This Mac OSX client supports Lync 2013, Lync 2010, Skype for Business, and 365. It enables voice and conference calls, meetings, chat, group chat, and persistent chat rooms. It is more reliable than standard Lync for Mac 2011 and has been tested on Mavericks, Yosemite, and El Capitan.

Compared to the standard MS Lync for Mac 2011, this client is much more reliable, stable, and user-friendly. It can be tested on a wide range of systems including Mavericks, Yosemite, and El Capitan.
The focus of this software is on basic functions that are most commonly used in a work environment. This client provides an excellent user experience and is easy to navigate.
One unique feature of this software is that we can test and perfect it in order to meet the specific needs of your company's OSX versions and environment. In addition, we offer server upgrades and maintenance services to ensure that this client, as well as all Lync/Skype for Business clients, run smoothly.
Overall, I highly recommend the Mac OSX client for Lync 2013, Lync 2010, Skype for Business, and 365. It provides all of the necessary features for a productive work environment and is backed up by excellent support services.
Version 2.0.452:
Fixed issues:
MAC-75 Plist version number