(2014-07-31) Bernard Vatant: The version date is taken from the HTML documentation. The changing values of dcterms:modified in the RDF files trigger false positive in version history. This issue is under investigation by the vocabulary publisher. See https://github.com/GSA/data.gov/issues/407.
(2015-12-26) Ghislain Atemezing: Annual review OK. However, the issue pointed out last year by Bernard is not fixed.