Python 3.15’s JIT is now back on track
Summary
The article reports that CPython 3.15’s JIT is back on track with early performance gains on macOS AArch64 and x86_64 Linux. It attributes the progress to a community-driven effort, tracing-based optimizations, and reference-count elimination, highlighting the collaborative process and measurable improvements. The piece also outlines future goals (free-threading, targeted speedups by 3.15/3.16) and the importance of daily benchmarks and a broader contributor base.