Win10 system Build 14388 updated what features

Win10 Build 14388 is the latest version of win10 that Microsoft is pushing today. This version fixes some bugs in the past and has many very comprehensive updates. This new version has some new ones. The launch of the function, then here to organize the update of the relevant win10 Build 14388 for everyone, let's take a closer look.
win10 Build 14388 download address:
https://insider.windows.com/
win10 Build 14388 update and repair content

1, we will update the app store to 11606.1001.39 version Fixes a lot of bugs
2. Fixed a bug in the Microsoft Edge browser that sometimes cannot be popped up in the privacy mode.
Known problems
1. The recorder application sometimes does not appear in the call recording option. Prepare to repair by applying the update
2. Users of "Wallet" may need to enter the PIN code twice when paying on the lock screen.
3, Reminder: We have improved the backup mechanism of Win10 so that we can Reduce the backup space in OneDrive. When the user is downgraded to the 10586 version from the 14388 version, the start screen of the 14388 version backup will not be restored.

Win10PC 1st Anniversary Update Preview 14388 Update Content:
Updated with Fix content
1, we will update the app store to 11606.1001.39 version, fix many bugs
2, we fixed the bug that the narrator keyboard shortcut can not be used after the PC unlocks the login
3, we fix In the settings - time and language -Time and date interface, Narrator can't read the date of the bug
4, We fixed a TPM driver crash, which may cause the device blue screen
known issues
1, the last time Hyper-V firmware updates may affect the normal operation of Windows Server 2016 Technology Preview Edition 5 in Safe Boot Mode.
2. After installing this update in a non-US English environment, it may be possible to launch Developer Mode. I encountered a 0x80004005 error. In fact, your PC has developer mode enabled and you can use Visual Studio. To fix this, you need to go to Settings - System, click on Apps and Features, select Manage Optional Features, click Add Features, install developer mode installation package, restart PC, open the command prompt in administrator mode, type sc config debugregsvc start =auto