Windows 11 26H2: Everything new in Microsoft biggest update of 2026
What happened # Microsoft has officially announced Windows 11, version 26H2 as its biggest update of 2026. The update is already available to Windows Insiders and is expected to reach general availability in October 2026.
This is Microsoft’s second annual feature update for Windows 11, following the same predictable and low-disruption servicing model that IT professionals have come to expect. For devices already running recent versions of Windows 11, the upgrade path should be smooth and non-intrusive.