When you upgrade to WebSphere Application Server Version 8.5.5, the Liberty feature is removed. WebSphere eXtreme Scale can handle the feature being removed in this scenario. However, if you roll back to WebSphere Application Server Version 8.5, the Liberty feature is added back again, which can cause problems for WebSphere eXtreme Scale.
Resolving the problem
Do not roll back to WebSphere Application Server Version 8.5 after you upgrade to Version 8.5.5.
|Application Servers||WebSphere DataPower XC10 Appliance||Install and Migration||2.5|