FAS6280 upgrade to 9.2

Hello Experts,

   We have a FAS6280 running Ontap Version 9.1 on it (repurposed Cdot Cluster). Can we upgrade it to 9.2? I have checked on NetApp site but looks like OnTap 9.2 is not available for FAS6000 series.  Did anyone upgrade FAS6280 to 9.2 or any thoughts on it? 

Thanks.