Software update: f.lux 4.120 beta

Version 4.120 of f.lux has been released, a beta release. This program adjusts the color of the screen to the position of the sun. For example, the screen is brighter during the day and when the sun goes down the color becomes ‘warmer’. Not only is this calmer for the eyes, it could even help with sleeping problems. The program helps find your location on Earth so that it knows exactly when the sun sets. f.lux is available for Windows, Linux, macOS, iOS and Android. The changelog for this release looks like this:

what’s new

  • Fixes for “red pixels” (overflow artifacts) on Intel Xe
  • Updated Philips Hue endpoint for better bridge discovery
  • Color profile safety checks (excluded large gamma values ​​in ICC/ICM VCGT “formula” profiles to avoid washed-out screens)

As before there is a possible bug/conflict with Windows reloading the color settings and a workaround:

  • In Windows build 19041 (20H1) and later, you will see f.lux reset by the Display Settings panel in Windows. Also, occasionally a notification will do the same. If you do not like this, you can choose f.lux options > Always use Windows internal color table to prevent it.

Version number 4,120 beta
Release status beta
Operating systems Windows 7, Android, Linux, macOS, iOS, Windows 8, Windows 10
Website f.lux
File size


License type Freeware