Microsoft has begun rolling out its annual Windows 11 update, version 25H2, to all users today. Following a testing phase in the Windows Insider Release Preview ring last month, the update is now being delivered through Windows Update for general availability. The 25H2 update is relatively lightweight, designed as a small “enablement package” that installs quickly. It includes all the features introduced in the previous 24H2 release, as both versions share the same code base and servicing branch. This shared foundation allows Microsoft to deliver new features on a monthly basis to both 24H2 and 25H2 editions of Windows 11, streamlining the update process. Behind the scenes, 25H2 brings important improvements, particularly in security. John Cable, vice president of program management for Windows servicing and delivery, highlighted that the update features significant advancements in build and runtime vulnerability detection, enhanced by AI-assisted secure coding practices. These changes are part of Microsoft’s ongoing commitment to a robust security development lifecycle (SDL) to proactively address and mitigate potential threats. The update also makes the system more efficient by removing outdated components, including PowerShell 2.0 and the Windows Management Instrumentation command-line (WMIC), resulting in a leaner, more streamlined operating system. To receive the update immediately, users should ensure the “Get the latest updates as soon as they’re available” option is enabled in Windows Update settings. However, Microsoft may temporarily withhold the update on devices with known compatibility issues, such as problematic applications or drivers. In such cases, a safeguard hold will be applied until the issue is resolved. Microsoft plans to gradually expand the rollout over the coming months and will continue to publish information about known issues and device compatibility on its Windows release health hub.