Last Release of Software

Due to the device flash size limitations, the following FortiGate models’ last release of software will be FortiOS version 5.2.5. It is noted that these devices already have entered into their End-of-Life Cycle. Further details and exact dates can be found on the Fortinet CustomerSupport portal:

Affected Products:

• FortiGate FG-3016B
• FortiGate FG-3810A
• FortiGate FG-5001A SW & DW
• FortiCarrier FK-3810A
• FortiCarrier FK-5001A SW & DW

Special Notices

Compatibility with FortiOS versions

The following units have a new WiFi module built-in that is not compatible with FortiOS 5.2.1 and lower. It is recommended to use FortiOS 5.2.2 and later for these units.

Affected models

The following units have a memory compatibility issue with FortiOS 5.2.1 and lower. It is recommended to use FortiOS 5.2.2 and later for these units.

Affected models

Removed WANOPT, NETSCAN, FEXP features from USB-A

The following features have been removed from the FortiGate and FortiWiFi 80C, 80CM, and 81CM:

• WAN Optimization l Vulnerability scanning
• Using FortiExplorer on a smartphone to manage the device by connecting to the USB-A port

Router Prefix Sanity Check

Prior to FortiOS 5.2.4 under the config router prefix table, if there are any le and ge settings that have the same prefix length as the prefix, you may lose the prefix rule after upgrading to FortiOS 5.2.4 or later.