What is happening with Thinkster? Lastest update on React course is last year (github.com)

What "course" are you referring to? The link goes to an open-source "Real World" app example project. It's a community thing, not owned by any one person or group as far as I know.

Bjvb

If you want an up to date React course I suggest: https://fullstackopen.com/en/

"Learn React, Redux, Node.js, MongoDB, and GraphQL in one go! This course will introduce you to modern JavaScript-based web development. The main focus is on building single page applications with ReactJS that use REST APIs built with Node.js."