It's not as mature as the dicom standard (which is very...mature) and they do change it occasionally, but it is stable.
[1] https://www.openvdb.org/documentation/ [2] https://academysoftwarefoundation.github.io/openvdb/ [3] https://github.com/AcademySoftwareFoundation/openvdb
I work in the medical software field by the way. I know all about the pains of dicom...
It's not as mature as the dicom standard (which is very...mature) and they do change it occasionally, but it is stable.
[1] https://www.openvdb.org/documentation/ [2] https://academysoftwarefoundation.github.io/openvdb/ [3] https://github.com/AcademySoftwareFoundation/openvdb