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LadyKate - I think the response would be - if you want to see more detail of changes, sign up for the Insider Program.
I defer upgrades until the Enterprise edition is released. That's my policy these days - if it's not fit for business then it's not fit for me. I upgraded to 1607 last week, I noticed some cosmetic changes here and there, and they fixed a WU bug that'd been affecting me since they broke something in November's Office Updates.
Try this registry hack ==>>
[HTG] Add Color to Inactive Title Bars in Windows 10 It's also available in the WinAero Tweaker gadget. And it works (for now at least) :
BR