This package will soon be part of the qtbase-abi-5-15-4 transition. You might want to ensure that your package is ready for it.
You can probably find supplementary information in the
debian-release
archives or in the corresponding
release.debian.org
bug.
Migration status for dtkwidget (5.5.44-1 to 5.5.45-1): Waiting for test results or another package, or too young (no action required now - check later)