It's just incredibly young at this point, and still in a phase where making breaking changes for the sake of the language vision is acceptable. Swift has been i

It's just incredibly young at this point, and still in a phase where making breaking changes for the sake of the language vision is acceptable. Swift has been in the same boat. I'm sure that will change in the near future. Luckily both languages have great compilers that catch backwards-incompatible issues.