut-of-band release

Windows 11 Version 26H1 Releases

As already discussed above, Windows 11 version 26H1 is not a broad, general availability feature update release. Instead, it is primarily targeted at specific new hardware platforms and OEM-preinstalled devices, particularly those designed to support next-generation capabilities such as AI-powered experiences. To know more about 26H1, refer to the link: What to know about Windows 11, version 26H1 – Windows IT Pro Blog.

VersionBuild NumberTypeKB ArticleRelease Date
26H128000.1719BKB5079466March 10, 2026
26H128000.1643DKB5077239February 24, 2026
26H128000.1575BKB5077179February 10, 2026
26H128000.1ABase releaseFebruary 10, 2026
End of Servicing: March 13, 2029

Windows 11 Version 25H2 Releases

Windows 11 version 25H2 is a general availability feature update delivered as an enablement package from 24H2, providing incremental improvements, security updates, and a streamlined upgrade experience. For deploying Windows 11 25H2 via Intune, refer to the post Upgrade to Windows 11 25H2 Using Intune.

VersionBuild NumberTypeKB ArticleRelease Date
25H226200.8039OOBKB5085516March 21, 2026
25H226200.8037BKB5079473March 10, 2026
25H226200.7922DKB5077241February 24, 2026
25H226200.7840BKB5077181February 10, 2026
25H226200.7705DKB5074105January 29, 2026
25H226200.7628OOBKB5078127January 24, 2026
25H226200.7627OOBKB5077744January 17, 2026
25H226200.7623BKB5074109January 13, 2026
25H226200.7462BKB5072033December 9, 2025
25H226200.7309DKB5070311December 1, 2025
25H226200.7171BKB5068861November 11, 2025
25H226200.7019DKB5067036October 28, 2025
25H226200.6901OOBKB5070773October 20, 2025
25H226200.6899BKB5066835October 14, 2025
25H226200.6584ABase releaseSeptember 30, 2025
End of Servicing: October 10, 2028

Windows 11 Version 24H2 Releases

Windows 11 version 24H2 is a major feature update introducing platform enhancements, AI-driven capabilities, and significant performance and security improvements across supported devices. For deploying Windows 11 24H2 via Intune, refer to the post Upgrade to Windows 11 24H2 Using Intune.

VersionBuild NumberTypeKB ArticleRelease Date
24H226100.8039OOBKB5085516March 21, 2026
24H226100.8037BKB5079473March 10, 2026
24H226100.7922DKB5077241February 24, 2026
24H226100.7840BKB5077181February 10, 2026
24H226100.7705DKB5074105January 29, 2026
24H226100.7628OOBKB5078127January 24, 2026
24H226100.7627OOBKB5077744January 17, 2026
24H226100.7623BKB5074109January 13, 2026
24H226100.7462BKB5072033December 9, 2025
24H226100.7309DKB5070311December 1, 2025
24H226100.7178OOBKB5072359November 18, 2025
24H226100.7171BKB5068861November 11, 2025
24H226100.7019DKB5067036October 28, 2025
24H226100.6905OOBKB5070881October 23, 2025
24H226100.6901OOBKB5070773October 20, 2025
24H226100.6899BKB5066835October 14, 2025
24H226100.6725DKB5065789September 29, 2025
24H226100.6588OOBKB5068221September 22, 2025
24H226100.6584BKB5065426September 9, 2025
24H226100.5074DKB5064081August 29, 2025
24H226100.4946BKB5063878August 12, 2025
24H226100.4770DKB5062660July 22, 2025
24H226100.4656OOBKB5064489July 13, 2025
24H226100.4652BKB5062553July 8, 2025
24H226100.4484DKB5060829June 26, 2025
24H226100.4351OOBKB5063060June 11, 2025
24H226100.4349BKB5060842June 10, 2025
24H226100.4202DKB5058499May 28, 2025
24H226100.4066OOBKB5061977May 27, 2025
24H226100.4061BKB5058411May 13, 2025
24H226100.3915DKB5055627April 25, 2025
24H226100.3775BKB5055523April 8, 2025
24H226100.3624DKB5053656March 27, 2025
24H226100.3476BKB5053598March 11, 2025
24H226100.3323DKB5052093February 25, 2025
24H226100.3194BKB5051987February 11, 2025
24H226100.3037DKB5050094January 28, 2025
24H226100.2894BKB5050009January 14, 2025
24H226100.2605BKB5048667December 10, 2024
24H226100.2454DKB5046740November 21, 2024
24H226100.2314BKB5046617November 12, 2024
24H226100.2161DKB5044384October 24, 2024
24H226100.2033BKB5044284October 8, 2024
24H226100.1742ABase releaseOctober 1, 2024
End of Servicing: October 12, 2027

Windows 11 Version 23H2 Releases

Windows 11 version 23H2 is an enablement package built on 22H2, delivering new features and improvements with a quick and seamless installation experience.

