The most recent large effort in the 3.0 series was to break apart all of the 'magic features' into coherent conceptual units. So if you know what you want you can now use only the magic dust that you think you need. But those units are also still part of the ember such that it's still possible to type '>ember new' and have a fully loaded ready-to-go framework in 10 seconds.

And fastboot.

And glimmer.

It's really nice environment to work in when building a full featured web-app.