Internet Explorer's new forked rendering engine is included in Windows 10 Technical Preview build 9879, the engine is Microsoft's attempt to break away from legacy features.
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The IE dev team has reached out to users via Twitter asking for feedback for the next major update of IE in regards to the 'F12 tools" (as they call it) and have already shown off some improvements.
Microsoft is working on another large update to Internet Explorer - this time around, the user interface is getting a large overhaul, and there are some exciting new features on the way too.
Microsoft has launched Internet Explorer Developer Channel, a beta version of IE that bundles together upcoming features. This is where IE's upcoming changes will be made public for the first time.
A response from the IE team says that the next version of Internet Explorer will come with a redesigned interface. It's not clear if this extends to the desktop browser or is limited to the Modern IE.