# Document history
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The following table describes the important changes to the documentation since the last release of Amazon MWAA Serverless. For notification about updates to this documentation, you can subscribe to an RSS feed.

| Change | Description | Date | 
| --- |--- |--- |
| [Python and Bash operator support](#doc-history) | Added documentation for running custom Python code and shell scripts as workflow tasks using `PythonOperator` and `BashOperator`, including code packaging, pre-installed packages in the Amazon MWAA Serverless execution environment, and code versioning. Also added a code storage quota to the quotas page. | August 17, 2026 | 
| [Minor Updates](#doc-history) | Updated service quota to reflect the correct Max Xcom default value. | January 14, 2026 | 
| [Initial release](#doc-history) | Initial release of the Amazon MWAA Serverless service and user guide. | November 17, 2025 |