From the status section of this document.

"This document is a Candidate Final / Public Draft of the Open Badges 2.0 specification, released on 08 March 2017 by IMS Global Learning Consortium. The specification will be considered final when approved by the IMS Technical Advisory Board and published as Final Release by IMS Global."

This document covers vocabulary, provides examples, content, and purpose of core classes (Assertion, BadgeClasses, and Profiles), various implementation techniques (e.g. hosted, signed, and badge baking), extensions (https://www.imsglobal.org/sites/default/files/Badges/OBv2p0/extensions/index.html) to add information beyond that identified in the specification, and other items.