Downloads
The DO's OWL and OBO files can be downloaded using one of the following methods:
GitHub

All of the DO's OWL and OBO files can be downloaded from the DO's Github repository.
OBO Foundry

The OBO Foundry hosts the DO's pre-reasoned doid.owl and doid.obo files, updated daily from the DO's GitHub repository
OBO Foundry Ontology : Human Disease OntologyDO Releases
The DO project produces monthly data releases, including release notes.
Imports
The DO imports subsets of other OBO Foundry ontologies :Imports