Rust’s never type finally stabilizes on nightly
After a decade of instability, five failed attempts, and more than two years of focused work, Rust’s ! never type is now stable on nightly (pending the next nightly release). The one-minute announcement understates the hard part: making a bottom type interact with inference, fallback, unimplemented!, unit types, and existing crates without silently breaking old code.
Lobsters commenters point to the Rust team’s compatibility constraints and the long-tail crater work needed to make the change viable. The post is a useful marker for a language feature that has been blocked by edge cases rather than by its core semantics.