Office 2010 build 4302

Microsoft Office 2010 build 4302 is a Beta 1 build of Microsoft Office 2010, which was leaked by WZor.net on 12 July 2009.

New features and changes

 * The Office button has been replaced with the File tab.
 * Ribbon tabs are now displayed in the backstage view.
 * Dedicated buttons for the info and application pages have been added to the backstage view.
 * The application page in the backstage view has been reorganized and includes new options.
 * The extended title-bar transparency now applies to maximized windows.
 * The blue and black color schemes can be enabled again.
 * Several placeholder and low resolution icons have been replaced.
 * InfoPath Editor has been renamed to InfoPath Filler.

Bugs and quirks
The File tab is displayed as "File 'F" in the ribbon.