detailed release notes - [link](https://github.com/rust-lang/rust/blob/master/RELEASES.md#version-1140-2016-12-22)
Thread
Stories related to "Announcing Rust 1.14" across the full archive.
C\. Scott Ananian explains some fundamental and other possibly fixable reasons Rust is slow: hidden indirection, unnecessary type-system mandated copying, ownership types, and so on.
Rust for C++ programmers - part 3: primitive types and operators
(featherweightmusings.blogspot.com)