Microsoft is rolling out new Windows 11 preview builds alongside a slate of September content additions for the Xbox ecosystem. The software giant released preview builds 26100.9539 and 26200.9539 to users in the Release Preview Channel. These builds introduce several operating system updates, including Emoji 17.0 integration and custom key remapping. At the same time, Xbox Wire detailed the current software and game releases for the platform.
Windows 11 Preview Updates
The new builds incorporate Emoji 17.0 support. Users gain access to fresh graphical options such as a distorted face, a fight cloud, and a hairy creature. Microsoft also updated the designs of existing emojis within the library.
Keyboard customization receives a practical update in this cycle. Users can now remap the dedicated Copilot key to function either as the Right Control key or as the Context Menu key.
File Explorer receives multiple workflow adjustments in these builds. The application now remembers the expanded or collapsed state of sections in the Home view. Non-HTML files, including PDFs, now display automatic previews directly within the interface. Downloaded HTML files receive a new 'Preview anyway' security button.
Additional operating system adjustments round out the release. A new Tips widget appears on both the Widgets board and the lock screen. Desktop backgrounds now support DIB image files natively.
Xbox Ecosystem Releases
The gaming division highlighted fresh software availability for September across Xbox and PC platforms. Age of Empires III: Definitive Edition – The Baltic Powers is available now for players.
The platform lineup also includes coverage for upcoming titles scheduled for the September 14 to 18 release window. Additionally, the schedule features the METAL SLUG Ultimate Collection for retro gaming enthusiasts.
These concurrent updates show Microsoft pushing feature validation for the desktop operating system while keeping the Xbox ecosystem supplied with new content expansions and retro titles.
Beyond these functional adjustments, the integration of DIB (Device Independent Bitmap) file support for desktop backgrounds marks a subtle shift in how the OS handles legacy image formats, catering to users who rely on older graphic standards for personalization. The inclusion of the Tips widget across the lock screen and the main Widgets board suggests a broader strategy to increase user engagement with platform features through more persistent, contextual guidance.
On the gaming front, the release of Age of Empires III: Definitive Edition – The Baltic Powers serves as a significant expansion for the long-running strategy franchise, providing new tactical layers for established players. The spotlight on the METAL SLUG Ultimate Collection underscores a continued focus on preserving and delivering classic arcade experiences to modern hardware. This specific title is a highlight of the broader release slate slated for the mid-September window, which runs from September 14 through September 18. By balancing these granular OS refinements—such as the enhanced File Explorer security protocols for HTML files—with a steady cadence of game releases, Microsoft is attempting to harmonize its productivity and entertainment pipelines. These preview builds effectively serve as a final testing ground for these quality-of-life improvements before they transition from the Release Preview Channel to the general public.
