[BUG] "version" (which is not a real command?) reports wrong Claude Code version number

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Quirky: If I start Claude Code, the header says Claude Code v2.1.74. But if I type "version" at the prompt and press Enter, it reports a different version number, v1.0.33:

❯ version

⏺ Claude Code v1.0.33

  Environment:
  - Model: Claude Opus 4.6 (claude-opus-4-6)
  - Platform: macOS (Darwin 25.2.0)
  - Shell: zsh
  - Working directory: /Users/mike/src/claude-code

  Git status: Clean, on branch main

As far as I know, version (no slash) isn't even a real command; but in any case, this output seems misleading re: the Claude Code version number.

What Should Happen?

Should report the correct current version number of Claude Code, the same one that is in the header.

Error Messages/Logs

Steps to Reproduce

1. Start claude at command line
2. Just type version and press return

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.74

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_