The maintenance of UCS 4.2 ended on March 31, 2019. Users still using UCS 4.2 should update to a more recent version of UCS to continue to receive security updates, bug fixes, and minor releases. To update to the latest UCS version 4.4, you must first update to UCS 4.3. A description of the steps required for the update can be found in the release notes of UCS 4.3.

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