EP get upgraded from 7.0x release to 7.1x onwards release. Then you notice "View History" link is not shown in "You can also:" area after task get opened. Then you followed note 1803438 to make it shows up, but you found it shown as button other other than link in "You can also:" area. See following image as example.
SAP Netweaver 7.10 and higher
Display Details in SAP GUI, Manage Attachments, Create Ad-Hoc Request, View History, universal worklist, showButtonInPreviewArea, workitem, item type, action, xml file , KBA , EP-BC-UWL , Universal Worklist , Problem
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