Python follows a lifecycle where only the newest major versions receive full support, including official binary installers. Once a version moves into security-fix-only mode, upstream stops shipping these installers.

From Python 3.12 release notes:

“Python 3.12 is now in the ‘security fixes only’ stage… releases of those are made irregularly in source-only form... binary installers are no longer provided.”

Source:
https://www.python.org/downloads/release/python-31213/

For older versions:

• Updates are source-only, not packaged installers
• No consistent or supported upgrade path on Windows
• Effectively shifts maintenance to manual builds or downstream distributions

Bottom line:
If upstream doesn’t ship a proper installer, we don’t have a reliable or safe way to patch it.