Yes, it is recommended that before you update you locally backup any content first, using a different file name.
- Select the Settings button.
- Select Backup/Restore.
- Select Backup Locally.
- Name your backup. (Name it something that you'll remember is from version 1.1.)
Repeat the above steps for the other users by first restoring locally, then backing up with a different file name.
Note: It is NOT recommended that you export pages from a version 1.1 or below NavBar pageset and import those pages in the new 1.2 version as it may cause issues within the software.