February 2026 (2026-02) - rust-lang/rust Summary: Implemented sanitizer distribution support by introducing new MemorySanitizer and ThreadSanitizer targets, enabling default MSAN/TSAN instrumentation and the distribution of sanitizer-instrumented standard libraries via a dedicated rustup component. This removes the need for new rustc flags for downstream users and aligns with the existing sanitizer distribution workflow. The work is captured in commit de351814b37907ccadf3cb503218b340698e394d.

Month 2026-01: Focused on stabilizing sanitizer builds in CI for rust-lang/rust. Delivered support for the x86_64-unknown-linux-gnuasan target in CI, ensured sanitizer environment variables are correctly set in the Docker image, and fixed related CI workflow issues to reliably build and run sanitizer targets, improving early detection of sanitizer regressions.

Monthly summary for 2025-11 focusing on delivering an ASAN-enabled Rust target by default and related safety tooling. The work enables memory-sanitized builds and safer testing workflows by distributing instrumented standard libraries via a dedicated rustup component, improving reliability for Rust applications and easing cross-compilation efforts.

July 2025: Delivered foundational stabilization for MemorySanitizer and ThreadSanitizer support in the rust-lang/rust-project-goals repository, including bug fixes and provisioning for precompiled standard libraries. Initiated roadmap alignment by proposing a 2025H2 sanitizer stabilization goal, laying groundwork for broader adoption and security improvements across the Rust project.