Windows 11 26H1 build 28000.1635 — release notes, downloads, known issues

Preview Update for Windows 11 (28000.1635)

Windows 11 26H1: Ships on new silicon only

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Coverage Windows 11 26H1 Bromine: Hardware-Gated OS for Snapdragon X2 PCs Feb 12, 2026 · Windows 11 26H1 coverage from this build's release window
Coverage Windows 11 26H1 Bromine: OEM Factory Image for Arm Silicon Feb 11, 2026 · Windows 11 26H1 coverage from this build's release window
Coverage Windows 11 26H1 Platform Enablement for Snapdragon X2 Arm Laptops Feb 11, 2026 · Windows 11 26H1 coverage from this build's release window
Coverage Windows 11 26H1 Bromine: Platform Image for Snapdragon X2 Arm Laptops Feb 11, 2026 · Windows 11 26H1 coverage from this build's release window
Coverage Windows 11 26H1 Bromine: Platform Release for Next Gen ARM Laptops Feb 11, 2026 · Windows 11 26H1 coverage from this build's release window
Coverage Windows 11 26H1 Bromine: Snapdragon X2 Platform Release Explained Feb 11, 2026 · Windows 11 26H1 coverage from this build's release window
Coverage Windows 11 26H1 vs 26H2: Parallel Arm Platform and Broad 2026 Update Feb 10, 2026 · Windows 11 26H1 coverage from this build's release window
Coverage Windows 11 26H1 Bromine: Factory Image for Snapdragon X2 PCs Feb 10, 2026 · Windows 11 26H1 coverage from this build's release window

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