We have a small cluster with a couple of AP-303H and an IAP-205 (we plan on retiring it soon).
Currently they are running version 6.5.4.12 which is when they stopped being able to auto upgrade. My understanding is that because the 303H would try to get version 8x which is not supported by the 205. I see the latest supported version for the 205 is 6.5.4.17.
So what's the best approach to upgrade the cluster? Which public URLs should I use to point them via the GUI, or should I do this command line?
Also, would it best to remove the 205 from the cluster and keep it alone and upgrade the rest to 8x, or keep them all at 6.5?
TIA.