# HelmChartVersionAnnotation Properties

- Package: [Aspire.Hosting.Kubernetes](/reference/api/csharp/aspire.hosting.kubernetes.md)
- Type: [HelmChartVersionAnnotation](/reference/api/csharp/aspire.hosting.kubernetes/helmchartversionannotation.md)
- Kind: `Properties`
- Members: `1`

An annotation placed on a [KubernetesEnvironmentResource](/reference/api/csharp/aspire.hosting.kubernetes/kubernetesenvironmentresource.md) that specifies the Helm chart version for deployment.

## Version

- Name: `Version`
- Modifiers: `get`
- Returns: `ReferenceExpression`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Kubernetes/Annotations/HelmChartVersionAnnotation.cs#L18)

Gets the Helm chart version as a `ApplicationModel.ReferenceExpression`.

```csharp
public ReferenceExpression Version { get; }
```