IBM Tivoli Monitoring > Version 6.3 Fix Pack 2 > Installation Guides > Installation Guide > Upgrade from a previous installation > Plan your upgrade > Prerequisites for IBM Tivoli Monitoring V6.3
IBM Tivoli Monitoring, Version 6.3 Fix Pack 2
Upgrade Tivoli Enterprise Services User Interface Extensions
If you upgrade any OS agent to V6.3 you must also separately upgrade the Tivoli Enterprise Services User Interface Extensions (tacmd CLI) on the same machine to V6.3. If tacmd CLI (product code ue) is not upgraded, commands run from this machine will fail.
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Prerequisites for IBM Tivoli Monitoring V6.3