The Webex Meetings desktop app and Webex Productivity Tools are provided in two separate packages. For information on the desktop app, see Cisco Webex Meetings Desktop App
The final release for Productivity Tools for Mac will be 41.5 as Microsoft plans to block injection-based plugins on Mac Outlook beginning in mid-May. Mac based Outlook customers who wish to use Webex should move to the Cisco Webex Scheduler.
Productivity Tools no longer supports integrations with IBM Lotus Notes, IBM Sametime, Microsoft Lync, Internet Explorer, and Skype for Business from 41.2.