I purchased an M4 iPad Pro and it arrived today. I went to set it up from my previous iPad Pro but it is running iPadOS 18, and 17.7 is the highest for the M4 currently. I updated on the 17th I think (a day or two after 18 came out) and wondering if I should wipe the new iPad and start again and try using a 17.x backup, or set up as a new device.
I think there were three or four back ups available from my pro. I ended up using the 18.1 beta and then doing a restore. I forgot i can do a back up to my MacBook. I will do one of those tomorrow.