They did not outright announce it but they dropped several hints that this is the direction they were going, enumerated here: https://news.ycombinator.com/item?

They did not outright announce it but they dropped several hints that this is the direction they were going, enumerated here: https://news.ycombinator.com/item?id=28249905 https://news.ycombinator.com/item?id=28249905