# ExtensionVersionSummary
<a name="API_ExtensionVersionSummary"></a>

A version of an extension that you can install on a SageMaker HyperPod cluster.

## Contents
<a name="API_ExtensionVersionSummary_Contents"></a>

 ** ExtensionVersion **   <a name="sagemaker-Type-ExtensionVersionSummary-ExtensionVersion"></a>
The version of the extension, in `MAJOR.MINOR.PATCH` format, for example `1.0.0`.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Pattern: `[0-9]+\.[0-9]+\.[0-9]+`   
Required: Yes

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/sagemaker-2017-07-24/ExtensionVersionSummary) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/sagemaker-2017-07-24/ExtensionVersionSummary) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/sagemaker-2017-07-24/ExtensionVersionSummary)