v27.1.0

Released 2026-06-02.

• Fixed: Support the new TOML 1.1 syntax that's supported by Cargo in Rust 1.94. Thanks to @Coruscant11.

• New: Mutate NonZero<T> into 1, and also into -1 when T is or may be signed. Previously, only types like NonZeroUsize were mutated.

• Docs: Clarify that #[mutants::skip] is honoured at every scope where attributes can be placed, not only on functions: impl blocks, trait declarations, modules, files (as #![mutants::skip]), and expressions that can carry an outer attribute. Only the documentation was misleading; the behaviour is unchanged.

• Fixed: Set the mtime on files copied using reflinks to the scratch directory, so that they're not deleted prematurely by tools that delete old files from /tmp.