---
title: version
framework: corehaptics
role: symbol
role_heading: Type Property
path: corehaptics/chhapticpattern/key/version
---

# version

A key that identifies rhe version number of a haptic pattern dictionary.

## Declaration

```swift
static let version: CHHapticPattern.Key
```

## Discussion

Discussion Use this version number to determine the scope of supported keys for a haptic dictionary.

## See Also

### Haptic Pattern Keys

- [event](corehaptics/chhapticpattern/key/event.md)
- [eventDuration](corehaptics/chhapticpattern/key/eventduration.md)
- [eventParameters](corehaptics/chhapticpattern/key/eventparameters.md)
- [eventType](corehaptics/chhapticpattern/key/eventtype.md)
- [eventWaveformLoopEnabled](corehaptics/chhapticpattern/key/eventwaveformloopenabled.md)
- [eventWaveformPath](corehaptics/chhapticpattern/key/eventwaveformpath.md)
- [eventWaveformUseVolumeEnvelope](corehaptics/chhapticpattern/key/eventwaveformusevolumeenvelope.md)
- [parameter](corehaptics/chhapticpattern/key/parameter.md)
- [parameterCurve](corehaptics/chhapticpattern/key/parametercurve.md)
- [parameterCurveControlPoints](corehaptics/chhapticpattern/key/parametercurvecontrolpoints.md)
- [parameterID](corehaptics/chhapticpattern/key/parameterid.md)
- [parameterValue](corehaptics/chhapticpattern/key/parametervalue.md)
- [pattern](corehaptics/chhapticpattern/key/pattern.md)
- [time](corehaptics/chhapticpattern/key/time.md)