Amaranten--Service

Important:
1. Version upgrade is divided into two kinds: one is the upgrade for main-version, such as, upgrade
    from V8.40.xx to V8.50.xx, and this kind of upgrade is decided by the license valid time; another is
    the upgrade for sub-version, such as, upgrade from V8.40.01 to V8.40.04, and this kind of upgrade
    can be done directly without checking license.
2. If not sure if the license is valid for upgrading the core, please don't upgrade, otherwise the firewall
    will stop working after finding out the license is expired.
3. The version upgrade may cause some subtle change for some functions, so please consult
    Amaranten engineer before upgrade and let them make it. Otherwise, for any damage from upgrade,
    Amaranten will not take any responsibility.