None? They ignored multiple instances of community feedback. Broke countless current PRs and upstream libraries. And moreover, going forward I expect another surprise from them. Another surprise that I ain't gonna like.

Rails backend is in a good shape, but I don't like being dependent on a dictator's decisions on the frontend. I don't understand why Rails team don't understand that.

But from the other side I'm thankful to DHH, because now I use more Elixir, and Crystal. Those are awesome tools, and 37signals-free world feels so much better. It's not toxic.