More screenshots from Windows 10 Build 10125 have been posted online and they reveal many upcoming changes. You can see new desktop icons, all apps can be now accessed faster, new design for jump list, apps indicator on hamburger menu. Gabe Aul from Microsoft has confirmed that this build is still under testing.
@Alovchin91 10125 is still going through internal rings.
— Gabriel Aul (@GabeAul) May 22, 2015