Python 3.13 Release News 2025 November [patched] Jun 2026

for root, dirs, files in Path("src").walk(): if "test" in root.parts: dirs.clear() # prune

| Benchmark (pure Python) | 3.12 | 3.13 | Δ | Notes | |------------------------|------|------|---|-------| | N-body (float loops) | 1.00x | 1.27x | +27% | JIT helps numeric ops | | JSON load/dump (large dict) | 1.00x | 1.18x | +18% | Improved dict layout | | Regex match (email extraction) | 1.00x | 1.12x | +12% | JIT + regex engine tweaks | | Startup time (import numpy ) | 1.00x | 0.93x | -7% | JIT warmup overhead | | Threaded (4 cores, GIL build) | 1.00x | 1.02x | +2% | Marginal | | Threaded (4 cores, no-GIL build) | N/A | 3.65x | N/A | Only for CPU-bound | python 3.13 release news 2025 november

Review date: November 15, 2025. Benchmarks performed on an Apple M2 (8-core), Ubuntu 24.04, Python 3.13.0 official release. for root, dirs, files in Path("src")

In November 2025, the Python ecosystem reached a significant milestone as matured into a stable, widely adopted choice for production environments , while the community simultaneously celebrated the launch of its successor, Python 3.14. widely adopted choice for production environments