A few days ago, the official release of the Open Source DICOM toolkit DCMTK 3.6.8 was tagged in the public git repository and is now available for free download: https://dcmtk.org/download/dcmtk/dcmtk368/
Apart from bug fixes and the usual updates for the latest changes of the DICOM standard, a couple of new features have been added. See the official announcement for details.