April 14, 2026—KB5083769 (OS Builds 26200.8246 and 26100.8246)

April 14, 2026—KB5083769 OS Builds 26200.8246 and 26100.8246 This cumulative update for Windows 11, version 25H2 and 24H2 KB5083769, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences...

April 14, 2026-KB5082424 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 23H2

April 14, 2026-KB5082424 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 23H2 Release Date: April 14, 2026 Version: .NET Framework 3.5 and 4.8.1 The April 14, 2026 update for Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET...

April 14, 2026-KB5082421 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1

April 14, 2026-KB5082421 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1 Release Date: April 14, 2026 Version: .NET Framework 4.8.1 The April 14, 2026 update for Windows 11, version 26H1 includes security and cumulative reliability improvements in .NET Framework 4.8.1. We...

April 14, 2026-KB5082417 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2 and Microsoft server operating system 24H2

April 14, 2026-KB5082417 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2 and Microsoft server operating system 24H2 Release Date: April 14, 2026 Version: .NET Framework 3.5 and 4.8.1 The April 14, 2026 update for Windows 11, version 25H2 and Microsoft server...

April 14, 2026—KB5082198 (OS Build 14393.9060)

April 14, 2026—KB5082198 OS Build 14393.9060 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past...

April 14, 2026—KB5082063(OS Build 26100.32690)

April 14, 2026—KB5082063OS Build 26100.32690 ​​​​​This cumulative update for Windows Server 2025 KB5082063, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates,...

April 14, 2026—KB5082060 (OS Build 25398.2274)

April 14, 2026—KB5082060 OS Build 25398.2274 This cumulative update for Windows Server, version 23H2 KB5082060, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates...

Description of the security update for Office Online Server: April 14, 2026 (KB5002855)

Description of the security update for Office Online Server: April 14, 2026 KB5002855 Summary This security update resolves Microsoft Excel remote code execution vulnerability and Microsoft Excel Information Disclosure vulnerability. To learn more about the vilnerabilities, see the following...

Description of the security update for SharePoint Server 2019: April 14, 2026 (KB5002854)

Description of the security update for SharePoint Server 2019: April 14, 2026 KB5002854 Summary Important: If you're currently running SharePoint Workflow Manager, you must install the SharePoint Workflow Manager KB5002799 to your farm before you install this cumulative update. If you're currentl...

Description of the security update for SharePoint Server Subscription Edition: April 14, 2026 (KB5002853)

Description of the security update for SharePoint Server Subscription Edition: April 14, 2026 KB5002853 Summary Important: If you're currently running SharePoint Workflow Manager, you must install SharePoint Workflow Manager KB5002799 to your farm before you install this cumulative update. If...

Description of the security update for SharePoint Server 2019 Language Pack: April 14, 2026 (KB5002856)

Description of the security update for SharePoint Server 2019 Language Pack: April 14, 2026 KB5002856 Summary Important: If you're running 2013-type workflows, you mustinstall the August 2025 update for SharePoint Workflow Manager​​​​​​​to your farm before you install this cumulative update. If...

Description of the security update for SharePoint Server 2016 Language Pack: April 14, 2026 (KB5002862)

Description of the security update for SharePoint Server 2016 Language Pack: April 14, 2026 KB5002862 Summary Important: If you're running Microsoft SharePoint Server 2013-type workflows, you must install the August 2025 update for SharePoint Workflow Manager to your farm before you install this...

Description of the security update for SharePoint Server 2016: April 14, 2026 (KB5002861)

Description of the security update for SharePoint Server 2016: April 14, 2026 KB5002861 Summary Important: If you're currently running SharePoint Workflow Manager, you must install the SharePoint Workflow Manager KB5002799 to your farm before you install this cumulative update. If you're currentl...

Description of the security update for Excel 2016: April 14, 2026 (KB5002860)

Description of the security update for Excel 2016: April 14, 2026 KB5002860 Summary This security update resolves Microsoft Excel remote code execution vulnerability and Microsoft Excel Information Disclosure vulnerability. To learn more about the vulnerabilitiees, see the following security...

Description of the security update for Office 2016: April 14, 2026 (KB5002859)

Description of the security update for Office 2016: April 14, 2026 KB5002859 Summary This security update resolves a Microsoft Office remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2026-32190.​​​​​​​ Note: To appl...

