upgrading of Forti Analyzer to 6.xx

[kinmun]

can i upgrade my forti analyzer VA to version 6.2 when my fortiOS is stilla t 5.4x version ?

will it make any difference 

[abelio]

Hello

you could upgrade your FAZ VM to any firmware you want to try, but it's important taking care of compatibility in each stage.

There's a doc on line https://docs.fortinet.com/document/fortianalyzer/6.4.0/compatibility-with-fortios

 Indeed, FAZ running 6.2 is more interesting than earlier versions