configure does not support Python 3.15

[rubyFeedback]

What is the problem this feature will solve?

Trying to compile node-v26.8.1 on linux today.

I get:

Node.js configure: Found Python 3.15.0...
Please use python3.14 or python3.13 or python3.12 or python3.11 or python3.10.

But I think python 3.15 rc1 should work too. Is this check perhaps a bit too
conservative? Or is there a way to work around it?

Anyway I guess I'll downgrade python momentarily to compile node, but I think
python 3.15 should work fine. Just reporting this here.

TL;DR: Please consider supporting python 3.15, even if it is not yet stable, for
configuring and then compiling node. In my opinion it should work just fine
for the compilation step.

[sxa]

Locally you can adjust acceptable_pythons near the top of the configure script to allow it to run 3.15. Obviously "at your own risk" :-)

It might just work ... It might not. A few years ago I did propose a change that gave you a hint on how to make this change - #41051 - but it was rejected.

[MikeMcC399]

8bc7dfd was the equivalent for updating to 3.14 prerelease.

The release team actually specifically asked to remove allow-prereleases: true later however.

I would expect Python 3.15 to get addressed nearer to its planned release date of 2026-10-01.