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    • herfH
      herf
      last edited by herf

      Hi everyone - quick update on macOS 26 (Tahoe).

      it works

      As of "public beta 2" (developer beta 5 on Aug 5, 2025), this bug is fixed.

      If you have an older beta please update to use f.lux, and you can enable automatic brightness as you like.

      As of beta 4 (public beta, July 24, 2025), we know that "Automatically Adjust Brightness" and the color controls f.lux uses are not working together, on modern MBPs at least. You might see a MacBook Pro with no changes to screen colors on an internal screen, but with working colors on an external screen.

      For now, the main workaround is to disable Automatic Brightness using Settings > Displays > Automatically Adjust Brightness. We hope this will be fixed before the beta is over (it was reported to Apple about a month ago) and we are looking for workarounds in case that does not happen quickly.

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