February 9, 2021 Servicing Stack Update (KB4601394)

Improvements and fixes

This update makes quality improvements to the servicing stack, which is the component that installs updates. Servicing stack updates (SSU) make sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates. 

• This update enables a single package design that incorporates the servicing stack update (SSU) into the latest cumulative update (LCU). Combining the SSU and LCU update into a single package provides a more seamless deployment and installation experience. For more information, see Simplifying the on-premises deployment and installation of servicing stack updates.

How to get this update

The February 9, 2021 servicing stack update (KB4601394) for Azure Stack HCI is delivered from the release channels below. To install it on your Azure Stack HCI cluster, see Update Azure Stack HCI clusters.

Install this update

Restart information

You don't have to restart your computer after you apply this update.

Removal information

Servicing stack updates (SSUs) make changes to how updates are installed and cannot be uninstalled from the device.

File information

For a list of the files that are provided in this update, download the file information for cumulative update 4601394.

Note Some files erroneously have "Not applicable" in the "File version" column of the CSV file. This might lead to false positives or false negatives when using some third-party scan detection tools to validate the build

References

For information on SSUs, see the following articles:

• Servicing stack updates

• Servicing Stack Updates (SSU): Frequently Asked Questions

Learn about the terminology that Microsoft uses to describe software updates.