Windows 10 Build 10125 is an unreleased and unleaked build of Windows 10 which includes a number of new changes and features over the last public preview build which is build 10122. Build 10125 includes new icons, improved customization to Start and a back button for tablet mode.
The back button for tablet mode has been seen in concept art and internal builds of Windows 10 for sometime, and today it has finally hit the fbl_impressive branch. It works much like you'd expect, being a universal back button for all apps.
Not only that, but you can finally pin things to the list area of the Start Menu. You can pin them by enabling them in the Settings app. Not only that but the Apps List now alerts you that there's a new app in the Apps List with a 'New!' indicator.
Finally, icons have been updated too. They look a lot nicer than previous, and are the same icons seen in a concept art released by Microsoft back at WinHEC.
What do you think of these new changes? Let us know in the comments below.