Windows Server 23H2 build 25398.1913 — release notes, downloads, known issues

Windows Server, version 23H2 (25398.1913)

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Coverage Windows 10 End of Support 2025 and Windows 11 23H2 End of Servicing Oct 14, 2025 · Windows Server 23H2 coverage from this build's release window
Coverage KB5067019 Safe OS Dynamic Update: Harden WinRE for Windows 11 22H2 & 23H2 Oct 14, 2025 · Windows Server 23H2 coverage from this build's release window
Coverage KB5067019 Safe OS Dynamic Update for Windows 11 WinRE 22H2 23H2 Oct 14, 2025 · Windows Server 23H2 coverage from this build's release window
Coverage Windows 11 23H2 End of Servicing 2025: Upgrade Now or Risk Unpatched PCs Oct 14, 2025 · Windows Server 23H2 coverage from this build's release window
Coverage Windows 11 23H2 End of Updates: Upgrade Before November 11, 2025 Oct 15, 2025 · Windows Server 23H2 coverage from this build's release window
Coverage Windows 11 23H2 End of Servicing: Upgrade to 24H2 or 25H2 by Nov 11 2025 Oct 13, 2025 · Windows Server 23H2 coverage from this build's release window
Coverage Windows 11 23H2 Ends Support Nov 11 2025—Upgrade to 24H2 or 25H2 Oct 13, 2025 · Windows Server 23H2 coverage from this build's release window
Coverage Windows 11 23H2 End of Updates: What Home and Pro Users Must Do Oct 17, 2025 · Windows Server 23H2 coverage from this build's release window

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