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Python 3.14 Alpha 5 Released With New Tail-Call Interpreter
Python 3.14 Alpha 5 is out today as the latest of many development releases in stepping toward the Python 3.14 stable release in October.
The tail-call interpreter for now needs to be compiled with Clang 19 or newer on x86_64 or AArch64. There should be some very significant gains for those wanting to make use of the tail call interpreter, especially for Python builds with Profile Guided Optimizations (PGO) enabled. After that are four planned betas and two release candidates to get through the summer months.
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