Both iOS 13.4 and iPadOS 13.4 are most definitely coming tomorrow Tuesday around 1 PM Eastern time/10 AM Pacific time. Apple made unexpected surprise with announcement about mouse and trackpad support coming to all iPad which is part of the big update. It’s not the only news, they also unveiled new Magic Keyboard with trackpad to all iPad models! Magic Mouse 2, Trackpad 2, or third-party Bluetooth keyboard and mice will work well once you get iPadOS 13.4 software on your iPad very soon.