Official Name | Generation | Screen Size | CPU | Release Date | Latest iOS/iPadOS version | Status So this user tip is aimed at maintaining a list divided by sub line, that includes screen size, CPU, release year, discontinuation date and iOS / iPad OS versions they can run now. With the newest 11' and 12.9' iPad Pros released in April 2021, Apple now has released a total of 27 different iPads, and it's getting harder to keep them straight.