2026-04 Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 for x64 (KB5084070)

2026-04 Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 for x64 KB5084070...

October 14, 2025-Security and Quality Rollup for .NET Framework 2.0, 3.0, 3.5 SP1, 4.6.2 for Windows Server 2008 SP2 (KB5066742)

October 14, 2025-Security and Quality Rollup for .NET Framework 2.0, 3.0, 3.5 SP1, 4.6.2 for Windows Server 2008 SP2 KB5066742 Applies to: Microsoft .NET Framework 2.0 Microsoft .NET Framework 3.0 Microsoft .NET Framework 3.5 SP1 Microsoft .NET Framework 4.6.2 IMPORTANT This update is included in...

September 9, 2025-KB5065957 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2

September 9, 2025-KB5065957 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 Release Date: September 9, 2025 Version: .NET Framework 3.5, 4.8 and 4.8.1 IMPORTANT This update is included in the Cumulative Update that's dated September 9, 2025. Parts of this updat...

June 11, 2024—KB5039212 (OS Builds 22621.3737 and 22631.3737)

June 11, 2024—KB5039212 OS Builds 22621.3737 and 22631.3737 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11, version 23H2, see its update history page. Note Follow @WindowsUpda...

April 9, 2024-Security and Quality Rollup for .NET Framework 2.0, 3.0, 3.5 SP1, 4.6.2 for Windows Server 2008 SP2 (KB5037041)

April 9, 2024-Security and Quality Rollup for .NET Framework 2.0, 3.0, 3.5 SP1, 4.6.2 for Windows Server 2008 SP2 KB5037041 Applies to: Microsoft .NET Framework 2.0 Microsoft .NET Framework 3.0 Microsoft .NET Framework 3.5 SP1 Microsoft .NET Framework 4.6.2 REMINDER Windows Embedded 7 Standard an...

December 12, 2023—KB5033369 (OS Build 22000.2652)

December 12, 2023—KB5033369 OS Build 22000.2652 9/26/23 IMPORTANT As of September 26, 2023, there are no more optional, non-security preview releases for Windows 11, version 21H2. Only cumulative monthly security updates will continue for the supported versions of Windows 11, version 21H2...

November 14, 2023-Security and Quality Rollup for .NET Framework 2.0, 3.0, 4.6.2 for Windows Server 2008 SP2 (KB5032344)

November 14, 2023-Security and Quality Rollup for .NET Framework 2.0, 3.0, 4.6.2 for Windows Server 2008 SP2 KB5032344 Revised 11/15/23: to remove CVE details which were not affected by the .NET Framework November Security and Quality rollup. Applies to:Microsoft .NET Framework 2.0 Microsoft .NET...

October 11, 2022-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5018548)

October 11, 2022-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 KB5018548 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2...

August 9, 2022 Security update (KB5016620)

August 9, 2022 Security update KB5016620 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Azure Stack HCI, version 20H2, see its update history page. Improvements This security update...

June 20, 2022—KB5016139 (OS Builds 19042.1767, 19043.1767, and 19044.1767) Out-of-band

June 20, 2022—KB5016139 OS Builds 19042.1767, 19043.1767, and 19044.1767 Out-of-band EXPIRATION NOTICEIMPORTAN T As of 9/12/2023, this KB is only available from Windows Update. It is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your...

June 14, 2022—KB5014697 (OS Build 22000.739)

June 14, 2022—KB5014697 OS Build 22000.739 Note: To improve the information presented in the history pages and related KBs and make them more useful to our customers, we have created an anonymous survey for you to share your comments and feedback. For information about Windows update terminology,...

June 14, 2022—KB5014699 (OS Builds 19042.1766, 19043.1766, and 19044.1766)

June 14, 2022—KB5014699 OS Builds 19042.1766, 19043.1766, and 19044.1766 EXPIRATION NOTICEIMPORTAN T As of 9/12/2023, this KB is only available from Windows Update. It is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to...

February 8, 2022—KB5010342 (OS Builds 19042.1526, 19043.1526, and 19044.1526)

February 8, 2022—KB5010342 OS Builds 19042.1526, 19043.1526, and 19044.1526 EXPIRATION NOTICEIMPORTAN T As of 9/12/2023, this KB is only available from Windows Update. It is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices ...

September 14, 2021—KB5005566 (OS Build 18363.1801)

September 14, 2021—KB5005566 OS Build 18363.1801 EXPIRATION NOTICE As of 9/12/2023, KB5005566 is only available from Windows Update. This update is no longer available from the Microsoft Update Catalog, or other release channels. We recommend that you update your devices to the latest security...

Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5001880)

Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 KB5001880 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.5.2 Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1 Microsoft .NET Framework 4.6.2...

September 8, 2020—KB4574727 (OS Builds 18362.1082 and 18363.1082) - EXPIRED

September 8, 2020—KB4574727 OS Builds 18362.1082 and 18363.1082 - EXPIRED NEW 8/5/21 EXPIRATION NOTICEIMPORTANT As of 8/5/2021, this KB is no longer available from Windows Update, the Microsoft Update Catalog, or other release channels. We recommend that you update your devices to the latest...

Security and Quality Rollup for .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB4576628)

Security and Quality Rollup for .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 7 SP1 and Windows Server 2008 R2 SP1 KB4576628 Applies to: Microsoft .NET Framework 3.5.1 Microsoft .NET Framework 4.5.2 Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1...

Security and Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 (KB4578961)

Security and Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 KB4578961 Applies to: Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET...

July 14, 2020—KB4565483 (OS Builds 18362.959 and 18363.959) - EXPIRED

July 14, 2020—KB4565483 OS Builds 18362.959 and 18363.959 - EXPIRED NEW 8/5/21 EXPIRATION NOTICEIMPORTANT As of 8/5/2021, this KB is no longer available from Windows Update, the Microsoft Update Catalog, or other release channels. We recommend that you update your devices to the latest security...

January 14, 2020—KB4534276 (OS Build 16299.1625)

January 14, 2020—KB4534276 OS Build 16299.1625 Reminder March 12 and April 9 were the last two Delta updates for Windows 10, version 1709. Security and quality updates will continue to be available via the express and full cumulative update packages. For more information on this change please vis...