# Change History

Released On | Description
--- | ---
2021-10-20 | This issue is the eighth official release. It incorporates the following change: Optimized descriptions in DeH Tag Management.
2019-01-04 | This issue is the seventh official release. It incorporates the following change: Added API Version Query.
2018-10-24 | This issue is the sixth official release. It incorporates the following change: Accepted in OTC 3.2.
2018-10-16 | This issue is the fifth official release. It incorporates the following changes: Deleted the sys_tags parameter from Adding Tags to a DeH in Batches, Deleting Tags from a DeH in Batches, Querying Tags of a DeH, and Querying DeHs by Tag.
2018-10-11 | This issue is the fourth official release. It incorporates the following change: Added DeH Tag Management.
2018-05-30 | This issue is the third official release. It incorporates the following change: Adjusted the structure.
2017-10-30 | This issue is the second official release. It incorporates the following change: Optimized descriptions in Object Models.
2017-05-30 | This issue is the first official release.