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Microsoft Teams help & learning
Microsoft Teams help & learning Quick access Meetings Chat Notifications & settings Teams & channels Calls & devices Files Troubleshoot IT Pro & admin Get more done with Copilot in Teams Chat with Copilot in Teams Start a conversation with Copilot in Teams about files, chats, meetings, and more...
Microsoft Teams help & learning
Microsoft Teams help & learning Quick access Meetings Chat Notifications & settings Teams & channels Calls & devices Files Troubleshoot IT Pro & admin Get more done with Copilot in Teams Chat with Copilot in Teams Start a conversation with Copilot in Teams about files, chats, meetings, and more...
Microsoft Teams help & learning
Microsoft Teams help & learning Quick access Meetings Chat Notifications & settings Teams & channels Calls & devices Files Troubleshoot IT Pro & admin Get more done with Copilot in Teams Chat with Copilot in Teams Start a conversation with Copilot in Teams about files, chats, meetings, and more...
Microsoft Teams help & learning
Microsoft Teams help & learning Quick access Meetings Chat Notifications & settings Teams & channels Calls & devices Files Troubleshoot IT Pro & admin Get more done with Copilot in Teams Chat with Copilot in Teams Start a conversation with Copilot in Teams about files, chats, meetings, and more...
Microsoft Teams help & learning
Microsoft Teams help & learning Quick access Meetings Chat Notifications & settings Teams & channels Calls & devices Files Troubleshoot IT Pro & admin Get more done with Copilot in Teams Chat with Copilot in Teams Start a conversation with Copilot in Teams about files, chats, meetings, and more...
Microsoft Teams help & learning
Microsoft Teams help & learning Quick access Meetings Chat Notifications & settings Teams & channels Calls & devices Files Troubleshoot IT Pro & admin Get more done with Copilot in Teams Chat with Copilot in Teams Start a conversation with Copilot in Teams about files, chats, meetings, and more...
Microsoft Teams help & learning
Microsoft Teams help & learning Quick access Meetings Chat Notifications & settings Teams & channels Calls & devices Files Troubleshoot IT Pro & admin Get more done with Copilot in Teams Chat with Copilot in Teams Start a conversation with Copilot in Teams about files, chats, meetings, and more...
Microsoft Teams help & learning
Microsoft Teams help & learning Quick access Meetings Chat Notifications & settings Teams & channels Calls & devices Files Troubleshoot IT Pro & admin Get more done with Copilot in Teams Chat with Copilot in Teams Start a conversation with Copilot in Teams about files, chats, meetings, and more...
Microsoft Teams help & learning
Microsoft Teams help & learning Quick access Meetings Chat Notifications & settings Teams & channels Calls & devices Files Troubleshoot IT Pro & admin Get more done with Copilot in Teams Chat with Copilot in Teams Start a conversation with Copilot in Teams about files, chats, meetings, and more...
KB5104824 - Cumulative Update 27 for SQL Server 2022
KB5104824 - Cumulative Update 27 for SQL Server 2022 Release Date: September 15, 2026 Version: 16.0.4295.3 Summary This article describes Cumulative Update package 27 CU27 for Microsoft SQL Server 2022. This update contains 42 fixes that were issued after the release of SQL Server 2022 Cumulative...
Description of version 2 of the security update for Microsoft Exchange Server 2016 CU23 October 2, 2026 (KB5129958)
Description of version 2 of the security update for Microsoft Exchange Server 2016 CU23 October 2, 2026 KB5129958 Applies To Exchange Server 2016 This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common...
Description of version 2 of the security update for Microsoft Exchange Server 2019 CU14 October 2, 2026 (KB5129957)
Description of version 2 of the security update for Microsoft Exchange Server 2019 CU14 October 2, 2026 KB5129957 Applies To Exchange Server 2019 This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common...
Description of version 2 of the security update for Microsoft Exchange Server Subscription Edition RTM October 2, 2026 (KB5129955)
Description of version 2 of the security update for Microsoft Exchange Server Subscription Edition RTM October 2, 2026 KB5129955 Applies To Exchange Server SE This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following...
