It’s already been a year since Microsoft launched Windows 10,and we have had a couple of updates since release. The biggest update yet though is the Windows 10 Anniversary Update, which was codenamed Redstone throughout its development. It’s the first major department from the launch codebase and with it Microsoft has added a lot of new features, or polished some of the interface,and has overall if a kind update to those on Windows 10.
Source: anandtech.com