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In a move to put the nail in the coffin of the hardware menu button, Google has changed the code in KitKat which regulates the display of the overflow button (the three vertical dots shown in the image above).

Whereas previously the overflow buttons would be hidden on devices that feature a hardware menu key, such as the Samsung Galaxy S4, Google has decided to give OEMs a kick in the right direction by enabling the action overflow button permanently, regardless of the presence of a hardware menu button.

This is bound to increase the consistency of user experience, particularly across devices — users will be able to expect an on-screen overflow button regardless of the device they’re using, and thus make the transition between different devices in their upgrade cycle just that little bit easier.

Source: Reddit.
Via: Droid-Life.