Description of version 2 of the security update for Microsoft Exchange Server 2019 CU15 October 2, 2026 (KB5129956)
Description of version 2 of the security update for Microsoft Exchange Server 2019 CU15 October 2, 2026 KB5129956 Applies To Exchange Server 2019 This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common...
Update Rollup 4 for System Center 2022 Data Protection Manager
Update Rollup 4 for System Center 2022 Data Protection Manager Applies to: System Center 2022 Data Protection Manager Introduction This article describes the issues that are fixed in Update Rollup 4 for Microsoft System Center Data Protection Manager 2022. It also contains the installation...
Troubleshoot problems updating Windows
Troubleshoot problems updating Windows Applies To Windows 11 Windows 10 Get help with Copilot How do I restore and repair system files? Explain how to remove external hardware. How do I repair hard drive errors? Windows 11 Windows 10 Windows Update is an essential component of Windows 11, ensurin...
Troubleshoot problems updating Windows
Troubleshoot problems updating Windows Applies To Windows 11 Windows 10 Get help with Copilot How do I restore and repair system files? Explain how to remove external hardware. How do I repair hard drive errors? Windows 11 Windows 10 Windows Update is an essential component of Windows 11, ensurin...
Troubleshoot problems updating Windows
Troubleshoot problems updating Windows Applies To Windows 11 Windows 10 Get help with Copilot How do I restore and repair system files? Explain how to remove external hardware. How do I repair hard drive errors? Windows 11 Windows 10 Windows Update is an essential component of Windows 11, ensurin...
September 22, 2026—KB5124010 (OS Builds 26300.9550, 26200.9550, and 26100.9550) Preview
September 22, 2026—KB5124010 OS Builds 26300.9550, 26200.9550, and 26100.9550 Preview Applies To Windows 11 version 26H2, all editions Windows 11 version 25H2, all editions Windows 11 version 24H2, all editions This cumulative update for Windows 11, versions 26H2, 25H2, and 24H2 KB5124010, includ...
September 22, 2026—KB5124006 (OS Build 28000.3086) Preview
September 22, 2026—KB5124006 OS Build 28000.3086 Preview Applies To Windows 11 version 26H1, all editions This cumulative update for Windows 11, version 26H1 KB5124006, includes production-quality improvements. Announcements and messages This section provides key notifications related to this...
KB5122048 - Cumulative Update 9 for SQL Server 2025
KB5122048 - Cumulative Update 9 for SQL Server 2025 Release Date: September 15, 2026 Version: 17.0.5005.3 Summary This article describes Cumulative Update 9 CU9 for Microsoft SQL Server 2025. This update package contains 45 fixes that were issued after the release of SQL Server 2025 Cumulative...
September 14, 2026—KB5129194 (OS Build 28000.2956) Out-of-band
September 14, 2026—KB5129194 OS Build 28000.2956 Out-of-band Applies To Windows 11 version 26H1, all editions This out-of-band update for Windows 11, version 26H1 KB5129194 includes the latest fixes and improvements. Visit the Windows release health dashboard for the latest status on this release...
September 14, 2026—KB5129235 (OS Build 26100.33451) Out-of-band
September 14, 2026—KB5129235 OS Build 26100.33451 Out-of-band Applies To Windows Server 2025, all editions This out-of-band OOB update for Windows Server 2025 KB5129235 is a non-security cumulative update. Improvements This out-of-band update contains quality improvements from KB5122871 released...
September 14, 2026, 2026—KB5129239 (OS Build 14393.9514) Out-of-band
September 14, 2026, 2026—KB5129239 OS Build 14393.9514 Out-of-band Applies To Windows Server 2016, all editions Win 10 Ent LTSB 2016 Win 10 IoT Ent LTSB 2016 Important Free support for Windows 10 Enterprise 2016 LTSB and Windows Server 2016 will soon end. For information about the availability of...
