Highlight changes related to repository in Eclipse.
Goto Menu -> Windows -> Preferences Above window will get opened, then follow below steps:- Step 1: Goto General Step 2: Editors Step 3: Text Editors Step 4: Quick Diff Step 5: Enable Quick Diff Step 6: Show Differences in Overview ruler Step 7: Select - Latest CVS Revision Step 8: Click Apply Step 9: Click OK Now you can see difference in editors, if not seen then restart eclipse once.