Congratulations! This seems an extremely important release, maybe even the most important since 1.0. Why? The lack of the trait deriving functionality on the st

Congratulations! This seems an extremely important release, maybe even the most important since 1.0. Why? The lack of the trait deriving functionality on the stable release has kept libraries that are actually quite central to the ecosystem, such as Serde and Diesel, using the nightly compiler – until now. The stabilisation of the trait deriving functionality is a small step for the compiler but a giant leap for the Rust ecosystem!