Our last release (sdo-deimos aka 3.0) included a number of unintended reversions. These need careful repair before we open a new branch for a subsequent release. The cause seems to be the March 24 2016 merging of the medical vocab changes into sdo-deimos (#11 (comment)). It seems I (@danbri) did not review the PR with sufficient care and our unit tests did not catch the mistake.

Examples

• Reinstate publisher can be a Person #1198 - In version 2.1 Person was added to the range of http://schema.org/publisher.
• Loss of Issue #526: New types related to social media posts. #549 - the parent of http://schema.org/BlogPosting is now Article, whereas previously it was SocialMediaPosting."; it should still be SocialMediaPosting.
• Other losses from at least 2.1 and 2.2 seem mostly to be domain/range tweaks to existing types rather than simple additions of new terms.

I can see no simple way to fix this beyond a careful comparison of before/after versions of data/schema.rdfa, which I shall be attempting here.