Last week, the CPython developers rolled out CPython 3.14.0b1. This week, PyCon 2025 kicks off in Pittsburgh, PA. Both events mark a significant milestone for the effort to ship and stabilize free-threaded Python. This is the story of the first year of that effort and how our team at Quansight played a key role in enabling experimental use of the free-threaded build with real production workflows that depend on a complex set of dependencies. Support for free-threaded Python unlocks the full comp...