MC1323247
Plan for changeAdmin impact
Hotpatch-enabled devices will restart after installing the June 2026 Windows update
Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.Rollout
Rollout dates are often only in the text. When Microsoft moves them, the change shows under "What changed".
What the notice says
Microsoft’s text, with source markup removedWhat and Why The June 2026 Windows security update will be released as a hotpatch baseline update rather than a standard hotpatch update. This baseline refresh is required periodically to maintain the trusted foundation that enables future hotpatch updates to install without requiring device restarts. Rollout Schedule This change applies to the June 2026 Windows security update. Impact on Your Organization Who is affected: Organizations with Windows devices enrolled in hotpatch updates Platforms / Services: Windows Windows Update Hotpatch-enabled devices What will happen: Hotpatch-enabled devices will receive the June 2026 security update through the standard Windows Update servicing process. A device restart will be required to complete installation. After installation and restart, the update will appear in update history and compliance reporting as usual. Devices remain enrolled in hotpatch, and the next restart-free hotpatch update is expected in August 2026. Devices not enrolled in hotpatch and devices using standard Windows updates are not affected. Action Required / Recommendations Ensure update deployment policies remain in place. Plan for and communicate the one-time restart requirement. No additional configuration changes are required. Additional information Hotpatch updates overview Compliance considerations No compliance considerations identified, review as appropriate for your organization.
What changed
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Linked documentation
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Related public evidence
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Not confirmed here
What this page cannot tell you- Whether your tenant is affected: this is Microsoft's notice, not a check of your settings.