VersionBuild NumberTypeKB ArticleRelease Date
23H222631.6783BKB5078883March 10, 2026
23H222631.6649BKB5075941February 10, 2026
23H222631.6495OOBKB5078132January 24, 2026
23H222631.6494OOBKB5077797January 17, 2026
23H222631.6491BKB5073455January 13, 2026
23H222631.6345BKB5071417December 9, 2025
23H222631.6276DKB5070312November 20, 2025
23H222631.6199BKB5068865November 11, 2025
23H222631.6133DKB5067112October 28, 2025
23H222631.6060BKB5066793October 14, 2025
23H222631.5984DKB5065790September 23, 2025
23H222631.5909BKB5065431September 9, 2025
23H222631.5840DKB5064080August 26, 2025
23H222631.5771OOBKB5066189August 19, 2025
23H222631.5768BKB5063875August 12, 2025
23H222631.5699DKB5062663July 22, 2025
23H222631.5624BKB5062552July 8, 2025
23H222631.5549DKB5060826June 26, 2025
23H222631.5472BKB5060999June 10, 2025
23H222631.5415OOBKB5062170May 31, 2025
23H222631.5413DKB5058502May 27, 2025
23H222631.5335BKB5058405May 13, 2025
23H222631.5262DKB5055629April 22, 2025
23H222631.5192OOBKB5058919April 11, 2025
23H222631.5189BKB5055528April 8, 2025
23H222631.5126DKB5053657March 25, 2025
23H222631.5039BKB5053602March 11, 2025
23H222631.4974DKB5052094February 25, 2025
23H222631.4890BKB5051989February 11, 2025
23H222631.4830DKB5050092January 29, 2025
23H222631.4751BKB5050021January 14, 2025
23H222631.4602BKB5048685December 10, 2024
23H222631.4541DKB5046732November 21, 2024
23H222631.4460BKB5046633November 12, 2024
23H222631.4391DKB5044380October 22, 2024
23H222631.4317BKB5044285October 8, 2024
23H222631.4249DKB5043145September 26, 2024
23H222631.4169BKB5043076September 10, 2024
23H222631.4112DKB5041587August 27, 2024
23H222631.4037BKB5041585August 13, 2024
23H222631.3958DKB5040527July 25, 2024
23H222631.3880BKB5040442July 9, 2024
23H222631.3810DKB5039302June 25, 2024
23H222631.3737BKB5039212June 11, 2024
23H222631.3672DKB5037853May 29, 2024
23H222631.3593BKB5037771May 14, 2024
23H222631.3527DKB5036980April 23, 2024
23H222631.3447BKB5036893April 9, 2024
23H222631.3374DKB5035942March 26, 2024
23H222631.3296BKB5035853March 12, 2024
23H222631.3235DKB5034848February 29, 2024
23H222631.3155BKB5034765February 13, 2024
23H222631.3085DKB5034204January 23, 2024
23H222631.3007BKB5034123January 9, 2024
23H222631.2861BKB5033375December 12, 2023
23H222631.2792DKB5032288December 4, 2023
23H222631.2715BKB5032190November 14, 2023
23H222631.2506DKB5031455October 31, 2023
23H222631.2428ABase releaseOctober 31, 2023
End of Servicing: November 10, 2026

Windows 11 Version 22H2 Releases

Windows 11 version 22H2 is the first major feature update to Windows 11, bringing UI enhancements, productivity features, and improved management capabilities for enterprise environments.

