Short follow-up: the July 31 Insider drop names the Beta and Experimental minimum builds ahead of the Aug 11, 2026 flight-cert expiry. winver check, patch plan, and a note on Beta picking up the alternate taskbar.
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Windows Insider flight cert expires Aug 11 – update your lab devices now
Windows Insider flight certs expire Aug 11, 2026. This year it hits Experimental and Beta, not just Canary. Here is the operator checklist before your lab devices stall.