# Amazon EMR 6.6.0 - Tez release notes
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## Amazon EMR 6.6.0 - Tez changes
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| Type | Description | 
| --- | --- | 
| Backport | [TEZ-3918](https://issues.apache.org/jira/browse/TEZ-3918): Fixed tez.task.log.level property not working. | 
| Backport | [TEZ-4353](https://issues.apache.org/jira/browse/TEZ-4353): Update commons-io to 2.8.0. | 
| Backport | [TEZ-4114](https://issues.apache.org/jira/browse/TEZ-4114): Remove direct jetty dependency from tez. | 
| Backport | [TEZ-4323](https://issues.apache.org/jira/browse/TEZ-4323): Jetty jars were removed from dist package with TEZ-4114. |