Python 3.10 EOL 2026-10-01 used in Windows

Continued use of Python 3.10 in Jenkins Windows systems causes failure of open PR nodejs/node#66662 intended to drop the end-of-life Python 3.10 from support in the main branch of Node.js.

Python 3.10 EOL 2026-10-01

https://ci.nodejs.org/job/node-test-pull-request/78315/ failing

PR nodejs/node#66662 plans to drop support for Python 3.10 in the main branch of https://github.com/nodejs/node and for the future Node.js 27 release. This PR is currently failing in Jenkins for Windows, where jobs are attempting to run under Python 3.10.8 (see nodejs/node#66662 (comment)). Python 3.10 entered end-of-life on 2026-10-01.

Python 3.15 release 2026-10-09

PR nodejs/node#65750 landed in nodejs/node@85543c1 to update the main branch of https://github.com/nodejs/node to allow Python 3.15 and use it in GitHub Actions workflows. This is expected to be backported to release lines.

Current and future Python allowed versions

Node.js branch	Current Python versions	Planned Python versions
main	3.10 - 3.15	3.11 - 3.15
26.x	3.10 - 3.14	3.10 - 3.15
24.x	3.9 - 3.14	3.9 - 3.15
22.x	3.8 - 3.14	3.8 - 3.15

Python 3.11 - 3.14 would be the safe range that fits current and planned versions for all release lines and main.

It looks like this would be from:

build/ansible/roles/baselayout-windows/tasks/main.yml

Lines 15 to 27 in 0cebb10

    
           - name: install Python 3 
        
             win_chocolatey: 
        
               install_args: Include_launcher=1 
        
               name: python3 
        
               pinned: yes 
        
               version: "3.10.8" 
        
           - name: install Python 3 
        
             win_chocolatey: 
        
               install_args: Include_launcher=1 
        
               name: python 
        
               pinned: yes 
        
               version: "3.10.8"

Possibly pin instead to Python 3.14.8 ?

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Python 3.10 EOL 2026-10-01 used in Windows #4514