Since BioPortal (http://bioportal.bioontology.org/) is now able to load an ontology file given a URL vs. the previous method of connecting into a CVS/SVN repository, we are changing how we extract the ontology version information. For OBO format ontologies, we will extract this information from the property "data-version" based on the property description here: http://www.geneontology.org/GO.format.obo-1_4.shtml. For OWL ontologies, we will extract the version information from owl:versioninfo. In your next ontology release, can you include the version information in the ontology file?
Also, is someone from your group subscribed to receive comments on your ontology via the email alert feature? To subscribe, please send email to support@... with the ontology name and email address to subscribe.
Trish Whetzel, PhD
The National Center for Biomedical Ontology