The big blocker for this release was rustc's libsyntax. I'd like to say a big thanks to Erick Tryzelaar for porting libsyntax into the syntex_syntax crate, and for working hard to remove unstable features from libsyntax. Also I'd like to say a special thanks to Tamir Duberstein for helping to remove the dependency on rust unstable features.
And of course thanks to all the Racer contributors.
(BTW, a side effect of relying on a separate syntax crate is that build times for Racer have gone up dramatically. This is a shame, but I think a small price to pay for Rust 1.0 compatibility)