I just saw this in the release notes of Reflex 0.8.15:

Python 3.14 got release on 10/07 and now Reflex supports it! It gives us very considerable performance improvements just by bumping.

If it indeed gives performance improvements without further changes, we should give it a try.

I think the following steps should be all that is needed (assuming no compatibility issues arise):

• Bump Python version in .python-version.
• Adjust the containers used in the two FROM lines in Dockerfile accordingly.