In Cognos 8 MR2 and higher you can update all objects based on a package by creating a 'Report Upgrade Task' from within Cognos Connection.
In order to do this go to:
- Tools / Content Administration / ‘New Report Upgrade' from within the new content maintenance dropdown in the button bar.
- Enter a name that represents the objects that you will upgrade
- Select the items that you want to upgrade by navigating to their folder location and adding them to the ‘selected entries’ panel on the right side.
- Click OK / Next / Finish
- Click Run if you want to execute this task now
- [I always check the box for view details] / Click OK