Enterprise accounts now have a public schema preview available for GitHub Enterprise Cloud. As part of this preview, enterprise owners have the ability to manage enterprise accounts via the GraphQL API.
You can no longer use password-based HTTP basic authentication for the few endpoints on GitHub.com that previously supported it. The affected endpoints include Atom feeds, a legacy repository archive endpoint, and a GitHub Enterprise only “stafftools reports” endpoint. This functionality will continue to work with personal access tokens. Password-based HTTP basic authentication for these endpoints will continue to function for GitHub Enterprise, but is deprecated and will be removed in an upcoming release.