Windows server 2026. Oct 12, 2021 · 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. CVE-2026-21262 is a weakness that allows an attacker to elevate their privileges on SQL Server 2016 and later editions. Windows Server 2025 servicing stack update (KB5075898) - 26100. It builds on Windows Server 2019, our fastest adopted Windows Server ever. The Windows Server Annual Channel (AC) was released after Oct 13, 2025 · Windows Server 2022 reaches the end of its mainstream support window on October 13, 2026, and will transition into Extended Support until October 14, 2031, after which Microsoft will stop shipping security updates and technical support for the platform. Mar 16, 2026 · Set up a KMS activation server for Windows 11/10/Server and Office 2024/2021/2019. On the left side of this page, you’ll find a list of all the updates released for this version of Windows Server. Feb 10, 2026 · Applies to: Windows Server 2019 This security update includes fixes and quality improvements that are part of the following updates: January 13, 2026—KB5073723 (OS Build 17763. This release includes advanced multi-layer security, hybrid capabilities with Azure, and a flexible platform to modernize applications with containers. Oct 8, 2024 · Updates for Windows Server 2025 Windows Server 2025 is the latest release in our Long Term Servicing Channel. Oct 14, 2025 · After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Mar 11, 2026 · Two of the bugs Microsoft patched today were publicly disclosed previously. 4 MB74822744 2026-03 Cumulative Security Update for Internet Explorer 11 for Windows Server 2012 R2 for x64-based systems (KB5078738) Windows Server 2012 R2 Security Updates 3/10/2026 n/a 55. You can also find more information about releases and any known issues. Updated March 2026. The table below shows the history of all monthly security and non-security preview updates released for supported versions of Windows Server in the Long-Term Servicing Channel. Systems on the 2011 CAs after June 2026 are at risk of running on degraded security posture. The bold text within the brackets indicates the item or area of the change we are documenting. 8389) The following is a summary of the issues that this update addresses when you install this update. Standard, Datacenter, Essentials editions. Feb 23, 2026 · For this reason, organizations will need to ensure the 2023 Secure Boot CAs are present on applicable Windows Server systems before the older 2011 CAs begin expiring in June 2026. 1719. Semi-Annual Channel (SAC) 3. Annual Channel (AC) The Windows Server Semi-Annual Channel (SAC) was retired on August 9, 2022. Your PC will still work, but we recommend moving to Windows 11. 8281) Out-of-band The following is a summary of the issues that this update addresses when you install 3/10/2026 n/a 71. There have been historically three primary release channels available: 1. Oct 14, 2025 · Original publish date: March 10, 2026 KB ID: 5081694 Publisher: MicrosoftWindowsServer Offer: WindowsServer Support for Windows 10 has ended on October 14, 2025 After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. . Feb 3, 2026 · It is a prerequisite for most Microsoft server applications such as SQL Server, Exchange Server, and SharePoint Server, and it continues to provide on-premises infrastructure for identity management (Active Directory), virtualization (Hyper-V), storage and file services, and other tasks. The update, KB5079466, arrived on March 10, 2026, and focuses mainly on security improvements and reliability fixes rather than major new features. Mar 10, 2026 · Microsoft released its March 2026 Patch Tuesday security update on March 10, 2026, addressing 78 vulnerabilities across a wide range of products, including Windows, Microsoft Office, Azure, SQL Server, and . NET. Step-by-step install, DNS config, firewall rules, and troubleshooting. Oct 8, 2024 · For more information about security vulnerabilities, see the Security Update Guide and the February 2026 Security Updates. Feb 24, 2026 · Microsoft has strengthened its Windows Server security posture once again, rolling out a refreshed baseline package while expanding protections across core services. There will be no future SAC releases of Windows Server. Mar 11, 2026 · Microsoft has released a new cumulative update for Windows 11 version 26H1, bringing systems to OS Build 28000. 32370 This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Sep 14, 2021 · Updates for Windows Server 2022 Windows Server 2022 is the latest release in our Long-Term Servicing Channel (LTSC). Feb 21, 2026 · Applies to: Windows Server 2019 This security update includes fixes and quality improvements that are part of the following update: February 10, 2026—KB5075904 (OS Build 17763. Long-Term Servicing Channel (LTSC) 2. 8273) January 17, 2026—KB5077795 (OS Build 17763. 8280) Out-of-band January 24, 2026—KB5078131 (OS Build 17763. [Windows System Find out which products will retire, reach end of support or move from mainstream support to extended support in 2026. 0 MB 2026-03 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5078938) Windows Server 2016 Security Updates 3/10/2026 n Mar 16, 2026 · All Windows Server KMS client keys for Server 2025, 2022, 2019, and 2016. yfg axnagpq rzyozn iucaxu glusweuze zkzjlow adms ucs tbgofqlad tjdjbse