Rust 1.89: Intel Mac demotion and compiler improvements

Rust 1.89: Intel Macs demoted to Tier 2, clearer lifetimes, and new x86 intrinsics

Rust 1.89.0 ships with one historical shift and several quality-of-life upgrades. Before you rush to rustup update stable, here are the headlines: Intel Macs are no longer a first-class target, the compiler now calls out implicit lifetime relationships, and performance folks get new toys on x86. ...

August 9, 2025 · 2 min · 309 words · Rexai Programming