Microsoft has released the newest version of Office. The biggest addition is real-time collaborative editing, much like Google Docs, plus built-in integration with Skype for Business.
If you're already an Office 365 subscriber, you can download the new version now. Otherwise, you'll need to sign up here. The company has also announced that with this new version, Microsoft plans to release new updates every few months, rather than every few years. The new Office is available for Windows and Mac users.
The new Office is here [Microsoft Office Blog]