---
title: "ShaderGraph.NodeDefinition.Availability.available(introduced:deprecated:obsoleted:)"
framework: realitykit
role: symbol
role_heading: Case
platforms: [iOS 27.0+, iPadOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: "realitykit/shadergraph/nodedefinition/availability-swift.enum/available(introduced:deprecated:obsoleted:)"
---

# ShaderGraph.NodeDefinition.Availability.available(introduced:deprecated:obsoleted:)

## Declaration

```swift
case available(introduced: OperatingSystemVersion?, deprecated: OperatingSystemVersion?, obsoleted: OperatingSystemVersion?)
```