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Python 3.13.0rc2, the preview of the upcoming 3.13.0 release scheduled for October 1, 2024, introduces an experimental free‑threading build, a new JIT, improved interactive interpreter, incremental garbage collector, updated typing features, and several module deprecations and removals.
Python 3.13 introduces major enhancements such as an improved REPL with multi‑line editing and colored error messages, the experimental free‑threaded build that removes the Global Interpreter Lock, and a new command‑line interface for the random module, all aimed at boosting developer productivity.
Python 3.13 introduces a revamped interactive interpreter with multiline editing, experimental free‑threading that can disable the GIL, an optional JIT compiler, module deprecations, new random CLI utilities, and updated locals behavior, offering developers a more powerful and flexible programming experience.