VersionBuild NumberTypeKB ArticleRelease Date
22H222621.6060BKB5066793October 14, 2025
22H222621.5909BKB5065431September 9, 2025
22H222621.5771OOBKB5066189August 19, 2025
22H222621.5768BKB5063875August 12, 2025
22H222621.5624BKB5062552July 8, 2025
22H222621.5549DKB5060826June 26, 2025
22H222621.5472BKB5060999June 10, 2025
22H222621.5415OOBKB5062170May 31, 2025
22H222621.5413DKB5058502May 27, 2025
22H222621.5335BKB5058405May 13, 2025
22H222621.5262DKB5055629April 22, 2025
22H222621.5192OOBKB5058919April 11, 2025
22H222621.5189BKB5055528April 8, 2025
22H222621.5126DKB5053657March 25, 2025
22H222621.5039BKB5053602March 11, 2025
22H222621.4974DKB5052094February 25, 2025
22H222621.4890BKB5051989February 11, 2025
22H222621.4830DKB5050092January 29, 2025
22H222621.4751BKB5050021January 14, 2025
22H222621.4602BKB5048685December 10, 2024
22H222621.4541DKB5046732November 21, 2024
22H222621.4460BKB5046633November 12, 2024
22H222621.4391DKB5044380October 22, 2024
22H222621.4317BKB5044285October 8, 2024
22H222621.4249DKB5043145September 26, 2024
22H222621.4169BKB5043076September 10, 2024
22H222621.4112DKB5041587August 27, 2024
22H222621.4037BKB5041585August 13, 2024
22H222621.3958DKB5040527July 25, 2024
22H222621.3880BKB5040442July 9, 2024
22H222621.3810DKB5039302June 25, 2024
22H222621.3737BKB5039212June 11, 2024
22H222621.3672DKB5037853May 29, 2024
22H222621.3593BKB5037771May 14, 2024
22H222621.3527DKB5036980April 23, 2024
22H222621.3447BKB5036893April 9, 2024
22H222621.3374DKB5035942March 26, 2024
22H222621.3296BKB5035853March 12, 2024
22H222621.3235DKB5034848February 29, 2024
22H222621.3155BKB5034765February 13, 2024
22H222621.3085DKB5034204January 23, 2024
22H222621.3007BKB5034123January 9, 2024
22H222621.2861BKB5033375December 12, 2023
22H222621.2792DKB5032288December 4, 2023
22H222621.2715BKB5032190November 14, 2023
22H222621.2506DKB5031455October 26, 2023
22H222621.2428BKB5031354October 10, 2023
22H222621.2361DKB5030310September 26, 2023
22H222621.2283BKB5030219September 12, 2023
22H222621.2215DKB5029351August 22, 2023
22H222621.2134BKB5029263August 8, 2023
22H222621.2070DKB5028254July 26, 2023
22H222621.1992BKB5028185July 11, 2023
22H222621.1928DKB5027303June 27, 2023
22H222621.1848BKB5027231June 13, 2023
22H222621.1778DKB5026446May 24, 2023
22H222621.1702BKB5026372May 9, 2023
22H222621.1635DKB5025305April 25, 2023
22H222621.1555BKB5025239April 11, 2023
22H222621.1485DKB5023778March 28, 2023
22H222621.1413BKB5023706March 14, 2023
22H222621.1344DKB5022913February 28, 2023
22H222621.1265BKB5022845February 14, 2023
22H222621.1194DKB5022360January 26, 2023
22H222621.1105BKB5022303January 10, 2023
22H222621.963BKB5021255December 13, 2022
22H222621.900DKB5020044November 29, 2022
22H222621.819BKB5019980November 8, 2022
22H222621.755DKB5018496October 25, 2022
22H222621.675OOBKB5019509October 18, 2022
22H222621.674BKB5018427October 11, 2022
22H222621.608DKB5017389September 30, 2022
22H222621.525OOBKB5019311September 27, 2022
22H222621.521ABase releaseSeptember 20, 2022
End of Servicing: October 14, 2025

Windows 11 Version 21H2 Releases

Windows 11 version 21H2 is the original release of Windows 11, introducing the new user interface, redesigned Start menu, and foundational platform changes.

