TextInput and TextArea now participate in the FocusManager's tab ring. For example, you can tab to an empty TextInput and start entering text.
The selectionAnchorPosition and selectionActivePosition properties of TextView, TextInput, and TextArea are now read-only, in accordance with the spec for these components. You must use the setSelection() method to set the selection.
Bugs: SDK-15894, SDK-15898, SDK-16331, SDK-16332, SDK-16414, SDK-16435, SDK-17224, SDK-17239
QA: Please remove any tests where you set selectionAnchorPosition or selectionActivePosition.