Microsoft has rolled out the January 2017 Cumulative Update for SharePoint Server 2016, bringing along a host of features from Feature Pack 1, with improvements, bug fixes, and stability enhancements.
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Microsoft has pushed out KB3103470 to Insiders, which has been identified as the "October Update for x64-based Systems", bringing improvements to the functionality of Windows 10.
Following Cumulative Update 3, Microsoft has issued a statement that it will offer a detailed explanation only for "significant" Windows 10 cumulative updates in the future.