# Amazon EMR 7.5.0 - Tez release notes
7.5.0 release notes

## Amazon EMR 7.5.0 - Tez changes
Tez changes


| Type | Description | 
| --- | --- | 
| Improvement | Enabled preemption of task by default | 
| Improvement | Increased number of record readers to asynchronously and proactively init to 10 | 
| Improvement | [TEZ-4580](https://issues.apache.org/jira/browse/TEZ-4580): Slow preemption of new containers when re-use is enabled |