There are lots of exciting new parts to Julia 0.6. I believe the linked NEWS.md is still in the process of being compiled and refined throughout the release-canditate cycles. Some of my favorite parts:

* Actually being able to safely redefine methods. Julia is now much more dynamic (and correct!).

* Dot-broadcasting is absolutely amazing and way more capable in 0.6: https://julialang.org/blog/2017/01/moredots

* The `@views` macro is a very small addition but much appreciated.