The app credit is now cooked by LeSamsky in the sidebar and both Overview locations. The working 0.8.2 native theme bridge and UI preflight remain unchanged.
The update accepts installed 0.8.2 or 0.8.3 program files. It validates package hashes, tests real Windows controls and all four themes before copying, backs up replaced program files, verifies installed hashes and tests the installed UI again. Failed installation/readback rolls the replaced files back. Keep the reported backup folder if an error occurs.
Your current latency, game/GPU profiles, services, network, security, power plans, desktop icons and wallpaper preferences remain as configured. The update does not apply or reapply any Windows tuning action. No Windows reinstall or restart is normally needed.
Import LeCoreOS-11-0.8.3.apbx directly into AME Wizard. The full playbook has the same configuration as 0.8.2 apart from credit text and release metadata. Do not import the app-update ZIP or source ZIP into AME.
Earlier broken app versions can use the archived 0.8.2 repair first. Keep the original gaming account and recovery journals.