Xiaomi HyperOS 3.1 Stable Update: Features and Eligible Devices List

Xiaomi has officially transitioned its latest software iteration, HyperOS 3.1, from its rigorous beta phase to a stable release. Built upon the Android 16 framework, this update marks a significant milestone for the company’s ecosystem, delivering a suite of performance optimizations, critical bug fixes, and a more polished user interface.

Initial Deployment and Global Outlook

According to reports from Xiaomi Time, the stable OTA (Over-the-Air) update is currently being deployed to Xiaomi’s premier hardware in China. The initial rollout phase focuses on the flagship Xiaomi 17 series and the high-performance Redmi K90 Pro Max.

While the release is currently localized to the Chinese market—consistent with Xiaomi’s historical deployment strategy—a global rollout is anticipated in the coming weeks. Owners of international models can expect a notification shortly after the initial feedback from the domestic launch is processed.

Specific Firmware Versions:

• Xiaomi 17: OS3.0.301.0.WPCCNXM
• Xiaomi 17 Pro: OS3.0.301.0.WBLCNXM
• Xiaomi 17 Pro Max: OS3.0.301.0.WPBCNXM
• Redmi K90 Pro Max: OS3.0.301.0.WPMCNXM

Under the Hood: Rust Implementation and System Stability

One of the most noteworthy technical aspects of HyperOS 3.1 is Xiaomi’s move toward “memory-safe” programming. Both the Gallery and Weather applications have been entirely recreated using the Rust programming language. This shift is expected to significantly improve app responsiveness and eliminate long-standing memory-related crashes.

In addition to back-end improvements, the update introduces a more aesthetic “stacking” view for recent tasks in the Launcher, aimed at providing a smoother multitasking experience.

Comprehensive Fixes and Optimizations

The HyperOS 3.1 changelog addresses a wide range of “edge-case” bugs that persisted during the beta period. Key improvements include:

• Connectivity: Resolution of intermittent AirPods connection issues and rare SIM card recognition errors.
• Security: Fixes for encrypted private files within app clones and system sharing crashes.
• Visuals: Optimization of the gesture prompt line and network icon displays in the status bar.
• Smart Features: Reduced latency in the Smart Assistant (Negative Screen) and improved handwritten note sharing.

How to Update

Users can wait for the automatic system notification or perform a manual check by navigating to Settings > My device and tapping the HyperOS logo. As this update transitions the device from the Beta channel to the Official Stable channel, Xiaomi notes that some experimental Beta features may be retired in favor of the finalized official builds.