Last week, Microsoft started rolling out the first preview build of Microsoft Office version 2108 to the Office Insiders who are in the Windows Beta Channel. That build (14301.20004) added a new feature to the Outlook client allowing you to turn off suggested replies if you are not happy with it.
This week the company released a new build (14312.20008) for Microsoft Office version 2108 that adds another new feature to the Outlook client and a set of few fixes for Microsoft Word and Microsoft Excel.