E9 API Interface Still Available in Kinetic?

We’re moving from E9 to Kinetic and have some processes that use the E9 API/Webservices in XML. Is that API interface still around in Kinetic or has it been fully wrapped in the new REST API?

The SOAP web services can still run I believe but they are being deprecated. Here’s the lastest documentation I can find:

Epicor WCF Services Developer Guide - Kinetic 2021.1