Lunar 6.4.0 – Intelligent adaptive brightness for your external display.

Lunar controls the same brightness that you can change by using the monitor’s physical buttons.

Sensor-based Adaptive Brightness (and contrast) based on an external light sensor
Sync-based Adaptive Brightness (and contrast) based on the built-in light sensor of the Macbook or iMac
Location-based Adaptive Brightness (and contrast) based on the sunrise/sunset times in your location
App Exception list if you need more brightness for specific activities (watching movies, design work)
Individual settings per display
Manual controls and hotkeys for setting brightness and contrast that respect the min/max values per monitor

It doesn’t interfere at all with the native adaptive brightness that macOS implements for the built-in display

It works well along Night Shift and True Tone (and f.lux if Gamma/Software controls are not used)

Features

Support for the new M3 MacBook Pro and M3 iMac
Cleanup UI: Use a warmer color palette; Make the menubar UI less wide; Add option to Dim non-essential UI elements
Add lunar lux –listen command for automations based on readings from the internal ambient light sensor

Improvements

Disable Lunar adjustments when screen is locked
Add new identifiers for the M3 MacBook Pro and iMac
Make cursor cling to the middle of the slider knob instead of lagging behind
Enable lunar listen to react to display connection changes
Disable autoRestartOnFailedDDC and make it opt-in by default — New macOS updates have fixed most of the issues that created the need for it