The licensed components on CAS vary in how they are managed. The licensed components include the appliance's base license and Sandboxing, while Malware vendors and Whitelisting services are subscription-based.
Update settings are not documented in CAS configuration guide. However, you can find license details by running command " show license" example as below:
CAS# show licenses * Base license * Kaspersky Labs (1839 days remaining) McAfee, Inc. (unknown) Sophos, Plc. (1839 days remaining) * Sandboxing * Whitelisting (1839 days remaining) CAS#
You can also see this via the GUI - System --> Licensing.
CAS checks for new engines and pattern files once every 5 minutes.