This is a bugfix release for 3.8.4.

Changed in this release:

• [Enhancement] macOS: Use caffeinate to prevent display sleep and screensaver.

Fixed in this release:

• [Moderate] DisplayCAL 3.8.4 broke video levels (16..235) output encoding/decoding for video card gamma table tags (profiles using calibration with video output levels created by 3.8.4 can be fixed by re-creating via menu “File”, “Create profile from measurement data…” and selecting the existing profile).