September 14, 2026—KB5129242 (OS Build 22631.7584) Out-of-band
September 14, 2026—KB5129242 OS Build 22631.7584 Out-of-band Applies To Windows 11 version 23H2, all editions This out-of-band update for Windows 11, version 23H2 KB5129242 is cumulative. It includes updates from previous security releases, along with additional improvements. Visit the Windows...
September 14, 2026—KB5129237 (OS Build 20348.5631) Out-of-band
September 14, 2026—KB5129237 OS Build 20348.5631 Out-of-band Applies To Windows Server 2022 Announcements and messages This section provides key notifications related to this release, including announcements, change logs, and end-of-support notices. Windows Secure Boot certificate expiration...
September 14, 2026—KB5129236 (OS Builds 19045.7727 and 19044.7727) Out-of-band
September 14, 2026—KB5129236 OS Builds 19045.7727 and 19044.7727 Out-of-band Applies To Windows 10 ESU Windows 10 Enterprise LTSC 2021 Important Free support for Windows 10 Enterprise LTSC 2021 will end soon. For information about the availability of an Extended Security Update ESU, see the End o...
September 14, 2026—KB5129244 (Monthly Rollup) Out-of-band
September 14, 2026—KB5129244 Monthly Rollup Out-of-band Applies To Windows Server 2012 ESU 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. For a successful installation, pleas...
September 14, 2026—KB5129243 (Monthly Rollup) Out-of-band
September 14, 2026—KB5129243 Monthly Rollup Out-of-band Applies To Windows Server 2012 R2 ESU 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,...
September 14, 2026—KB5129238 (OS Build 17763.9247) Out-of-band
September 14, 2026—KB5129238 OS Build 17763.9247 Out-of-band Applies To Win 10 Ent LTSC 2019 Windows Server 2019 Summary This article lists the security issues and quality improvements included in this out-of-band update. Windows Server 2019 Windows 10, version 1809 Applies to: Windows Server 201...
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KB5122769 - Description of the security update for SQL Server 2025 CU8: September 8, 2026
KB5122769 - Description of the security update for SQL Server 2025 CU8: September 8, 2026 Applies To SQL Server 2025 on Windows all editions, SQL Server 2025 on Linux all editions Release date: September 8, 2026 Version: 17.0.4085.5 Summary Known issues in this update Improvements and fixes...
Description of the security update for Microsoft Exchange Server 2019 CU14: September 8, 2026 (KB5121610)
Description of the security update for Microsoft Exchange Server 2019 CU14: September 8, 2026 KB5121610 Applies To Exchange Server 2019 This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities a...
September 8, 2026-KB5126422 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows Server 2022
September 8, 2026-KB5126422 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows Server 2022 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8.1 The September 8, 2026 update for Windows Server 2022 includes security and cumulative reliability...
KB5122771 - Description of the security update for SQL Server 2022 GDR: September 8, 2026
KB5122771 - Description of the security update for SQL Server 2022 GDR: September 8, 2026 Applies To SQL Server 2022 on Windows all editions SQL Server 2022 on Linux all editions Release date: September 8, 2026 Version: 16.0.1200.5 Summary Known issues in this update Improvements and fixes includ...
KB5122770 - Description of the security update for SQL Server 2025 GDR: September 8, 2026
KB5122770 - Description of the security update for SQL Server 2025 GDR: September 8, 2026 Applies To SQL Server 2025 on Windows all editions, SQL Server 2025 on Linux all editions Release date: September 8, 2026 Version: 17.0.1135.8 Summary Known issues in this update Improvements and fixes...
Service Update 1.48 for Microsoft Dynamics CRM (on-premises) 9.1
Service Update 1.48 for Microsoft Dynamics CRM on-premises 9.1 Introduction Service Update 9.1.48 for Microsoft Dynamics CRM on-premises 9.1 is now available. This article describes the hotfixes and updates that are included in Service Update 9.1.0048.0004. More information Update package | Versi...
