Since the release of our Skype for Business on Mac client back in October 2016, we have received questions from customers about ongoing early access to our latest builds. A file named InstallMacOSX.dmg will download to your Mac. If you still need OS X Yosemite, use this link: Download OS X Yosemite. When I try to create an online meeting I get 'The Outlook and Skype for Business (Lync) user accounts do. This is with both Skype and Outlook open. Calendar status does not automatically update in Skype for Business for Mac. I am using Skype for Business for Mac 16.7.175 with Outlook 2016 for Mac 15.34 (170515). For previous versions of Skype for Business, only those that have extended support may continue to work with Microsoft 365 or Office 365, although with reduced functionality.
Microsoft 365 and Office 365 work with any version of Skype for Business that is in mainstream support, which includes the latest version of Skype for Business 2016.