Windows Server 2019 build 17763.8511 (KB5078752) — release notes, downloads, known issues

Windows Server · 2019 · Release · Security update (Patch Tuesday)

Cumulative Update for Windows Server 2019 (1809) (17763.8511)

Windows Server 2019: Extended support

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Coverage Period 2 ESU for Exchange 2016/2019: New Contract for May–Oct 2026 Apr 15, 2026 · Windows Server 2019 coverage from this build's release window
Issue Microsoft Fixes Windows Server Upgrade Bug: 2019/2022 No Longer Auto-Route to 2025 Apr 15, 2026 · Windows Server 2019 coverage from this build's release window
Issue Microsoft Fixes Windows Server 2019/2022 Bug That Could Offer Server 2025 Apr 16, 2026 · Windows Server 2019 coverage from this build's release window

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