It was announced on the blog (https://blog.jetbrains.com/blog/2021/03/11/project...

jacques_chester on March 18, 2021 | parent | context | favorite | on: Eclipse IDE 2021-03

It was announced on the blog (https://blog.jetbrains.com/blog/2021/03/11/projector-is-out/). The actual website is surprisingly tricky to find, doesn't seem to have climbed google indices yet.