(The first was the Fall 1511 update.) Microsoft isn't keen on us using the old 'service/feature pack' nomenclature, either, but Windows 10 Anniversary Update is basically the equivalent of Windows 10 Feature Pack 2. This release is the second major feature update to Windows 10 since Microsoft initially introduced the operating system on July 29, 2015. (Hat tip to Ali Robertson for the idea of what to rename RTM.) The Windows 10 Anniversary Update version that Microsoft will begin rolling out to users on August 2 is going to be this code base plus updates that Microsoft makes between last week and next Monday.
However, Build 14393, which testers got last week and which I installed on a couple of devices last week, is effectively the 'Release to Mainstream' version of Windows 10 1607. Windows 11: Everything you need to know (ZDNet YouTube).The ultimate Windows 10 information hub: Everything you need in one place.Seven Windows 10 annoyances (and how to fix them).Windows 10 privacy guide: How to take control.Here's how you can still get a free Windows 10 upgrade.Windows 11: Microsoft deletes these Windows 10 features and apps.What Windows 11 means: We'll be stuck with millions of Windows 10 zombies.