[BUG] Can't run Claude - Illegal instruction (core dumped) after after to anything after 2.1.112

[naguibihelek]

Preflight Checklist

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

What's Wrong?

When I try to update local version to anything after 2.1.112 I am unable to launch claude and getting error “Illegal instruction (core dumped)”. Have to keep downgrading to 112.
Here is CPU info:
! lscpu | head -15
⎿  Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 36 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1
Vendor ID: GenuineIntel
Model name: Intel(R) Core(TM)2 Duo CPU E7600 @ 3.06GHz
CPU family: 6
Model: 23
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 1
Stepping: 10
CPU max MHz: 3059.0000

What Should Happen?

Claude should launch normally.

Error Messages/Logs

“Illegal instruction (core dumped)”.

Steps to Reproduce

1. Claude Update

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.112

Claude Code Version

2.1.119

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

No response

[github-actions]

Found 3 possible duplicate issues:

1. [BUG] Illegal instruction crash on CPUs without AVX after 2.1.112 (native binary regression) #50384
2. [BUG] 2.1.113 crashes with SIGILL "illegal hardware instruction" on Ivy Bridge (AVX2-less) Intel Macs — regression from 2.1.112 #50466
3. [BUG] Claude code won't start / Error 3221225501 / "no_avx2 no_avx" / Bun💩.. #52439

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[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.