We just reported about Windows 10 Build 14393 coming as the Anniversary update RTM Build. It may be out soon for Insiders.

Now, it seems Microsoft is already preparing a Zero-Day Patch (ZDP) for Anniversary update. This Zero-Day patch will come as cumulative update and will be ready by August 2 when Anniversary update will be out officially for everyone.

You can read about all the major changes that Windows 10 Anniversary update brings by clicking here.