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# versionAtCreation()

Provides the version number of a plug-in that a project uses.

```
func versionAtCreation() -> UInt32
```

## Return Value

An integer representation of the version number.

## Discussion

Typically, a plug-in’s version increments with each release. The exact semantics are up to the plug-in developer.

To support versioning, each plug-in within a bundle defines its current version number as a string value with a `version` key in the plug-in’s entry in the `ProPlugPlugInList` array in the plug-in’s Info.plist.

When a project is first created, the host application remembers the version number of each plug-in used in that project. Later, when the user opens the project, a plug-in can query the value of `versionAtCreation` and then handle any backward-compatibility issues.

---

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