[smitherfield]

I have to say I don't know of any other language where the maintainers have such a cavalier attitude towards making breaking changes. It makes the common analogy between Scala and C++ a bit ironic.

Not that that's necessarily a bad thing; it's good to have some popular languages that follow a less conservative approach, if only to get some real-world experience with different strategies for dealing with the tradeoffs between keeping a language modern and maintaining backwards compatibility with legacy code.