According to official announcement from Microsoft Support KB 2919355, Microsoft will released Windows 8.1 Update 1 to public on 8th April 2014. Windows 8.1 Update 1 will be offered for free via Windows Update instead of Windows Store.
Windows 8.1 Update KB2919355 [AKA Windows 8.1 Update 1] is a 400 to 700 MB download with prerequisites include KB2919442, all future [i.e., released 13 May 2014 & later] security and nonsecurity updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require KB2919355 to be installed.
Windows 8.1 Update KB2919355 [AKA Windows 8.1 Update 1] will delivers collection of refinements designed to give people a more familiar and convenient experience across touch, keyboard and mouse inputs. Windows 8.1 Update 1 also brings improvements for business customers, really accelerates opportunity for developers, and enables device makers to offer lower cost devices.
Interesting features present in Windows 8.1 Update 1 as below:
- Power and Search Buttons on Start Screen
- Direct Boot into Desktop
- Pin Metro Apps to Taskbar
- Titlebar with Minimize and Close Buttons in Metro Apps
- Right-Click Context Menu on Start Screen Tiles
- Internet Explorer 11 Improvements
More information at below link:
Win8.1 Update KB2919355 [AKA Win8.1 Update 1] to be offered 08 April 2014