Here is the list for the Lync 2013/Skype for Business 2015 client updates: Version Release Date KB Article Download 15.0.5241.1000 May 5, 2020 KB4484289 32 bit 64 bit 15.0.5163.1000 August 6, 2019 KB4475564 32 bit 64 bit 15.0.5145.1001 June 4, 2019 KB4464593 32 bit 64 bit 15.0.5137.1000 May 7, 2019 KB4464547 32 bit 64 bit. Desktop clients are available for Microsoft Windows and Mac OS X systems. Note that some download pages still use the previous name, Microsoft Lync. Microsoft Windows. If you are using Microsoft Office Professional Plus 2013, you already have a Skype for Business application installed.
Before starting your install


Microsoft Lync 2013 Free Download
- Check to see if Lync is already on your computer. If you're running Office 2013 on your PC or a newer version of Office for Mac 2011, there's a good chance it's installed.
- Find out if your computer equipment is on ITS CorePlus support. If so, contact the Solution Center (294-4000 or solution@iastate.edu) to have Lync automatically pushed to your computer.
Getting started

Here are some tips on using Lync for instant messaging and more.

Windows
- Ensure that you have 'admin' rights to your computer. You'll need them for the install.
- From the 'start' icon, click on 'computer,' then 'map network drive' at the top of the window.
- Select a drive letter and, in the 'folder' input box, type 'software.iastate.edusoftwareLync' and click 'finish' button.
- Click through these directories: 'Lync' > 'Install' > 'PC' > 'Lync 2013 with SP1.'
- To install the software, click 'setup.'
- To burn a CD image of the software for a later install, go back up to 'Lync 2013 with SP1,' then click 'DVD image' and save the enclosed file.
Microsoft Lync Server 2013 Download
Mac
Download Lync Web App
- Ensure that you have 'admin' rights to your computer. You'll need them for the install.
- From your desktop, simultaneously click command+K to access the 'connect to server' window
- In the server address blank, type 'smb://software.iastate.edu/software/Lync.'
- The software server icon will appear on your desktop. Click through these directories: 'Lync' > 'Install' > 'Macintosh' > 'Lync 2011 for Mac' > 'files.'
- To install, drag 'lync_14.0.10_141024.dmg' to your desktop and click it.
- To burn a CD image of the software for a later install, go back up to 'Lync 2011 for Mac,' click 'CD image' and save the enclosed file.