# Amazon EMR 7.9.0 - Hadoop release notes
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## Amazon EMR 7.9.0 - Hadoop changes
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| Type | Description | 
| --- | --- | 
| New Feature | Automatic Configuration Mapping: EMRFS filesystem configuration are automatically applied to corresponding S3A filessystem configuration enabling seamless migration from EMRFS to S3A. | 
| New Feature |  [YARN Conatainer bin-packing](https://docs.aws.amazon.com/emr/latest/ReleaseGuide/Hadoop-container-yarn.html): scheduling policy for aggresive downscaling | 
| Backport |  YARN-11752 : Global Scheduler: Improve the container allocation time | 
| Bug Fix |  S3A: Fix IAMCredentialsProvider Returning Expired Credentials  | 
| Bug Fix |  Fix `yarn.log.server.url` configuration value for clusters with in-transit encryption enabled |