Where is the url path field in new control panel?

The URL Path field still exists, but we have added a restriction so that it only appears for a website which already has an application at the root of the domain (URL Path of "/"). This prevents the "There is no application mounted at the root of this domain" errors that used to exist before the change.

In order to set a URL Path, create a website record with the primary application at the root of the domain and save it. Then, edit that website record, add a new application to it, and under the "URL" field, enter the URL where the new application should be mounted. For example, if this is an http website record, your domain is www.example.com, and the URL Path should be /foo, you would enter the full URL for this application:

http://www.example.com/foo

The first portion of this URL is entered for you in the website record, so you can just add the "/foo" onto the end of the URL.

This visualization of what the URL Path field does helps to eliminate confusion that occurs when people will associate the URL Path with a filesystem path; the new user interface makes it very clear that the URL Path is associated with the URL where the application is available.