Руководство По Установке для Cisco Cisco ASA 5525-X Adaptive Security Appliance - No Payload Encryption

Cisco Systems, Inc.
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This section describes how to upgrade to the latest version.

See the following table for the upgrade path for your version.

There are no special requirements for Zero Downtime Upgrades for failover.

Depending on your current version, you might experience one or more configuration migrations when 
you upgrade. For example, when upgrading from 8.0 to 8.3, you will experience all of these migrations:

8.2—See the 

8.3—See the 

8.2(x) and earlier

8.3(1) or later