[BUG] "illegal hardware instruction" on Intel Core i7-3615QM @ 2.30GHz

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?

I followed the instructions and install with Homebrew, I got 🍺 claude-code was successfully installed!.
I tried to verify that Claude Code was working after installation, but it didn't with "zsh: illegal hardware instruction" on macOS 15 with intel Core i7 CPU.

Environment:

• MacBook Pro: Retina, Mid 2012
• macOS: Sequoia 15.7.4 (24G517)
• CPU: Intel(R) Core(TM) i7-3615QM CPU @ 2.30GHz
• Memory: 8 GB 1600 MHz DDR3

Request: Please provide builds working on Intel Core i7, or document minimum CPU requirements.

What Should Happen?

Claude Code is not work.

Error Messages/Logs

$ claude --version
zsh: illegal hardware instruction  claude --version

Steps to Reproduce

1. Install Claude Code: brew install --cask claude-code
2. Check Claude Code version: claude --version
3. Error appears: zsh: illegal hardware instruction

Claude Model

None

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

Cannot run claude --version

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

My MacBook doesn't officially support macOS 15, so I installed it using the OpenCore Legacy Patcher.