> was addressed to completion in the initial version of the language. Rust's async functionality was not; it was added later. Rust async support is explicitly

> was addressed to completion in the initial version of the language. Rust's async functionality was not; it was added later. Rust async support is explicitly not complete. They've got an entire working group that's focused on improving it as per https://rust-lang.github.io/wg-async/vision/roadmap.html https://rust-lang.github.io/wg-async/vision/roadmap.html . > consider the trait system and borrow checker, two of the most important features of Rust that were present in v0 This is quite wrong in fact, early versions of Rust were very Go-like, with a focus on green threads and GC. Even Rust 1.0, released in 2015, had a very restrictive borrow checker compared to what's available today. Rust's editions system has allowed for a whole lot of pretty seamless evolution.