Samsung's One UI 8.5 beta includes a major Linux kernel upgrade that could deliver significant performance improvements, according to tipster reports. The update moves from kernel version 6.6.77 to 6.6.98, representing more than twenty incremental revisions that typically enhance system stability and responsiveness.
Tipster Ice Universe discovered the kernel change in a leaked CZAA build for Galaxy S25 devices currently testing One UI 8.5. The upgrade marks Samsung's first attempt to advance its kernel version, an unusual move during beta testing that suggests broader system-level improvements beyond visual changes.
Early testers report noticeable performance gains with the new kernel. According to Ice Universe, the user interface shows visible improvements in animations, touch response, and overall fluidity during daily use. The kernel acts as the core bridge between a device's hardware and software, making such upgrades critical for long-term performance.
Samsung simultaneously released LockStar version 8.5.00.8 with customizable unlock animations for One UI 8.5. The Good Lock module adds animation options including Slide, Expand, Spread, Wave, Warp, and Ripple effects, allowing users to personalize their unlock experience beyond the utilitarian default.
LockStar 8.5.00.8 also introduces manual brightness control for Always On Display on full-screen models like the Galaxy S24 and S25 series. Previously dependent on Samsung's auto-brightness algorithms, users can now override system settings to conserve battery or improve visibility in different lighting conditions.
Both features currently require One UI 8.5, which remains in beta testing for Galaxy S25 devices. Samsung rolled out Beta 3 earlier this month with fixes for lock screen glitches, gallery lag, and excessive battery drain reported by testers. The company addressed battery issues caused by certain apps in the latest update.
The kernel upgrade reportedly aligns with Google's Longevity GRF rules, which some reports suggest require Android manufacturers to deliver kernel updates after device launches. Samsung's pre-launch testing of the newer kernel version suggests preparation for broader internal changes that could extend device reliability.
Samsung is expected to release another One UI 8.5 beta later this month, with stable deployment likely coinciding with the Galaxy S26 series launch. If implemented properly, the combined kernel and customization updates could significantly enhance both performance and personalization for Samsung's 2026 flagship lineup, which is also expected to feature new privacy display technology, AI-powered weather effects, and a major AI overhaul for Bixby.
