The v1 API had an endpoint for following a new project https://circleci.com/docs/api/v1/#follow-a-new-project-on-circleci

The v2 project endpoint currently does not have an equivalent config https://circleci.com/docs/api/v2/?section=reference#tag/Project

Some users rely on this endpoint, and it would be helpful as the v1 endpoints will be depreciated