FortiAP 6.4.6 supports upgrading from FortiAP version 6.4.3 and later.
FortiAP 6.4.6 supports downgrading to FortiAP version 6.4.3 and later.
To get the MD5 checksum code for a Fortinet firmware image, perform the following steps:
- Go to the Fortinet Support website.
- Log in to your account. If you do not have an account, create one and then log in.
- From the top banner, select Download > Firmware Image Checksums.
- Enter the image file name, including the extension. For example, FAP_221C-v6-build0030-FORTINET.out.
- Click Get Checksum Code.
To view all previous FortiAP versions, build numbers, and their supported upgrade paths, see the Fortinet Documentation website.