The version of ddcutil in Debian is being updated to release 2.1.4. Shared
library package libddcutil5 replaces libddcutil4.

Source packages ukui-control-center and ukui-settings-daemon have been
identified as using libddcutil.

References in files debian/control should be updated to specify:

Build-Depends:  libddcutil-dev (>= 1.4.1)
Depends:       libddcutil4 (>= 1.4.1) | libddcutil5 (>= 2.1.4)

Function name ddca_create_display_ref() is deprecated and will be removed in a
future release.  It should be replaced in source code with the alternative name
ddca_get_display_ref(), which more accurately describes what the function does.