The revamp — due later this year — will fundamentally change the look of the operating systems and make Apple’s various software platforms more consistent, according to people familiar with the effort.

Apple AAPL.O is preparing a major overhaul of its software, due later this year, which will change the look of the operating systems and the interface of the iPhone, iPad and Mac, Bloomberg News reported on Monday,

Apple Inc. is preparing one of the most dramatic software overhauls in the company’s history, aiming to transform the interface of the iPhone, iPad and Mac for a new generation of users. This work will change the look and feel of products.