We have optimized the initial loading of the Versions view by making the context version column hidden by default. This "top-item" column is labeled according to the name of the top item in the structure tree, and shows the use of the different versions of each item in the context of the top item in the structure tree. 

This column is optional and can be displayed on an as-needed basis by selecting the Show context versions option in the right-click menu or by right-clicking on the header row and selecting it. 

Context Menu in View

Version History Header Menu

ISSUE ID: 13488