Lync 2010 Client Version Lists

For quick reference, the following table lists the versions, release month, year, and a link to the KB article for all Lync 2010 updates released through March 2013.

Version	Release Month, Year	Link to KB Article
4.0.7577.0	RTM version	NA
4.0.7577.0108	January, 2011	http://support.microsoft.com/?kbid=2467763
4.0.4577.0253	April, 2011	http://support.microsoft.com/?kbid=2496325
4.0.7577.0314	July, 2011	http://support.microsoft.com/?kbid=2571543
4.0.7577.0330	September, 2011	http://support.microsoft.com/?kbid=2624907
4.0.7577.0336	October, 2011	http://support.microsoft.com/?kbid=2630294
4.0.7577.4051	November, 2011	http://support.microsoft.com/?kbid=2514982
4.0.7577.4053	November, 2011	http://support.microsoft.com/?kbid=2647415
4.0.7577.4061	January, 2012	http://support.microsoft.com/kb/2670498
4.0.7577.4064	February, 2012	http://support.microsoft.com/kb/2669896
4.0.7577.4072	February, 2012	http://support.microsoft.com/kb/2670326
4.0.7577.4087	March, 2012	http://support.microsoft.com/kb/2684739
4.0.7577.4098	June, 2012	http://support.microsoft.com/kb/2693282
4.0.7577.4103	June, 2012	http://support.microsoft.com/kb/2701664
4.0.7577.4109	October, 2012	http://support.microsoft.com/kb/2726382
4.0.7577.4356	October, 2012	http://support.microsoft.com/kb/2737155
4.0.7577.4374	January, 2013	http://support.microsoft.com/kb/2793351
4.0.7577.4378	March, 2013	http://support.microsoft.com/kb/2791382
4.0.7577.4384	April, 2013	http://support.microsoft.com/kb/2815347