Rumors emerged last week that Microsoft was done with developing and maintaining its own rendering engine and that the company would either move Edge to a Chromium-based core or create a new browser based on that. The rendering engine Microsoft has worked for years to ideal is getting the boot, and the company will spend the next year building a new version of Edge (the name stays) that will run on Apple's macOS as well as older versions of Windows. "As part of this, we intend to become a significant contributor to the Chromium project, in a way that can make not just Microsoft Edge - but other browsers as well - better on both PCs and other devices".
Microsoft says a preview build of the new Chromium-based Edge will be available "in early 2019", but was not quite ready to share an exact release date or timetable.
Belfiore clarified that Edge's shift to the Chromium platform mostly concerns the desktop version of the Edge browser. Even though Edge was the most standards compliant browser Microsoft ever shipped, that still was not enough for a flawless web experience on every site.
The company also made it clear that they want to move ahead with the browser and now since it's all open source other operating systems to get Microsoft Edge as well.
Microsoft Edge is getting the nearly same fate of Explorer browser though the name "Edge" can continue in the further developed versions.
Unknown was whether Microsoft would keep the Edge name or give the browser a new name and whether the user interface between Edge and Anaheim would differ.
Microsoft's first tasks in switching to Chromium will include porting work to ensure Chromium support for Arm64, adding Microsoft UI Automation (UIA) interfaces to improve accessibility on Chromium, improving desktop touch for modern Windows devices, and patterning with the Chromium security team. This will help Web developers easily test their new projects, without making any tweaks to make them compatible with the Edge browser. The company has famously removed a Chrome installer from the Microsoft Store and continuously provided pop-ups and blockers to try and sway users from ever installing Chrome on their Windows 10 machine.
Microsoft decided with this release that they'd be sending Edge to Apple computers, too.
Microsoft is announcing big changes for the default browser in Windows 10 today.
Microsoft's announcement that it was shifting to the Chromium platform wasn't entirely a surprise as the notion had been floated earlier this week in this Windows Central story, which cited unnamed sources. The moving to a Chromium-base changes that and that is a good thing.
Recently, Apple decided to make a series of changes with the macOS, while Microsoft has planned to take their Internet browser to more operating systems.