Those with Office 365 subscriptions are able to get their hands on the product first. The new suite, the successor to Office 2011 for Mac, has been in public preview since March 2015.
Office 2016 for Mac - which includes new versions of Word, Excel, PowerPoint, Outlook and OneNote - is available in 139 countries and 16 languages starting today. On July 9, Microsoft is making the new version of its Office suite for Mac generally available, first for Office 365 subscribers.