The most important changes are related to the Urban release scheduled for July 20. Changes to the API include adding new layers, that is metrics and spaces. Also, you can use the API to upgrade your urban models and urban design databases to the new schema. Finally, previously deprecated top-level queries are removed.
Other changes and deprecations are listed in the release notes.
If you have any questions about the release, do not hesitate to ask your questions on the questions board.
Have fun exploring the (old) and new capabilities of the Urban API.
Sincerely,
the ArcGIS Urban team on GeoNet
