The Python 3.13.0 alpha release includes colorized exception tracebacks, a preliminary JIT for performance enhancement, incremental garbage collection, and docstring memory optimization. It also introduces a new default dbm.sqlite3 backend in the dbm module.
Python 3.13 will remove deprecated classes, functions, and methods, with new deprecations scheduled for Python 3.15 or 3.16. C API removals and deprecations have also been ongoing.
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