In testing, v6.5 handled large log files (1 GB+) with grep and sed without crashing. find with xargs works as expected. No memory leaks observed during 48-hour continuous runs.
| Check | Command / Method |
|-------|------------------|
| Binary architecture | file /path/to/otool → should be x86_64 (no ARM64 for v6.5) |
| Code signature | codesign -dv /path/to/ld → may be ad-hoc or missing (expected) |
| SDK compatibility | otool -l mybinary \| grep LC_VERSION_MIN – ensure SDK ≤ 10.11 |
| ld vs ld64 | ld -v – if shows ld64- something, you have modern linker; v6.5 uses older ld | Cctools 6.5 Download
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