Aside: implementing deprecations is often harder than implementing new feature themselves. We put in the effort because it is absolutely critical that people's code never just silently change behavior. Syntax and variable scope deprecations are particularly hard to implement, but all of the changes in 0.7 do have deprecation warnings – some of them with absolutely crazy implementations that we're very excited to get to delete when we release 1.0.
The thing NOT to do is get mad because people are talking about something that you personally have never heard of.
The thing to REALLY not do is to actually expend energy posting a public statement about how you're upset because people are talking about things that you personally have never heard of and can't be bothered to spend a few seconds learning about. No good will ever come of it, especially when you could have spent that same time and energy answering your own question.
edit: Well, I did end up learning quite a bit about Julia - which sounds awesome - and got the best answer I ever got on here, which it seems others benefited from too, so that was good. :-)
In case you're curious, the website is https://julialang.org/
> Julia is a high-level, high-performance dynamic programming language for numerical computing. It provides a sophisticated compiler, distributed parallel execution, numerical accuracy, and an extensive mathematical function library.
The Chinese Wikipedia entry on the most common form of 'Lang' is anemic in comparison: https://zh.wikipedia.org/wiki/%E9%83%8E%E5%A7%93
