Windows x64 repeated crash: Bun 1.3.11 panic: invalid enum value (fixed in oven-sh/bun#28721)

Summary

Claude Code 2.1.92 (native install) crashes repeatedly on Windows 11 x64 with panic: invalid enum value in bundled Bun 1.3.11. The root cause has already been fixed in Bun upstream (oven-sh/bun#28721), but Claude Code still bundles the affected Bun version.

Environment

• Claude Code: 2.1.92 (native)
• Bun: 1.3.11 (6f0a17c3) — bundled with Claude Code
• OS: Windows 11 x64 (baseline)
• CPU: SSE4.2, AVX, AVX2
• RAM: 68.41GB machine, ~0.6GB RSS at crash

Reproduction

Crashes occur during normal usage — no specific trigger. Crash timing varies:

• 1st crash: ~22 seconds (Elapsed: 21973ms)
• 2nd crash: ~65 seconds (Elapsed: 64786ms)
• 3rd crash: ~7 seconds (Elapsed: 7401ms)

All crashes produce identical output:

panic(thread XXXXX): invalid enum value
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

Crash report: https://bun.report/1.3.11/e_16f0a17cmgggEuhogCkpt8QywzmNgrnkH0tvzQg9k6TCYKERNEL32.DLLut0LCSntdll.dll4gijBA0eNrLzCtLzMlMUUjNK81VKEvMKU0FAEK2Bvo

Stack trace modules

• KERNEL32.DLL
• ntdll.dll

Related Bun issues

• oven-sh/bun#28721 — panic: invalid enum value in openDirAtWindowsNtPath (standalone executable, Windows x64 baseline) — closed/fixed
• oven-sh/bun#26496 — same symptoms, still open

Request

Please update the bundled Bun runtime to a version that includes the fix from oven-sh/bun#28721.