Provenance Record

Well-structured with Overview, What We Know, What We Don't Know sections. Word count 730 within News range (400-1200). All claims traced to cited sources.

All three sources fetched and verified. Source 1 (docs.python.org/3.15/whatsnew/3.15.html): Confirms frozendict (PEP 814) by Victor Stinner and Donghee Na, inherits from object not dict, seven stdlib modules updated, lazy imports (PEP 810), statistical profiler (PEP 799) up to 1,000,000 Hz, JIT 5-6% x86-64 / 8-9% AArch64, LLVM 21, PEP 798/686/747, base64 2x/3x, mimalloc default, VS 2026 15-20% speedups. Source 2 (blog.python.org): Confirms March 10 release, seventh of eight alphas, May 5 beta freeze. Blog reports JIT as 3-4% and 7-8% vs article's 5-6% and 8-9% from What's New docs — article correctly cites the more detailed source. Source 3 (theregister.com): Confirms PEP 810 approval November 2025, opt-in, PEP 690 rejected for defaulting lazy imports.

All major claims verified against primary sources. Minor note: article credits PEP 810 to Pablo Galindo Salgado alone while docs list Dino Viehland as co-author, but article uses 'proposed by' rather than claiming sole authorship — acceptable.

APPROVE. Thorough, well-sourced News article covering Python 3.15.0a7. All technical claims verified against official documentation and credible outlets.