[rush] Multiple warnings when using Rush with Node 24 and the latest pnpm (10.27.0)

[kgetz-arista]

Summary

rush update (and other Rush commands) displays multiple warnings when using the latest versions of Node, npm, Rush, and pnpm together.

Repro steps

Upgrade to the latest versions of Node, npm, Rush, and pnpm together and run rush update.

Expected result: No warnings

Actual result:

This warning appears when running any Rush command:

Your version of Node.js (24.12.0) has not been tested with this release of Rush. Please consider installing a newer version of the "@microsoft/rush" package, or downgrading Node.js.

These warnings appear when running rush update:

Running "npm install" in C:\Users\kgetz\.rush\node-v24.12.0\pnpm-10.27.0
(node:26424) [DEP0190] DeprecationWarning: Passing args to a child process with shell option true can lead to security vulnerabilities, as the arguments are not escaped, only concatenated.
(Use `node --trace-deprecation ...` to show where the warning was created)
npm warn Unknown project config "email". This will stop working in the next major version of npm.
npm warn Unknown project config "publish-branch". This will stop working in the next major version of npm.

Details

Rush seems to be lagging behind the rest of the web dev community. Node 24 has been out since May of last year and has been the official LTS version since October.

Standard questions

Please answer these questions to help us investigate your issue more quickly:

Question	Answer
@microsoft/rush globally installed version?	5.165.0
rushVersion from rush.json?	5.165.0
pnpmVersion, npmVersion, or yarnVersion from rush.json?	pnpm@10.27.0
(if pnpm) useWorkspaces from pnpm-config.json?	true
Operating system?	Windows 11
Would you consider contributing a PR?	No
Node.js version (node -v)?	24.12.0

[iclanton]

The next release of Rush will fix these. We have a prerelease out (v5.165.0-pr5496.2) that fixes the deprecation warnings, but still has the "Your version of Node.js (24.12.0) has not been tested with this release of Rush..." warning. We're letting this prerelease bake for a few more days and then the next minor bump (it'll be v5.166.0) will fix both of those issues.

[kgetz-arista]

@iclanton Okay great news! Thanks so much for the quick reply.