[BUG] Unable to use Claude Code v2.1.17 on Older [2019] Intel Macs

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?

This week one of the recent updates doesn't allow me to use Claude code anymore on my older mac.

What Should Happen?

It should function as usual

Error Messages/Logs

✳  Loading conversations…                                                                                                                                                                
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Bun v1.3.5 (1e86cebd) macOS x64                                                                                                                                                          
macOS v15.7.3                                                                                                                                                                            
CPU: sse42 popcnt avx avx2                                                                                                                                                               
Args: "claude"                                                                                                                                                                           
Features: Bun.stderr(2) Bun.stdin(2) Bun.stdout(2) fetch(151) jsc spawn(18) standalone_executable process_dlopen 
Builtins: "bun:main" "node:assert" "node:async_hooks" "node:buffer" "node:child_process" "node:constants" "node:crypto" "node:domain" "node:events" "node:fs" "node:fs/promises" "node:http" "node:https" "node:module" "node:net" "node:os" "node:path" "node:path/posix" "node:path/win32" "node:perf_hooks" "node:process" "node:querystring" "node:stream" "node:timers/promises" "node:tls" "node:tty" "node:url" "node:util" "node:zlib" "node:worker_threads" "undici" "ws" "node-fetch" "node:inspector" "node:http2" "node:diagnostics_channel" 
Elapsed: 45038ms | User: 33624ms | Sys: 29451ms
RSS: 3.57GB | Peak: 5.69GB | Commit: 16.80GB | Faults: 30060 | Machine: 17.18GB

panic: Illegal instruction at address 0x106352409
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team,
please file a GitHub issue using the link below:

 https://bun.report/1.3.5/m_11e86cebmgEugogC__kv99oBy1thLo738Ikn66L___A3Cygy0mG

Steps to Reproduce

Open Claude Code on an older Mac (Intel):

Type something like /resume.

Crash happens

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.17

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_