Rust 1.99.1 is a point release that fixes three regressions: a missing `wcslen` symbol causing link errors on some targets (notably UEFI), a miscompilation of FFI bool return values on x86_64 that left upper bits unspecified, and a rust-lld failure on macOS due to missing libLLVM library path.
Background
Rust 1.99.x is part of the ongoing release cycle of the Rust programming language, which follows a six-week release schedule. This point release focuses on stability fixes rather than new features.
- Source
- Lobsters
- Published
- Oct 16, 2026 at 07:03 AM
- Score
- 5.0 / 10