April 14, 2026-KB5084068 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2

April 14, 2026-KB5084068 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 Release Date: April 14, 2026 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2...

April 14, 2026-KB5084067 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2

April 14, 2026-KB5084067 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 Revised April 22, 2026: Revised on April 22nd, 2026 to add the known issue section. Release Date: April 14, 2026 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes t...

April 14, 2026-KB5084066 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows 10, version 1809 and Windows Server 2019

April 14, 2026-KB5084066 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows 10, version 1809 and Windows Server 2019 Release Date: April 14, 2026 Version: .NET Framework 3.5, 4.7.2 and 4.8 Summary This article describes the security and cumulative update for 3.5, 4.7.2 and 4.8 fo...

April 14, 2026-KB5084165 Cumulative Update for .NET Framework 3.5 for Windows 11, version 26H1 (build 28000) and later

April 14, 2026-KB5084165 Cumulative Update for .NET Framework 3.5 for Windows 11, version 26H1 build 28000 and later Revised May 13, 2026: Updated 'How to get this update' section. Release Date: April 14, 2026 Version: .NET Framework 3.5 The April 14, 2026 update installs the complete .NET...

April 14, 2026-KB5084071 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows Server 2022

April 14, 2026-KB5084071 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows Server 2022 Release Date: April 14, 2026 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for Windows Server 2022. Securi...

KB5082089: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: April 14, 2026

KB5082089: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: April 14, 2026 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates...

April 14, 2026-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 (KB5084070)

April 14, 2026-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 KB5084070 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...

April 14, 2026-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 (KB5084069)

April 14, 2026-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 KB5084069 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...

March 31, 2026—KB5086672 (OS Builds 26200.8117 and 26100.8117) Out-of-band

March 31, 2026—KB5086672 OS Builds 26200.8117 and 26100.8117 Out-of-band This out-of-band update for Windows 11, version 25H2 and 24H2 KB5086672 is cumulative and includes updates from previous security and non-security releases.This update includes the improvements and features that were...

March 26, 2026—KB5079391 (OS Builds 26200.8116 and 26100.8116) Preview

March 26, 2026—KB5079391 OS Builds 26200.8116 and 26100.8116 Preview This update is no longer being offered to new devices due to an installation issue identified after release. The issue has been addressed in the March 31, 2026—KB5086672 OS Builds 26200.8117 and 26100.8117 Out-of-band update tha...

March 26, 2026—KB5079489 (OS Build 28000.1764) Preview

March 26, 2026—KB5079489 OS Build 28000.1764 Preview ​​​​​This non-security update for Windows 11, version 26H1 KB5079489, incudes production-quality improvements. To learn more about differences between security updates, optional non-security preview updates, Out-of-band OOB updates, and...

March 21, 2026—KB5085516 (OS Builds 26200.8039 and 26100.8039) Out-of-band

March 21, 2026—KB5085516 OS Builds 26200.8039 and 26100.8039 Out-of-band ​​​​This out-of-band update for Windows 11, version 25H2 and 24H2 KB5085516 is cumulative. It includes updates from previous security and non-security releases, along with an additional fix. To learn more about differences...

March 10, 2026—KB5078774 (Monthly Rollup)

March 10, 2026—KB5078774 Monthly Rollup Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows Server 2012 R2. For a successful installation, please make sure all Subset of endpoints for ESU only...

March 10, 2026—KB5078752 (OS Build 17763.8511)

March 10, 2026—KB5078752 OS Build 17763.8511 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past...

KB5078738: Cumulative security update for Internet Explorer: March 10, 2026

KB5078738: Cumulative security update for Internet Explorer: March 10, 2026 Important Certain versions of Microsoft Internet Explorer have reached the end of support. Note that some versions of Internet Explorer may be supported past the latest OS end date when Extended Security Updates ESUs are...

March 10, 2026—KB5078885 (OS Builds 19045.7058 and 19044.7058)

March 10, 2026—KB5078885 OS Builds 19045.7058 and 19044.7058 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business...

March 10, 2026—Hotpatch KB5078736 (OS Build 26100.32463)

None None...

March 10, 2026—Hotpatch KB5079420 (OS Builds 26200.7979 and 26100.7979)

None None...

