Upgrade Firmware Unleashed for mix R550 and R320 : latest version supported for R320 ?

[ChristianLSM]

Hi all, 
Have Unleashed with 2xR550 and 5xR320, change the master R320 for a R550, so I can upgrade to 
200.18.7.101.244
But when I start upgrade, have a message : 
Under the APs: [R320 * 5] will no longer be supported in the target version [200.18.7.101.244]. These APs will not be able to join Unleashed Master if you continue to update the system. Are you sure you want to continue?
So I don't.... can you please tell me what is the latest version both compatible ?
Thanks in advance 

[ms264556 · Accepted solution]

I have a tool which will tell you the latest version compatible with all your APs: https://ms264556.net/ruckus/UnleashedFirmwareGuide?q=R320+R550

You can install the latest 200.15 release, currently 200.15.6.212.27

[ChristianLSM]

Thanks for your tool, looks great ! 
Thanks for the prompt reply ! 
Have a nice day !
Regards, 
Christian