Skype for Business compatibility with Office 365 and your on-premises environment depends on the system requirements for your deployment: For more information about installing Office updates, see Install Office updates.To find out what version of Skype for Business you're using, see What version of Skype for Business do I have?.For the latest mobile client updates, go to the app store for your mobile client (iTunes, Google Play, or Microsoft Store) to view details and install updates.The information in this article doesn't apply to Office 365 versions of Skype for Business, such as Skype for Business included with Office 365 ProPlus.For example, if you installed a volume licensed version of Skype for Business, such as Skype for Business included with Office Professional Plus 2016. The information in this article only applies to perpetual versions of Skype for Business that use the Windows Installer (MSI) installation technology.
Use the links on this page to get more information about and download the most recent updates for the perpetual versions of Skype for Business 2016, Skype for Business 2015, and Lync 2013 clients. Microsoft Lync 2010 (64-Bit) provides a single interface that unites voice communications, IM, and audio, video, and Web conferencing into a richer, more contextual offering.->