New language

Runtime optional.
GC optional.
Static typing.
Binary compatibility with C.
Algebraic types.
Lambdas.
Traits.
Safe shared mutable state.

>>29
Yes it does. It's true that you can't move allocated data but you can defragment as you free and reallocate. It's a lot faster than compacting and tends to produce a lower memory requirement in long-running programs than compacting does (unless you schedule major collections to run about as often as you return from a call.)