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wukalju2
New Member
March 28, 2026
Question

FortiAuthenticator 6.6.x > 8.0.x upgrade

  • March 28, 2026
  • 2 replies
  • 345 views

Hi everyone

We will soon be upgrading our FAC instance from 6.6.x to (probably) 8.0.2
Running a 2 node cluster, both are VMs.

From what I can see, it should be a direct upgrade path without any inbetween jumps.

I will read through the release notes, known issues etc, but can anyone who has performed this process comment on how it went? Any surprises or hidden 'foot-guns'?

2 replies

AEK
SuperUser
SuperUser
March 29, 2026

Hi Wuka

In addition to the release notes, you will find on this page some useful details in case you didn't already see it.

https://docs.fortinet.com/document/fortiauthenticator/8.0.2/administration-guide/122076

Hope it helps.

AEK
ggolubovic
Staff & Editor
Staff & Editor
May 17, 2026

Hi Wuka, 

In case if your FortiAuthenticators are virtual machines, create vm snapshot before upgrade.

Check following Fortinet KB for upgrade procedure:

 

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