A family of Microsoft word processing software products for creating web, email, and print documents.
OK, the info didn't come directly from MS. Maybe I misunderstood what you quoted in October 2013 in this forum:
<snip
>
Unfortunately, as you have discovered, text boundaries in Word 2013 are useless. This is due to the new layout engine used in Word 2013. It turns out that Word's developers had no idea that so many users depended on
text boundaries, which we have been told were kind of a mistake to begin with,
"a feature that was never supposed to be a feature," "a window into the internals of word" that should probably never have been exposed to users.
The feature "just draws a border around [Word's] internal drawing rectangles," and those have now changed with the switch to a hardware-accelerated display. So Word "isdoing precisely what it has always done (drawing borders around internal data structures). Unfortunately, this means that scenarios that used to work accidentally now don’t work the same way. There’s really no way to bring back the old functionality – it truly doesn’t exist."
</snip>