Windows users would have had to deal with the cumulative concept at some point -- when they migrated to Windows 10 -- but the change to the Windows 7 servicing rules put it front and center months or years earlier than many figured.
"This will have a huge impact," McMillan said. "[Users] are having to make choices they haven't had to make before."
Windows 10 cumulative updates have ballooned in size as code changes accrete. Version 1511's latest update was more than 20 times larger than its first update just 12 months ago.
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