I can't get my 6 year old MacPro to upgrade from Monterey to Ventura OS
My MacPro is now 6 years old and the latest OS is Monterey. I have auto-updates but, even with a manual update, I can't get Ventura OS to install. I've reduce a number of files and folders, emptied trash, etc., to increase space but that has made no difference. Any advice? Thanks.
iMac 21.5″, macOS 10.15