John,
Below is a post on the HDF Forum that may provide an answer to your question:
https://forum.hdfgroup.org/t/announcing-development-of-the-enterprise-support-edition-of-hdf5/4374/16
-Aleksandar
On May 13, 2018, at 11:42 PM, John Caron
<jcaron1129@xxxxxxxxx<mailto:jcaron1129@xxxxxxxxx>> wrote:
It would be interesting to know the status of the HDF file format
specification. Will it remain open source and free to use and implement? Will
there be two file formats, one for the CE core features, and another that will
include features that support the ESE that are proprietary?
John