Windows Server 2019 build 17763.7249 (KB5059091) — release notes, known issues

• Issue Known issue Devices that have certain Citrix components installed might be unable to complete installation of the January 2025 Windows security update. This issue was observed on devices with Citrix Session Recording Agent (SRA) version 2411. The 2411 version of this application was released in December 2024. Affected devices might initially download and apply the January 2025 Windows security update correctly, such as via the Windows Update page in Settings. However, when restarting the device to complete the update installation, an error message with text similar to “Something didn’t go as planned. No need to worry – undoing changes” appears. The device will then revert to the Windows updates previous Workaround: The issue has been resolved in Citrix Session Recording Agent version 2503, released on April 28, 2025, and newer versions. For details, see the documentation provided by Citrix at " Microsoft's January Security Update Fails/Reverts on a machine with 2411 Session Recording Agent ".

Microsoft's release notes for KB5059091 ›

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• Fix Emergency Windows Server Updates Fix Container Launch Failures Apr 26, 2025 · names this build
• Fix Windows Server 2025 Container Crisis: How Microsoft’s Emergency Patch Saves the Day Apr 18, 2025 · names this build
• Fix Urgent Microsoft Hyper-V Container Updates Fix System File Mismatches Disrupting Windows Server 2025 Apr 17, 2025 · names this build
• Coverage Microsoft Office Support End 2025: What You Need to Know About Moving Beyond Office 2016 and 2019 Apr 15, 2025 · Windows Server 2019 coverage from this build's release window
• Coverage End of Support for Office 2016 & 2019: Key Dates, Upgrades, & Future Outlook Apr 17, 2025 · Windows Server 2019 coverage from this build's release window
• Coverage Microsoft's April 2025 Hotfix for Exchange Server 2016 & 2019: Essential Updates & Future Risks Apr 22, 2025 · Windows Server 2019 coverage from this build's release window
• Coverage CISA Adds Critical Vulnerabilities CVE-2019-9874 & CVE-2019-9875 to Exploited Vulnerabilities Catalog Apr 26, 2025 · Windows Server 2019 coverage from this build's release window
• Coverage Is Cheap Microsoft Office 2019 License Legitimate? Risks & Safe Alternatives May 2, 2025 · Windows Server 2019 coverage from this build's release window

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