If you’ve been holding out hope for a Windows 12 announcement anytime soon, you might want to update your calendar—Microsoft on June 27 confirmed that the next stop on the Windows train is Windows 11 version 25H2. It’s the fourth annual feature update to Windows 11 and, despite the wait, it’s technically more of a switch‑flip than a ground‑up rebuild. Until Microsoft formally kicks off work on Windows 12, version 25H2 is the story for the foreseeable future.

“Today, Windows 11 version 25H2 became available to the Windows Insider community, in advance of broader availability planned for the second half of 2025,” wrote Microsoft’s Jason Leznek on the Windows IT Pro Blog. “Get ready for a reset of the 36‑month support lifecycle for Enterprise and Education editions and the 24‑month lifecycle for Pro, Pro Education, and Pro for Workstation editions.” With that, the countdown clock for support lifecycles starts anew—and enterprises will certainly want to mark those calendars.

Under the hood, version 25H2 shares its DNA with its predecessor, version 24H2. Rather than branching off into a fresh codebase, Microsoft staged all of the 25H2 feature code in a “disabled” state on devices already running 24H2. Then, via monthly cumulative updates (LCUs), the company flips feature flags from off to on through what it calls an enablement package (eKB). Once the eKB is applied and the PC is restarted, voilà—your 24H2 machine is now running 25H2, with no full‑OS swap required and, theoretically, zero new compatibility headaches.

This shared‑servicing model not only simplifies testing for IT teams—who can focus on the handful of net‑new features rather than revalidating the entire operating system—but also makes updates faster and lighter, as you’re never downloading an entirely new Windows image.

Although Microsoft hasn’t positioned 25H2 as a “major” upgrade in the traditional sense, there are a handful of welcome tweaks and under‑the‑hood improvements:

• Passkey provider integration: A seamless plugin for 1Password allows you to register and sign in to websites using passkeys, all from within Windows.
• Settings app enhancements: A refreshed default view in Settings streamlines how you access frequently used toggles and pages; this rollout has already begun for Insiders in the European Economic Area.
• Voice access maintenance: Some Japanese support in the built‑in Voice Access feature was temporarily disabled to address quality concerns, with full support slated to return in a later build.

These preview‑build highlights first appeared in Insider flight 26200.5670 on June 27, 2025—and they give a taste of the kinds of small, iterative improvements Microsoft plans for its annual updates.

Microsoft’s roadmap for new features remains consistent: code arrives disabled in monthly LCUs for version 24H2, then an enablement package turns it on for version 25H2 adopters. From there, a Controlled Feature Release (CFR) mechanism flips the switches on selected devices over time, allowing Microsoft to monitor reliability and performance before opening the floodgates. Those who like living on the edge can opt into the Dev Channel and see everything right away; everyone else will get the full suite sometime in H2 2025.

With 25H2’s general availability—and the completion of its enablement‑package rollout—Microsoft resets the calendar for support lifecycles:

That means, for example, Windows 11 Enterprise running 25H2 will be under support until late 2028, while a Pro workstation will see updates through mid‑2027.

For businesses and power users alike, Windows 11 version 25H2 represents both continuity and a reset. Continuity in that it smooths out the bumps of big‑bang upgrades; a reset in that it gives you—and Microsoft—a fresh support window to plan around. And for the community of Insiders, it’s yet another opportunity to shape the OS you’ll be using for years to come.

So before you start penciling in “Windows 12 speculation” on your whiteboard, grab your update, restart your PC, and enjoy a year (or more) of support—and those little quality‑of‑life tweaks—that come with Windows 11 version 25H2.