May 11, 2027 is not the currently published end-of-support date for Windows 11 Enterprise, version 23H2; Microsoft lists November 10, 2026 as its end-of-updates date. ^1^
Confirmed lifecycle details
- Final security update: The November 2026 Windows security update is the last update for Windows 11 Enterprise 23H2. ^2^
- Updates until then: Enterprise 23H2 continues receiving monthly cumulative security updates through its servicing period. Windows monthly security releases are cumulative, so each includes preceding updates. ^1^
- After November 10, 2026: Devices remain operational, but they no longer receive regular monthly security updates containing protection against newly addressed threats. ^3^
- Microsoft also states that fixes for known issues, time-zone updates, technical support, and monthly preview updates end for this version. ^4^
The lifecycle page displays the retirement boundary as November 11, 2026 at 6:59:59 AM Pacific Time, while release-health documentation describes November 10, 2026 as the end-of-updates date. These represent the published lifecycle boundary and the servicing/update date respectively; use November 10, 2026 as the operational deadline for deployment planning. ^5^
Upgrade requirement
Upgrade devices to a Windows 11 release that remains supported before the November 10, 2026 deadline if they must continue receiving monthly security and quality updates.
As of the published lifecycle table:
| Enterprise release | End of updates |
|---|---|
| 23H2 | November 10, 2026 |
| 24H2 | October 12, 2027 |
| 25H2 | October 10, 2028 |
| 26H2 | October 9, 2029 |
These dates are listed on Microsoft’s Windows 11 release-information page. ^1^
Although 24H2 is still supported, it provides a shorter remaining servicing window than 25H2 or 26H2. Select the newest supported release that is compatible with your devices and approved by your organization rather than upgrading only to 24H2.
For an eligible device, check availability under:
- Settings → Windows Update
- Select Check for updates.
- If a supported feature update is offered, select Download and install. ^3^
For managed Enterprise devices, schedule deployment through the organization’s normal Windows update-management platform and allow time for application, driver, security-baseline, and rollback testing before the deadline.
References