v1.4.0 — macOS 27 ready

Hardware and software compatibility

• Added support for new CPU topologies, including Performance and Super core configurations.
• Fixed CPU frequency detection on M5 and newer chips.
• Expanded CPU and GPU temperature sensor coverage.
• Hardware detection now uses native system APIs where available, avoiding a system_profiler call at startup.
• Added an optional background service to restore CPU power updates on macOS 27. Requires administrator approval and stops when StillCore quits.
• Fixed the floating window opening behind other apps on macOS Tahoe.
• Adjusted energy mode menu positioning on macOS Tahoe and macOS 27.

Energy mode switching

• Click the battery indicator in the app window to switch between Automatic and Power Save modes for the current power source.
• Added guided permission setup for switching modes without repeated password prompts.

General improvements

• Added Cmd+K to clear chart history.
• Released StillCore under the MIT License.

Full Changelog