Device-recovery and LED fixes, plus the GUI/cross-platform work accumulated since v9.7.3.
- Display no longer goes blank after sleep/resume (#189) — a stale USB handle after resume (
EIO) now self-heals: every wire reconnects in place before escalating. - PA120 / LF10 metric-zone selection + colouring restored (#192) — zones are an independent multi-select again (colour applies to the selected zones; "circulate" = all).
- LED device picker fixed in the native skin (#176).
- No more duplicate LibreHardwareMonitor helpers (#191).
- Empty-window state — with no device connected the GUI shows the system dashboard + a per-OS "connect a device" hint instead of a blank panel.
- Clearer connect failures — OS-correct hints (udev setup / WinUSB / run-as-admin) surfaced across every UI.
- Windows/BSD restoration — Windows memory type + disk SMART, WMI GPU fallback, COM-safe WMI seam; BSD XDG autostart.
Full notes in doc/CHANGELOG.md.