Below is a list of updates and their corresponding version numbers:
Lync client 2010
| CU # | Description |
| CU1 | http://support.microsoft.com/?kbid=2467763 Description of the cumulative update package for Lync 2010: January 2011 (Version: 4.0.7577.108) |
| CU2 | http://support.microsoft.com/?kbid=2496325 Description of the cumulative update package for Lync 2010: April 2011 (Version: 4.0.7577.253) |
| CU3 | http://support.microsoft.com/kb/2551268 Description of the cumulative update package for Lync 2010: May 2011 (Version: 4.0.7577.280) |
| CU4 | http://support.microsoft.com/?kbid=2571543 Description of the cumulative update package for Lync 2010: July 2011 (Version: 4.0.7577.314) |
| CU5 | http://support.microsoft.com/?kbid=2514982 Description of the cumulative update package for Lync 2010: November 2011 (Version: 4.0.7577.4051) |
| CU6 | http://support.microsoft.com/kb/2670326 Description of the cumulative update package for Lync 2010: February 2012 (Version: 4.0.7577.4072) |
| CU7 | http://support.microsoft.com/kb/2701664 Description of the cumulative update package for Lync 2010: June 2012 (Version: 4.0.7577.4103) |
| CU8 | http://support.microsoft.com/kb/2737155 Description of the cumulative update package for Lync 2010: October 2012 (Version: 4.0.7577.4356) |
| CU9 | http://support.microsoft.com/kb/2791382 Description of the cumulative update package for Lync 2010: March 2013 (Version: 4.0.7577.4378) |
| CU10 | http://support.microsoft.com/kb/2815347 Description of the cumulative update package for Lync 2010: April 2013 (Version: 4.0.7577.4384) |
| CU11 | http://support.microsoft.com/kb/2842627 Description of the cumulative update package for Lync 2010: July 2013 (Version: 4.0.7577.4398) |
| CU12 | http://support.microsoft.com/kb/2884632 Description of the cumulative update package for Lync 2010: October 2013 (Version: 4.0.7577.4409) |
Lync Server 2010
| CU# | Description |
| CU1 | http://support.microsoft.com/kb/2467775 Description of the cumulative update for Lync Server 2010, Core Components: January 2011 (Version: 4.0.7577.108) |
| CU2 | http://support.microsoft.com/kb/2500442 Description of the cumulative update for Lync Server 2010: April 2011 (Version: 4.0.7577.137) |
| CU3 | http://support.microsoft.com/kb/2571546 Description of the cumulative update for Lync Server 2010: July 2011 (Version: 4.0.7577.166) |
| CU4 | http://support.microsoft.com/kb/2514980 Description of the cumulative update for Lync Server 2010: November 2011 (Version: 4.0.7577.183) |
| CU5 | http://support.microsoft.com/kb/2670352 Description of the cumulative update for Lync Server 2010: February 2012 (Version: 4.0.7577.190) |
| CU6 | http://support.microsoft.com/kb/2701585 Description of the cumulative update for Lync Server 2010: June 2012 (Version: 4.0.7577.199) |
| CU7 | http://support.microsoft.com/kb/2737915 Description of the cumulative update for Lync Server 2010: October 2012 (Version: 4.0.7577.203) |
| CU8 | http://support.microsoft.com/kb/2791381 Description of the cumulative update for Lync Server 2010: March 2013 (Version: 4.0.7577.216) |
| CU9 | http://support.microsoft.com/kb/2860700 Description of the cumulative update for Lync Server 2010: July 2013 (Version: 4.0.7577.217) |
| CU10 | http://support.microsoft.com/kb/2889610 Description of the cumulative update for Lync Server 2010: October 2013 (Version: 4.0.7577.223) |
Lync client 2013
| CU# | Description |
| CU1 | http://support.microsoft.com/kb/2812461 Description of the Lync 2013 updates 15.0.4454.1509: February 2013 |
| CU2 | http://support.microsoft.com/kb/2817465 MS13-054: Description of the security update for Lync 2013: July 9, 2013 (Version: 15.0.4517.1004) |
| CU3 | http://support.microsoft.com/kb/2825630 Description of the Lync 2013 update: September 20, 2013 (Version: 15.0.4535.1002) |
| CU4 | http://support.microsoft.com/kb/2825630 Description of the Lync 2013 update 15.0.4551.1005: November 7, 2013 |
Lync Server 2013
| CU# | Description |
| CU1 | http://support.microsoft.com/kb/2781547 Description of the cumulative update 5.0.8308.291 for Lync Server 2013: February 2013 |
| CU2 | http://support.microsoft.com/kb/2819565 Description of the cumulative update 5.0.8308.420 for Lync Server 2013: July 2013 |
| CU3 | http://support.microsoft.com/kb/2881684 Description of the cumulative update 5.0.8308.556 for Lync Server 2013 (Front End Server and Edge Server) : October 2013 |
