https://wccftech.com/windows-10-kb4346877-released/

Microsoft will stop supporting Windows 10 Anniversary Update later this year. However, until then it will continue to deliver regular security updates to all the systems that haven’t been upgraded to the latest OS versions. Do note that version 1607 has already reached the end of service for Windows 10 Home and Pro editions; updates are only being delivered to Enterprise and Windows 10 Education editions.

The Redmond software maker has released a plethora of security patches to different versions of Windows 10 in July. The company has today started to deliver its fourth cumulative update for Windows 10 Anniversary Update version 1607 for the month of July. The update bumps up the build number to 14393.2396 and carries a small changelog fixing an issue introduced by an earlier July update.