- Sources: GitHub release
- Summary: The Rust project published 1.97.1 on 2026-07-16, a point release one week after 1.97.0. It fixes a miscompilation in an LLVM optimization (rust-lang/rust issue 159035) by backporting an LLVM submodule bump that carries the LLVM-side fix and reverting the rustc change identified as one known trigger, which the notes describe as done out of caution. No other changes ship in the release.
- Why it matters: A miscompilation can turn correct source into wrong code, so toolchain and CI images on the 1.97 line should move to 1.97.1.
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