# panic: runtime error: index out of range

- **ID:** `go/panic-runtime-error-index-out-of-range`
- **Domain:** go
- **Category:** range_error
- **Verification:** official
- **Fix Rate:** 80%

## Root Cause

Accessing a slice or array with an index >= len(slice). Check the index bounds before access.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| 1.x | active | — | — |