These two browsers, different from the two versions of Internet Explorer that Windows 8.x users have access to currently, run independent from each other.
The new one, Spartan, would resemble Firefox and Google Chrome, while Internet Explorer would remain an option to ensure backwards compatibility.
Neither Internet Explorer 12 nor Spartan are available for public testing yet, but Microsoft has added a new feature to the most recent version of Internet Explorer 11 on Windows 10 which you can use to enable or change experimental flags.
Experimental flags are features that are not ready for prime time yet. If you use or have used Chrome, Firefox or Opera you know that they all offer access to flags that you can enable to activate upcoming features early.
If you are running Windows 10 you can access the flags in the following way:
A list of experimental features is displayed when you load the page. You find three listed on the page currently:
You need to restart the browser after you click on the apply changes button. All features can be reset on the same page by disabling them, clicking apply and restarting the browser.Advertisement
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