# OSRelease
<a name="API_OSRelease"></a>

The Amazon Linux release specified for a cluster in the RunJobFlow request.

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

 ** Label **   <a name="EMR-Type-OSRelease-Label"></a>
The Amazon Linux release specified for a cluster in the RunJobFlow request. The format is as shown in [https://docs.aws.amazon.com/AL2/latest/relnotes/relnotes-20220218.html](https://docs.aws.amazon.com/AL2/latest/relnotes/relnotes-20220218.html). For example, 2.0.20220218.1.  
Type: String  
Required: No

## See Also
<a name="API_OSRelease_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/elasticmapreduce-2009-03-31/OSRelease) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/elasticmapreduce-2009-03-31/OSRelease) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/elasticmapreduce-2009-03-31/OSRelease)