The update was a minor patch to fix some bugs in the 1.6 release in the richmond/hampton roads area in virginia(also all customers served out of those areas). I believe it was supposed to fix a bug with spanish being set as the default language randomly and a bug with the optical audio out.
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Any chance this fixed the "unable to locate dvr hub" issue?
Nope. That fix (along with the SD PQ fix) is still in testing.