Monday's preview followed the release of a broader-based preview of Office 2016 for Mac two weeks ago. 'However, through the course of the preview, customers should expect to see new features delivered through monthly updates.' Microsoft has said it will ship Office 2016 for Windows in the second half of 2015. 'This early build doesn't yet contain all the features we're planning to ship in the final product,' cautioned Kirk Koenigsbauer, who leads the Office 365 Client Apps and Services team, in a blog post.