Firmware upgrade path for Email Security Appliances
03/26/2020 152 11116
The upgrade path for Email Security Appliances is:
NOTE: Firmware version 9.2.x and newer are only supported on 64 bit platforms
TIP: After every upgrade step, let the ES Appliance process mail for at least 30 minutes before completing the next step in the upgrade path.
CAUTION: Skipping a version in the upgrade path will result in file corruption that may render the appliance unusable.