Microsoft have released a new build of Windows 10 for Windows Insiders on the dev channel (fast ring). The build has some UI changes, Alt-tab changes, new settings and more.

UPDATE: Here is my hands on video:

UI Changes

With this build there theme-aware tiles in the start menu. This removes the solid colours from the start menu tiles and gives it a transparent colour. If you have colour enabled can have colour hints on your tiles. This change is only rolling out for a small number of Windows Insiders.

Notification now have an icon and a close button:

ALT + TAB

ALT + TAB is changing with build and the new Microsoft Edge. You can now ALT + TAB between open tabs in Edge as well as system applications. You can adjust the setting in Settings > System > Multitasking.

Taskbar

For new setups Window there is a new out-of-the-box setting that enables customisation of the taskbar:

Settings

Settings has a new about page as Microsoft continue to replace control panel items:

Here are the other changes:

Fixes

We fixed an issue resulting in Insiders experiencing bug checks when connecting and interacting with an Xbox controller.

We’ve fixed an issue causing some games and applications to crash at launch or fail to install.

We fixed an issue resulting in Microsoft Edge not navigating to websites when WDAG was enabled on the last 2 flights.

We fixed an issue which was increasing log off time in recent builds.

We fixed an issue with the Chinese Pinyin IME where after setting your preferred IME toolbar orientation, you may not be able to change it again after rebooting your PC.

We fixed an issue causing Reset this PC to always show the error “There was a problem resetting this PC” when launched from Settings in the last few builds.

We fixed an issue resulting in some Bluetooth devices no longer showing their battery level in Settings in the last few builds.

We fixed an issue where Settings would crash if you went to Settings > Privacy > Microphone while a win32 app was recording audio.

We fixed an issue where if Sound Settings showed “no input devices found” in the input dropdown and you clicked it, then Settings would crash.

We fixed an issue where when adding a printer, the dialog might crash if you navigated through to the “Add a printer driver” dialog in recent builds.

We fixed a graphics related issue resulting in some users experiencing bugchecks.

Known issues

We’re working on a fix for an issue causing some systems to crash with a HYPERVISOR_ERROR bugcheck.

We’re looking into reports of the update process hanging for extended periods of time when attempting to install a new build.

We’re aware of an issue where Notepad might fail to reopen files which were automatically saved during a PC restart (if that option is enabled in Settings). Documents can be recovered from %localappdata%\Notepad.We’re investigating reports of the screen becoming dimmer after upgrading to the previous build.

We’re aware of an issue where Task Manager reports 0.00 GHz CPU usage in the Performance tab.

We’re investigating reports that when you press space while using the Korean IME in certain apps, the last character is deleted.

We’re working to fine tune the tile animations in Start to avoid flashes of color.

For Insiders with the new Alt+Tab experience mentioned above, please note that the setting under Settings > System > Multitasking to set Alt+Tab to “Open windows only” currently doesn’t work.