Update:

Cumulative Build update KB3176927 that brings Windows 10 Build 14393.5 to Insiders is now available for Slow and Release Preview Rings. You can read the changelog below and download ISO images / CAB files if you need to do so.

Microsoft has now pushed Cumulative Build update KB3176927 that brings Windows 10 Build 14393.5 to Insiders in Fast Ring. The new build bring some fixes for the original Anniversary update RTM Build 14393.

 Read the full changelog below. Read what major features and changes the Anniversary update is supposed to bring for everyone, click here.

Windows 10 Build 14393.5 Changelog:

We have released a Cumulative Update (KB3176927) to Windows 10 Insider Preview Build 14393 on PCs and Mobile devices which will bring the build number to 14393.5. This Cumulative Update includes a handful of fixes:
We have improved reliability and performance of Microsoft Edge with AdBlock and LastPass extensions enabled. These extensions should continue to work after installing other extension updates from the Store.
We fixed an issue causing battery to drain due to runaway CPU processes while a device is idle.

We also fixed a battery life issue due to the proximity sensor always running on some devices.
We fixed an issue causing Store apps to stop launching due to a licensing issue.
We have fixed an issue that results in Windows Updates being delayed on systems with Connected Standby.
We fixed an issue where the Korean IME would not have the correct composition on some custom TSF3 edit controls on PC.
We fixed an issue where you might not be able to type in text into Search or some Store apps without having to restart the process.
We have fixed an issue where keyboard input on some Windows tablet devices would not rotate to landscape normally.