The new Lync:Mac 2011 client replaces the previous Communicator for Mac client. Lync:Mac improves on many previous features and introduces some new ones as well, as shown in Table 23.1. Also shown is an overall comparison to the feature-complete Windows Lync client.
1 Source: http://mac2.microsoft.com/help/office/14/en-us/lyncdeploy/item/49da1cec-2998-4466-9c66-970e6f488b97?category=fb7c71bb-c9bd-4f45-873f-851be7af1489
Feature support is indicated by the following circles in the table:
Feature is supported
Feature is partially supported
Feature is not supported