How to upgrade Observer
New and past versions of Observer software are made available to you directly from VIAVI. Use the Observer upgrade tool to check for, download, or install a version of Observer.
Prerequisite(s):  
Internet access to update.viavisolutions.com (port 80) is required on the system interacting with the VIAVI upgrade repository. This includes checking for upgrades and downloading upgrades.
Only if your application or appliance is managed by OMS, LAN access to the OMS system over port 8008 (default) is required for downloading upgrades.
Proxy settings can be used if direct Internet access is unavailable.
 
The Observer upgrade tool allows you to:
Check the VIAVI upgrade repository for old and new versions of Observer.
Download any available version of Observer for offline installation.
Install any available version of Observer without needing to leave the Observer interface.