| Version | Release Date | Turtle Document | OWL/XML Document |
|---|---|---|---|
| http://hadatac.org/ont/hhear/1.0 | Dec 03, 2019 | hhear-v1.0.ttl | hhear-v1.0.owl |
| http://hadatac.org/ont/hhear/1.1 | Feb 07, 2020 | hhear-v1.1.ttl | hhear-v1.1.owl |
| http://hadatac.org/ont/hhear/1.2 | Nov 30, 2020 | hhear-v1.2.ttl | hhear-v1.2.owl |
| http://hadatac.org/ont/hhear/1.4 | March 17, 2021 | hhear-v1.4.ttl | hhear-v1.4.owl |