.NET 9.0 Update - March 10, 2026

.NET 9.0 Update - March 10, 2026 .NET 9.0 has been refreshed with the latest update as of March 10, 2026. This update contains security fixes. See the release notes for details about updated packages..NET 9.0 servicing updates are upgrades. The latest servicing update for 9.0 will remove the...

.NET 10.0 Update - March 10, 2026

.NET 10.0 Update - March 10, 2026 .NET 10.0 has been refreshed with the latest update as of March 10, 2026. This update contains security fixes. See the release notes for details about updated packages..NET 10.0 servicing updates are upgrades. The latest servicing update for 10.0 will remove the...

KB5077464 - Description of the security update for SQL Server 2022 CU23: March 10, 2026

KB5077464 - Description of the security update for SQL Server 2022 CU23: March 10, 2026 Summary Improvements and fixes included in this update How to obtain and install the update How to obtain or download the latest cumulative update package for Linux More information File information Informatio...

KB5077470 - Description of the security update for SQL Server 2019 GDR: March 10, 2026

KB5077470 - Description of the security update for SQL Server 2019 GDR: March 10, 2026 Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update contains fixe...

KB5077468 - Description of the security update for SQL Server 2025 GDR: March 10, 2026

KB5077468 - Description of the security update for SQL Server 2025 GDR: March 10, 2026 Applies To SQL Server 2025 on Windows all editions, SQL Server 2025 on Linux all editions Summary Improvements and fixes included in this update How to obtain and install the update More information File...

KB5077473 - Description of the security update for SQL Server 2016 SP3 Azure Connect Feature Pack: March 10, 2026

KB5077473 - Description of the security update for SQL Server 2016 SP3 Azure Connect Feature Pack: March 10, 2026 Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This...

KB5077472 - Description of the security update for SQL Server 2017 GDR: March 10, 2026

KB5077472 - Description of the security update for SQL Server 2017 GDR: March 10, 2026 Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update contains fixe...

KB5077471 - Description of the security update for SQL Server 2017 CU31: March 10, 2026

KB5077471 - Description of the security update for SQL Server 2017 CU31: March 10, 2026 Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update contains fix...

KB5077466 - Description of the security update for SQL Server 2025 CU2: March 10, 2026

KB5077466 - Description of the security update for SQL Server 2025 CU2: March 10, 2026 Applies To SQL Server 2025 on Windows all editions, SQL Server 2025 on Linux all editions Summary Improvements and fixes included in this update How to obtain and install the update How to obtain or download th...

KB5077465 - Description of the security update for SQL Server 2022 GDR: March 10, 2026

KB5077465 - Description of the security update for SQL Server 2022 GDR: March 10, 2026 Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update contains fixe...

March 13, 2026—Hotpatch KB5084597 (OS Builds 26200.7982 and 26100.7982) Out-of-band

None None...

.NET 8.0 Update - March 10, 2026

.NET 8.0 Update - March 10, 2026 .NET 8.0 has been refreshed with the latest update as of March 10, 2026. This update contains security fixes. See the release notes for details about updated packages..NET 8.0 servicing updates are upgrades. The latest servicing update for 8.0 will remove the...

KB5077474 - Description of the security update for SQL Server 2016 SP3 GDR: March 10, 2026

KB5077474 - Description of the security update for SQL Server 2016 SP3 GDR: March 10, 2026 Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update contains...

March 10, 2026—KB5078883 (OS Build 22631.6783)

March 10, 2026—KB5078883 OS Build 22631.6783 ​​​​​This cumulative update for Windows 11, version 23H2 KB5078883, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security update...

March 10, 2026—KB5078938 (OS Build 14393.8957)

March 10, 2026—KB5078938 OS Build 14393.8957 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past...

March 10, 2026—KB5079473 (OS Builds 26200.8037 and 26100.8037)

March 10, 2026—KB5079473 OS Builds 26200.8037 and 26100.8037 This cumulative update for Windows 11, version 25H2 and 24H2 KB5079473, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences...

March 10, 2026—KB5079466 (OS Build 28000.1719)

March 10, 2026—KB5079466 OS Build 28000.1719 ​​​​​This security update for Windows 11, version 26H1 KB5079466, includes the latest security improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates, optional...