Transferring to new Mac
I have a 2013 iMac running High Sierra (10.13.6) but it's slowing down and I'm beginning to get antsy about the non solid-state hard drive, so I ordered a new iMac, which is being shipped this week. I couldn't tell from the ordering information what OS will be installed, but I'm sure it will be a later version than my old machine. I'm hoping to do a migration from my Time Machine backup disk, but will the difference in operating systems complicate that process?
iMac 27″, macOS 10.13