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Python 3.14 Alpha 5 Released With New Tail-Call Interpreter

([Programming] 67 Minutes Ago Python 3.14 Alpha 5)


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.

Most significant with Python 3.14 Alpha 5 is the introduction of [1]the new and optional tail-call interpreter that can deliver up to 30% faster Python code. The tail-call interpreter for now needs to be compiled with Clang 19 or newer on x86_64 or AArch64. GCC support is expected in the future. 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.

More details on the Python 3.14 Alpha 5 changes and downloads via the [2]Python blog .

Python 3.14 Alpha 6 is expected on 14 March followed by the seventh and final alpha version in April. After that are four planned betas and two release candidates to get through the summer months. If all goes well Python 3.14.0 final will be out on 7 October.



[1] https://www.phoronix.com/news/Python-3.14-New-Interpreter

[2] https://pythoninsider.blogspot.com/2025/02/python-3140-alpha-5-is-out.html


phoronix

The justifications for drug testing are part of the presently fashionable
debate concerning restoring America's "competitiveness." Drugs, it has been
revealed, are responsible for rampant absenteeism, reduced output, and poor
quality work. But is drug testing in fact rationally related to the
resurrection of competitiveness? Will charging the atmosphere of the
workplace with the fear of excretory betrayal honestly spur productivity?
Much noise has been made about rehabilitating the worker using drugs, but
to date the vast majority of programs end with the simple firing or the not
hiring of the abuser. This practice may exacerbate, not alleviate, the
nation's productivity problem. If economic rehabilitation is the ultimate
goal of drug testing, then criteria abandoning the rehabilitation of the
drug-using worker is the purest of hypocrisy and the worst of rationalization.
-- The concluding paragraph of "Constitutional Law: The
Fourth Amendment and Drug Testing in the Workplace,"
Tim Moore, Harvard Journal of Law & Public Policy, vol.
10, No. 3 (Summer 1987), pp. 762-768.