OData 4.0 Published as ISO/IEC 20802 For those that missed the announcement, I’m thrilled to report that OData 4.0 has been ratified and published as an ISO/IEC Standard. OData 4.0 was published as an OASIS Standard in February of 2014. OASIS submitted OData 4.0 (including Errata) to the ISO/IEC JTC 1 Information Technology body the following year, where it went through the standard review process before being unanimously approved in early 2016.