Supported upgrade paths

To upgrade to FortiADC 7.6.5, you must proceed incrementally through each major version branch until you reach the target version. This ensures compatibility and system stability.

For example, to upgrade from 7.4.2 to 7.6.5, follow this path:

7.4.2 → 7.4.x → 7.6.2 → 7.6.5

(Where "x" refers to the latest patch version in the branch.)

Important: Disk Expansion Requirement in 7.6.2

If you are upgrading from 7.6.1 or earlier and intend to upgrade to 7.6.3 or later, you must first upgrade to 7.6.2. This is required due to the disk expansion mechanism introduced in FortiADC 7.6.2.

Skipping 7.6.2 may result in system issues or failed upgrades due to incompatible disk layout changes. For details, see Data Partition Expansion 7.6.2.

7.6.2 to 7.6.3/7.6.4

Direct upgrade via the web GUI or the Console.

7.4.x to 7.6.0/7.6.1/7.6.2

Direct upgrade via the web GUI or the Console.

7.2.x to 7.4.x

Direct upgrade via the web GUI or the Console.

7.1.x to 7.2.x

Direct upgrade via the web GUI or the Console.

7.0.x to 7.1.x

Direct upgrade via the web GUI or the Console.

6.2.x to 7.0.x

Direct upgrade via the web GUI or the Console.

6.1.x to 6.2.x

Direct upgrade via the web GUI or the Console.

6.0.x to 6.1.x

Direct upgrade via the web GUI or the Console.

5.4.x to 6.0.x

Direct upgrade via the web GUI or the Console.

5.3.x to 5.4.x

Direct upgrade via the web GUI or the Console.

5.2.x to 5.3.x

Direct upgrade via the web GUI or the Console.

For more information on upgrading from versions earlier than 5.2.x, please see the Upgrade Instructions document for that version.