Your workspace is automatically upgraded the first time you launch the new IDE. This process is 
            entirely automated and can't be prevented. If you need to revert to an older version of the IDE, 
            be sure to read Reverting to an older version of the IDE.
         
         
         
         Note the following: 
         
         
            - By default, the IDE offers to put your workspace in 
               home_directory/ide-4.7-workspace on Linux, 
               and C:\ide-4.7-workspace on Windows, whereas in 6.4.1 it 
               was ide-4.6-workspace, in 6.4.0 it was 
               ide-4.5-workspace, and earlier the default was 
               workspace, so now there's less chance of accidentally migrating 
               your old workspace. 
            
- When you import existing projects, you now have the option of making a copy 
               of it in your workspace. This is preferable because it leaves the original untouched 
               as a backup. See Importing projects in the Project and Wizard Properties Reference chapter.