Request update for "preferredFocusEnvironments"

Hi there,

Big fan of the book, however Apple has deprecated preferredFocusedView as of tvos 10.0 and now requires we use preferredFocusEnvironments instead.

However, all the book covers is preferredFocusedView.

So I’d like to make a formal / informal request that the book be updated to show equivalent uses of preferredFocusEnvironments in addition to preferredFocusedView already presented in the book.

Thanks in advance.

Thanks for letting us know! This will be looked at in the update for tvOS 11 / Xcode 9.