The plan is to have those unstable parts disabled in the stable compiler, so that any program that works with rustc 1.0 will work with rustc 1.x etc. One can us

The plan is to have those unstable parts disabled in the stable compiler, so that any program that works with rustc 1.0 will work with rustc 1.x etc. One can use those parts via the nightly branch. The plan is also to try to have much of the most useful parts of the stdlib stable (at least the core functionality). More info: - https://github.com/rust-lang/rfcs/pull/507 https://github.com/rust-lang/rfcs/pull/507 - http://blog.rust-lang.org/2014/12/12/1.0-Timeline.html http://blog.rust-lang.org/2014/12/12/1.0-Timeline.html