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# supportedDecoderVersions

A key for the supported decoder versions.

```
static let supportedDecoderVersions: CIRAWFilterOption
```

## Discussion

The associated value is  an <doc://com.apple.documentation/documentation/Foundation/NSArray> object that contains all supported decoder versions for the given image type, sorted in increasingly newer order. Each entry is an <doc://com.apple.documentation/documentation/Foundation/NSDictionary> object that contains key-value pairs. All entries represent a valid version identifier that can be passed as the `kCIDecoderVersion` value for the key `kCIDecoderMethodKey`. Version values are read-only; attempting to set this value raises an exception. Currently, the only defined key is `@"version"` which has as its value an <doc://com.apple.documentation/documentation/Foundation/NSString> that uniquely describing a given decoder version. This string might not be suitable for user interface display.

---

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