qBittorrent official forums

Why does qBittorrent Search Engine prompt to install the older Python 3.10.11 version by default when activating Search Engine from view menu even though the latest official Python version from the Python website is 3.12.1? No Python versions were installed before activating Search Engine.

Because it works. Python upgrades are different from other languages. One version change and it can break every script you run.
This is the reason. The developers change this automatically installed version every now and then when a new qBittorrent version comes out.
But yeah, don't worry about the version.

Also, you can have multiple Python versions installed. When you develop with PyCharm for example, or you just run a script from cmd, you can simply invoke the installation/version you want.

qBittorrent 5.0.0 is still using Python 3.10.11, why?