TLDR Tech / DevOps
Python 3.15's JIT is now back on track
Python 3.15's JIT has finally achieved modest but real speedups (≈5–12% on average) after earlier versions underperformed, thanks largely to community-driven development, better contributor onboarding, and a few high-impact technical bets like trace recording and reference count optimizations. The turnaround was less about any single breakthrough and more about the right people, collaboration, iterative improvements, and some luck aligning at the right time.
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