Save a backup copy of your switch configuration before upgrading to VOSS 8.4. VOSS 8.4 contains significant enhancements, which cannot be used in previous software versions. Downgrading to an earlier release will require a compatible configuration file.
For devices running VOSS 8.3 or later that connect to ExtremeCloud IQ using ExtremeCloud IQ Agent versions 0.4.0 or higher, you cannot downgrade to VOSS 8.2.x and connect to the cloud automatically. After you downgrade to VOSS 8.2.x, you lose connectivity to ExtremeCloud IQ so you must install a VOSS 8.2.x compatible ExtremeCloud IQ Agent version to re-establish connectivity.
Contact support for assistance with installation of the VOSS 8.2.x compatible ExtremeCloud IQ Agent version. For the support phone number in your country, visit: www.extremenetworks.com/support/contact.