tl;dr: Over the past two months, the Rust compiler saw a mean 4.57% wall-time reduction across benchmarks, with 555 of 629 measurements improving. Major contributors include an LLVM 23 upgrade, PGO for Clippy (up to 18% faster), rustdoc optimizations, dataflow analysis changes yielding ~30% speedups on cranelift-codegen, and ongoing work to mitigate regressions from the newly-enabled Polonius borrow checker and next-gen trait solver on Nightly. The author is also starting a new role at Hexcat focused on compiler performance.