While Microsoft has not released a new build of Windows 10 to Insiders in some time, the company still continues its work to improve the platform in time for its release this summer. A newly leaked Windows 10 Preview build 10114 shows Microsoft's progress over the previous builds.
The leaked build, which is demonstrated below, comes with an updated Start Menu, where the File Explorer and Settings selections moved to the bottom of the apps list. There is also a new Start tab in Settings and the Insider Hub has received a major update. The option to turn the Start menu into the full screen has been removed from the top right corner, although users can still make it full screen by going into the personalization tab.
The Windows Insider app has also received a big UI update, as shown in the video. The app now comes with a hamburger menu on the left, with access to announcements, alerts, and Insider profile. On the right you got your profile with info like your name, profile picture, how long you have been a member of the program, your feedback activity, achievements, which build of Windows 10 is running and more. The ‘Dark’ theme can also be enabled on this build from the Settings.
source - WinBeta | NeoWin