Universal Device Toolkit v4.2.0

Release date: 2026-06-04

Highlights

Stable release for in-app updates from v4.1.0. Existing installs can check for updates normally and install the Full or Online setup package from GitHub Releases.
Added a real-time on-screen display (OSD) overlay for hardware metrics, ported from upstream Lenovo Legion Toolkit behavior.
Rolls up post-4.1.0 fixes for God Mode preset refresh, installed optimization-only plugins, dashboard sensor loading, expanded sensor aliases, shipping-test isolation, real hardware validation guards, and broader 2020+ basic-mode device matching.

Added on-screen display (OSD) overlay with Panel and Bar styles, configurable metrics, and settings under Application behavior when hardware sensors are enabled / 新增屏幕显示（OSD）浮层，支持 Panel 与 Bar 两种样式、可配置指标，并在启用硬件传感器时于应用行为设置中提供配置入口

Fixed the dashboard power mode settings gear staying hidden on some Legion machines (including Y9000P 2025) when custom mode is available from hardware / 修复部分拯救者机型（含 Y9000P 2025）在硬件已支持自定义模式时，仪表盘性能模式齿轮仍无法打开设置的问题
Fixed optimization-only plugins after install so manifest and convention-provided System Optimization child actions are visible and usable even when the plugin has no standalone page.
Fixed dashboard CPU/GPU skeleton timing so loading remains visible until renderable live sensor data is available, and kept battery detailed average temperature out of the dashboard.
Expanded sensor collection by including nested hardware sensors and additional CPU/GPU/platform aliases used by third-party tools.
Fixed basic-mode device matching for broader 2020+ brand coverage, including regional brands, family-only catalog packs, and gaming subbrand DMI vendors such as ROG, Alienware, OMEN, Predator, AORUS, and ERAZER.
Tightened shipping payload guards so test, smoke, validation, and tool projects cannot be referenced by or shipped with the main app.
Added real hardware validation guard coverage for measurable power-mode readback instead of relying only on simulated state changes.
Multi-platform work remains diagnostics groundwork in 4.x; formal macOS/Linux release assets are deferred to 5.x.

UniversalDeviceToolkit_v4.2.0_Full_Setup.exe - Full installer with bundled languages and device support data.
UniversalDeviceToolkit_v4.2.0_Online_Setup.exe - Online installer with the base app; additional language and device resources install from the in-app online catalog.
UniversalDeviceToolkit_v4.2.0_Full_win-x64.zip - Full portable package with bundled languages and device support data.
UniversalDeviceToolkit_v4.2.0_Online_win-x64.zip - Online portable package with the base app; additional resources install from the in-app online catalog.
LenovoLegionToolkit_v4.2.0_Setup.exe - Compatibility installer alias for existing Lenovo Legion Toolkit updater, winget, and Scoop users.
UniversalDeviceToolkit_v4.2.0_SHA256.txt - SHA256 checksum manifest.

Language resources are published through GitHub Pages under resources/4.2.0/languages.
Device model resources are published through GitHub Pages under resources/4.2.0/devices.
The stable online catalog is published at resources/stable/catalog.json; stable/catalog.json remains as a compatibility copy.

Download the SHA256 manifest attached to this release.
Verify any downloaded asset with CertUtil -hashfile <file> SHA256 and compare it with the manifest.