Before creating a new version, run the Related Materials Report to check the impact the new version has on all initiatives (select the IETM and then Preview 
). This will let you know exactly where the IETM is currently in use/cited.
To version an IETM, select it in the list, then select Create New Version 
. Upload the latest IETM extraction file, make any other needed changes to the details, and Save the updated IETM.
After you created the new version, you can run the Impact Report (select the IETM and then Preview ). This will list every initiative and place within the initiatives where any previous version of the selected IETM is cited or used and whether the cited node has been modified or deleted.
You can update 
to the latest version of an IETM in your initiative on the:
•TNA/TMD > Training Data > Resources screen, for IETMs listed in the TNA or TMD respectively. This will update the IETM to the latest version in your initiative.
•Resource Management screen on the Analysis/Design tabs under the Initiative Management folder, for any IETM cited or used anywhere in your initiative. This will update the IETM to the latest version in your initiative.
•Cited Resources screen for any IETMs that are cited anywhere below the selected table of contents item on the Develop tab. This will update the IETM to the latest version only in the selected table of contents item or anywhere below it in the tree structure.
Select the IETM to update on your selected screen. Then select Update above the list to update to the latest version of the IETM. Any flags will change from New Version flags 
to System flags 
to help you find the places to check for possible updates to the content.