KB5122772 - Description of the security update for SQL Server 2019 CU32: September 8, 2026
KB5122772 - Description of the security update for SQL Server 2019 CU32: September 8, 2026 Applies To SQL Server 2019 on Windows SQL Server 2019 on Linux Release date: September 8, 2026 Version: 15.0.4490.9 Summary Known issues in this update Improvements and fixes included in this update How to...
KB5122768 - Description of the security update for SQL Server 2022 CU26: September 8, 2026
KB5122768 - Description of the security update for SQL Server 2022 CU26: September 8, 2026 Applies To SQL Server 2022 on Windows all editions SQL Server 2022 on Linux all editions Release date: September 8, 2026 Version: 16.0.4275.2 Summary Known issues in this update Improvements and fixes...
Description of Security Update 1 for Microsoft Skype for Business Server SE CU1: September 8, 2026 (KB5123287)
Description of Security Update 1 for Microsoft Skype for Business Server SE CU1: September 8, 2026 KB5123287 Summary This cumulative update resolves vulnerabilities in Microsoft Skype for Business Server Subscription Edition. To learn more about these vulnerabilities, see the following security...
Description of Security Update 3 for Microsoft Skype for Business Server 2019 CU8: September 8, 2026 (KB5123300)
Description of Security Update 3 for Microsoft Skype for Business Server 2019 CU8: September 8, 2026 KB5123300 Applies To Skype for Business Server 2019 Summary This security update resolves vulnerabilities in Microsoft Skype for Business Server 2019. To learn more about these vulnerabilities, se...
September 8, 2026-KB5126053 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1
September 8, 2026-KB5126053 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 4.8.1 The September 8, 2026 update for Windows 11, version 26H1 includes security and cumulative reliability improvement...
September 8, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 (KB5126044)
September 8, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 KB5126044 Applies To .NET Note Applies to: Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2 Important The...
Description of the security update for Microsoft Exchange Server Subscription Edition RTM: September 8, 2026 (KB5121608)
Description of the security update for Microsoft Exchange Server Subscription Edition RTM: September 8, 2026 KB5121608 Applies To Exchange Server SE This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common...
Description of the security update for Microsoft Exchange Server 2019 CU15: September 8, 2026 (KB5121609)
Description of the security update for Microsoft Exchange Server 2019 CU15: September 8, 2026 KB5121609 Applies To Exchange Server 2019 This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities a...
September 8, 2026-KB5126050 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2022
September 8, 2026-KB5126050 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2022 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8 The September 8, 2026 update for Windows Server 2022 includes security and cumulative reliability...
KB5122773 - Description of the security update for SQL Server 2019 GDR: September 8, 2026
KB5122773 - Description of the security update for SQL Server 2019 GDR: September 8, 2026 Applies To SQL Server 2019 on Windows SQL Server 2019 on Linux Release date: September 8, 2026 Version: 15.0.2190.7 Summary Known issues in this update Improvements and fixes included in this update How to...
Description of Security Update 3 for Microsoft Skype for Business Server 2015 CU13: September 8, 2026 (KB5123301)
Description of Security Update 3 for Microsoft Skype for Business Server 2015 CU13: September 8, 2026 KB5123301 Applies To Skype for Business Server 2015 Summary This cumulative update resolves vulnerabilities in Microsoft Skype for Business Server 2015. To learn more about these vulnerabilities,...
KB5122775 - Description of the security update for SQL Server 2017 GDR: September 8, 2026
KB5122775 - Description of the security update for SQL Server 2017 GDR: September 8, 2026 Applies To SQL Server 2017 on Windows SQL Server 2017 on Linux Release date: September 8, 2026 Version: 14.0.2130.4 Summary Known issues in this update Improvements and fixes included in this update How to...
Description of the security update for Office 2016: September 08, 2026 (KB5002904)
Description of the security update for Office 2016: September 08, 2026 KB5002904 Applies To Office Standard 2016 Office Professional 2016 Office Professional Plus 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Excel remote code...