ProxySG/Advanced Secure Gateway OS Upgrade/Downgrade Requirements and Resources
Last Updated November 07, 2018
What the requirements and resources are for upgrading or downgrading a ProxySG or Advanced Secure Gateway (ASG) operating systems
Blue Coat recommends adhering to supported SGOS/ASGOS upgrade paths and ensuring that configuration and policy migrations are done correctly.
Unsupported upgrade or downgrade paths can cause long-term unexpected behavior. Ultimately, these could cause a lack stability of the appliance, which could require a factory reset and manual reconfiguration to fix.
SGOS/ASGOS Release Notes are posted with General Availability (GA) release images on support.symantec.com > Downloads > Network Protection Downloads.