> AFAIK, there are no more planned syntactic changes before
> 1.0.
I wouldn't count on this. :) The bar for breaking changes will continue to rise as we approach 1.0, but until that stable release is cut nothing is safe. Even the upcoming 1.0.0-alpha release in January will contain no concrete guarantee of syntax stability.
AFAIK, there are no more planned syntactic changes before 1.0. (just library changes and some minor semantic changes)
Also, with Rustup (http://doc.rust-lang.org/guide.html#installing-rust), it is very easy to stay current with the latest rust.
With the holidays coming around the corner, now is the perfect time to dive in!