What's actually happening is Microsoft is building a new browser, codenamed Spartan, which is not IE 12 -- at least according to a couple of sources of mine. Thomas Nigro, a Microsoft Student Partner lead and developer of the modern version of VLC, mentioned on Twitter earlier this month that he heard Microsoft was building a brand-new browser. Nigro said he heard talk of this during a December episode of the LiveTile podcast.
ZDNet's sources say Spartan is not IE 12; rather, it is a new light-weight browser. Windows 10 will reportedly ship with both Spartan and IE 11 and Spartan will also be available on mobile versions of the operating system.
The Spartan moniker is just a codename and could change before release. Users may catch a glimpse of it on January 21st when Microsoft plans to reveal additional Windows 10 features.
More details at the link below...