If you look at the changes and cathegorize them they all fall in one if three camps: - sugar for quality of life improvements that benefits everyone (like ? or

If you look at the changes and cathegorize them they all fall in one if three camps: - sugar for quality of life improvements that benefits everyone (like ? or NLL) - new feature that lets you do something that couldn't be done before (like impl Trait or global allocators) - new feature that removes a special case of the semantics that can be extrapolated from already present features (like associated consts and subslice patterns)