The View History window supports saving and searching history comments. These comments may be optional or compulsory per save, depending on the configured Administration Edit History Settings.
View results for a single object where the history list displays all revisions for the selected object, or for multiple objects where the history list displays all revisions for each of the selected objects.
Search the library for the objects you are interested in, then select the objects and use the View History window. From the window, you can compare two entries for the same object, or export the history records for all of the objects in the window to a CSV file.
From the object list you can also right-click an object and then open it or locate it in the library.