GDAL 2.2.4 has been released, and unlike previous releases the virtual ABI dependency was not bumped, and so no transition is required this time. The diff looked sane enough, and no symbols changes occurred, so I was willing to try not requiring a transition for this GDAL release. I had initially planned to try that starting with GDAL 2.3.0 to have a nice round ABI dependency, but alas. Kind Regards, Bas