VersionBuild NumberTypeKB ArticleRelease Date
21H222000.3260BKB5044280October 8, 2024
21H222000.3197BKB5043067September 10, 2024
21H222000.3147BKB5041592August 13, 2024
21H222000.3079BKB5040431July 9, 2024
21H222000.3019BKB5039213June 11, 2024
21H222000.2960BKB5037770May 14, 2024
21H222000.2899BKB5036894April 9, 2024
21H222000.2836BKB5035854March 12, 2024
21H222000.2777BKB5034766February 13, 2024
21H222000.2713BKB5034121January 9, 2024
21H222000.2652BKB5033369December 12, 2023
21H222000.2600BKB5032192November 14, 2023
21H222000.2538BKB5031358October 10, 2023
21H222000.2482DKB5030301September 26, 2023
21H222000.2416BKB5030217September 12, 2023
21H222000.2360DKB5029332August 22, 2023
21H222000.2295BKB5029253August 8, 2023
21H222000.2245DKB5028245July 25, 2023
21H222000.2176BKB5028182July 11, 2023
21H222000.2124DKB5027292June 28, 2023
21H222000.2057BKB5027223June 13, 2023
21H222000.2003DKB5026436May 23, 2023
21H222000.1936BKB5026368May 9, 2023
21H222000.1880DKB5025298April 25, 2023
21H222000.1817BKB5025224April 11, 2023
21H222000.1761CKB5023774March 28, 2023
21H222000.1696BKB5023698March 14, 2023
21H222000.1641CKB5022905February 21, 2023
21H222000.1574BKB5022836February 14, 2023
21H222000.1516CKB5019274January 19, 2023
21H222000.1455BKB5022287January 10, 2023
21H222000.1335BKB5021234December 13, 2022
21H222000.1281CKB5019157November 15, 2022
21H222000.1219BKB5019961November 8, 2022
21H222000.1165CKB5018483October 25, 2022
21H222000.1100OOBKB5020387October 17, 2022
21H222000.1098BKB5018418October 11, 2022
21H222000.1042CKB5017383September 20, 2022
21H222000.978BKB5017328September 13, 2022
21H222000.918CKB5016691August 25, 2022
21H222000.856BKB5016629August 9, 2022
21H222000.832CKB5015882July 21, 2022
21H222000.795BKB5015814July 12, 2022
21H222000.778CKB5014668June 23, 2022
21H222000.740OOBKB5016138June 20, 2022
21H222000.739BKB5014697June 14, 2022
21H222000.708CKB5014019May 24, 2022
21H222000.675BKB5013943May 10, 2022
21H222000.652CKB5012643April 25, 2022
21H222000.613BKB5012592April 12, 2022
21H222000.593CKB5011563March 28, 2022
21H222000.556BKB5011493March 8, 2022
21H222000.527CKB5010414February 15, 2022
21H222000.493BKB5010386February 8, 2022
21H222000.469CKB5008353January 25, 2022
21H222000.438OOBKB5010795January 17, 2022
21H222000.434BKB5009566January 11, 2022
21H222000.376BKB5008215December 14, 2021
21H222000.348CKB5007262November 22, 2021
21H222000.318BKB5007215November 9, 2021
21H222000.282CKB5006746October 21, 2021
21H222000.258BKB5006674October 12, 2021
21H222000.194ABase releaseOctober 4, 2021
End of Servicing: October 8, 2024

Service Timeline for Windows 11 Version 26H1

Find below the servicing timeline details for Windows 11 version 26H1, including its release date and end of servicing/updates dates.

Edition familySupport termDate availableEnd of servicing
Home, Pro, Pro Education, Pro for Workstations24 monthsFebruary 10, 2026March 14, 2028
Enterprise, Education, Enterprise multi-session36 monthsFebruary 10, 2026March 13, 2029

Service Timeline for Windows 11 Version 25H2

Find below the servicing timeline details for Windows 11 version 25H2, including its release date and end of servicing/updates dates.

Edition familySupport termDate availableEnd of servicing
Home, Pro, Pro Education, Pro for Workstations24 monthsSeptember 30, 2025October 12, 2027
Enterprise, Education, IoT Enterprise, Enterprise multi-session36 monthsSeptember 30, 2025October 10, 2028

Service Timeline for Windows 11 Version 24H2

Find below the servicing timeline details for Windows 11 version 24H2, including its release date and end of servicing/updates dates.

Edition familySupport termDate availableEnd of servicing
Home, Pro, Pro Education, Pro for Workstations24 monthsOctober 1, 2024October 13, 2026
Enterprise, Education, IoT Enterprise, Enterprise multi-session36 monthsOctober 1, 2024October 12, 2027

Service Timeline for Windows 11 Version 23H2

Find below the servicing timeline details for Windows 11 version 23H2, including its release date and end of servicing/updates dates.

Edition familySupport termDate availableEnd of servicing
Home, Pro, Pro Education, Pro for Workstations24 monthsOctober 31, 2023November 11, 2025
Enterprise, Education, IoT Enterprise, Enterprise multi-session36 monthsOctober 31, 2023November 10, 2026

Service Timeline for Windows 11 Version 22H2 [Ended]

Find below the servicing timeline details for Windows 11 version 22H2, including its release date and end of servicing/updates dates.

Edition familySupport termDate availableEnd of servicing
Home, Pro, Pro Education, Pro for Workstations24 monthsSeptember 20, 2022October 8, 2024
Enterprise, Education, IoT Enterprise, Enterprise multi-session36 monthsSeptember 20, 2022October 14, 2025

Service Timeline for Windows 11 Version 21H2 [Ended]

Find below the servicing timeline details for Windows 11 version 21H2, including its release date and end of servicing/updates dates.

Edition familySupport termDate availableEnd of servicing
Home, Pro, Pro Education, Pro for Workstations24 monthsOctober 4, 2021October 10, 2023
Enterprise, Education, IoT Enterprise, Enterprise multi-session36 monthsOctober 4, 2021October 8, 2024

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