After a long wait, Microsoft finally delivered Windows 10 1909 on Patch Tuesday for November 2019.
Generally, when the company delivers a new Windows Assessment and Deployment Kit (Windows ADK) to help organizations customize Windows images for large-scale deployment. This time, however, that’s not the case.
Per a note on the previous Windows ADK page:
A Windows ADK for Windows 10, version 1909 will not be released. You can use the Windows ADK for Windows 10, version 1903 to deploy Windows 10, version 1909.
Here’s the link to download the previous version: Download and install the Windows ADK