> For the complete documentation index, see [llms.txt](https://docs.migration-center.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.migration-center.com/3.17-update-4/release-notes.md).

# Release Notes

## migration-center 3.17 Update 4

This release contains the following fixes and updates: 

* 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)

{% hint style="warning" %}
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](/3.17-update-4/importers/sharepoint-online-batch-importer.md#install-and-uninstall). 


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