# Release Notes

## migration-center 3.17 Update 4

This release contains the following fixes and updates:&#x20;

* Updated spring libraries for potential vulnerability CVE-2022-22965 (#61574)
* Fixed error when setting user attributes to "Guest" user using the SharePoint Online Batch Importer (#60948)

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Updating from version 3.17 Update 3 requires replacing only the Jobserver component.
{% endhint %}

Remember to reinstall the CSOM service as well for the SharePoint Online Batch Importer as described [here](https://docs.migration-center.com/3.17-update-4/importers/sharepoint-online-batch-importer#install-and-uninstall).&#x20;