With Windows 10, Microsoft shook up the long-standing Windows patching model.
Instead of producing individual hotfixes for each security flaw and infrequent updates to address non-security issues, Windows 10 has two monthly packages.
There’s a Security Update—a single update that contains all of a given month’s security fixes—and a Cumulative Update that contains all of the security and non-security fixes for a given version of Windows 10.
Microsoft has also retroactively applied this updating approach to Windows 7 and 8.1; those operating systems also have a third package containing only the Internet Explorer security fixes.
With the Creators Update, Microsoft is now adding another monthly package.
Starting with Windows 10 1703 only, the company will also offer a cumulative non-security update.
This will contain all the non-security fixes released for a given version.
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