What's Changed
Toolchain and implementation changes 🛠️
- Expose C++ reference returns as Carbon reference returns by @geoffromer in #6618
- Use a single llvm::Module for C++ interop and Carbon IRGen by @dwblaikie in #6595
Infrastructure changes 🏗️
- Switch sanitizer features to use OS config features by @chandlerc in #6609
- Replace complex sysroot handling with simplicity by @chandlerc in #6610
- Switch CPU flags to use feature-based selection and apply to links by @chandlerc in #6611
- Use OS config features for linking and simplify by @chandlerc in #6612
- Use OS features for Bazel controlling features by @chandlerc in #6613
- Move our project-specific features to their own file by @chandlerc in #6614
Full Changelog: v0.0.0-0.nightly.2026.01.16...v0.0.0-0.nightly.2026.01.17