Python 3.13’s installer lets you install the free-threaded build of Python side-by-side with the regular build. You can use the “py” utility to select which one to use for a given program.

The Python development team has announced the arrival of 3.14's first release candidate before its official launch in October ...

In this case, the Python 3.14 instance shown in green (at the top of the screen) is managed by the Python Installation Manager; the others were added by hand earlier.