Hi Team,
I need to upgrade my current Lync 2013 to Skype for business and as per information i got an update released by Microsoft KB2889923 ... this is used to upgrade Lync 2013 to skype for business.......but in case of Office 365 this update dosent seems to work...... so i wanted to know if there is any other update or package or any other way to upgrade office 365 Lync.