FAZ 5.6.4 compatible with FAC 5.3.1, other devices

I'm considering upgrading our FortiAnalyzer 200D to 5.6.4 and our FortiAuthenticator to 5.3.1 (from 5.2.2) and wanted to check with y'all about compatibility, as I won't be upgrading other devices for a while and I could only find certain information about what is compatible with what.  Devices are:

FortiAuthenticator 5.3.1 - FAZ release docs say it's compatible with 5.2.2 but don't list anything later

FortiSwitches: 3.6.6 - FAZ release docs say 3.6.5 is compatible, so hoping 3.6.6 is too...

FortiAPs: 5.4.4 - can't find compatibility info, but since managed by FortiGates, probably compatible?

FortiGates: 5.4.9

No FortiClients at the moment, so no issues there.

Could anybody clarify whether the above versions should all be compatible?

If there are compatibility documents I missed related to this I'd really appreciate links to them.

I've mostly looked at:

https://docs.fortinet.com/uploaded/files/4232/Security-Fabric-5.6.4-Upgrade%20Guide.pdf 

https://docs.fortinet.com/uploaded/files/2901/fortianalyzer-compatibility.pdf 

https://docs.fortinet.com/uploaded/files/4422/fortianalyzer-v5.6.4-release-notes.pdf

Thanks.