Last pnpm version that worked

10.33.2

pnpm version

11.0.3

Code to reproduce the issue

pnpm -g ls --json

Expected behavior

The command should output valid JSON (array, object, or NDJSON), consistent with the documented behavior of --json and with pnpm 10.x behavior.

Actual behavior

pnpm 11 prints plain text instead of JSON, for example:

@eslint/config-inspector@2.0.0
@github/copilot@1.0.39
vite@8.0.10

This is not valid JSON and cannot be parsed.
The same command in pnpm 10 returned proper JSON.

Additional information

• This regression affects tools that rely on pnpm ls --json for global package inspection (e.g., npm‑check‑updates).
• The non‑global command pnpm ls --json still outputs JSON correctly.
• The regression appears primarily on Windows (PowerShell), but may affect other environments.

Node.js version

24.15.0

Operating System

Windows