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Surely you've heard the question about whether or not a tree falling in the woods makes a sound if no one is there to here it; what we would like to know is whether a software update without a changelist is still a software update. What brings this up is the Asus built Google Nexus 7 (2013) which received an update to build number JSS15R just a couple of weeks after being updated to JSS15Q...
Source: http://www.phonearena.com/news/Update-to-Google-Nexus-7-2013-keeps-your-sister-away-from-your-games_id47567