And 3D Touch on the virtual keyboard, which used to turn it into a trackpad with which you could move the text cursor freely and 3D Touch again to select text has been replaced with "Haptic Touch" which lets you long-touch the space bar to move the cursor but offers no way to select text so you have to revert to the old "touch the word you want to edit" UI.
Now the trackpad is enabled by using two fingers on the keybard. To select, you can long-touch where you want the selection to start, and select more by using this trackpad gesture.
At least that's how it works on my iPad Air 2, which is a bit outdated, but has the latest iOS.
