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Ontology changes from 1.3 to 1.4 were relatively minor, including an update to the Geopolitical Ontology and changes to support linking to external vocabulary references as described above. Changes for each release are documented on the VIVO wiki on Sourceforge at http://sourceforge.net/apps/mediawiki/vivo/index.php?title= Ontology.
With version 1.4, the VIVO ontology will be submitted to the Bioportal (http://www.bioontology.org/bioportal), an open repository of ontologies hosted by the National Center for Biomedical Ontology, to facilitate access and dissemination.
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