If you’re testing out Windows 10, you will get the first crack at the new Project Spartan browser today. Project Spartan will be the default fresh Windows 10 installs in the same way that Internet Explorer has been the default browser for decades.
In this go around, Microsoft is looking to break the routine of users instantly jumping to either Firefox or Chrome after installing Windows by offering a feel and experience that similar to their competitors. The test run comes as part of the 10049 build update to Windows 10, so those already testing out the OS would’ve gotten the update already.
For those looking for the other features in Windows 10—such as full Cortana functionality—might have to wait until this summer. That isn’t to say more Cortana functionality won’t be available as updates to test builds are released. As for Project Spartan functions, there’s the ability to write/type on pages and share comments on social media and email. OneDrive and OneNote are options for sharing comments as well.
For those who haven’t gotten the chance to preview Windows 10 yet, you can sign up for Windows Insider.