Microsoft has released CU4 for Lync 2010. This update package fixes the issues that are previously documented in the following Microsoft Knowledge Base (KB) articles:

• 2629913 (http://support.microsoft.com/kb/2629913/ ) IMs are still archived in Outlook after the behavior is disabled by policies in Lync 2010

• 2637591 (http://support.microsoft.com/kb/2637591/ ) No IM notification is sent to the notification URI in Lync 2010

• 2607289 (http://support.microsoft.com/kb/2607289 / ) The language of a Lync 2010 client resets to English

• 2614343 (http://support.microsoft.com/kb/2614343 / ) An update is available to enable RTAudio narrowband between Lync 2010 clients and Mediation servers in Lync Server 2010

• 2623817 (http://support.microsoft.com/kb/2623817 / ) IMs are still archived in Outlook after the behavior is disabled by policies in Lync 2010

• 2623814 (http://support.microsoft.com/kb/2623814 / ) The application-sharing feature does not work in a meeting which contains an anonymous user in Lync 2010

• 2623823 (http://support.microsoft.com/kb/2623823 / ) An update is available to enable the presence information on voice and video capabilities in Lync 2010

• 2623821 (http://support.microsoft.com/kb/2623821 / ) A blank windows might display when Lync 2010 starts

• 2629910 (http://support.microsoft.com/kb/2629910 / ) Inaccurate warning message during an instant message conversation in Lync 2010

• 2623818 (http://support.microsoft.com/kb/2623818 / ) The IM history is not stored in the default Exchange mailbox when you use Lync 2010

• 2639837 (http://support.microsoft.com/kb/2639837/ ) "An error occurred during the online meeting." notification when a user tries to join an online meeting that is created in Outlook by using Lync 2010

• 2623813 (http://support.microsoft.com/kb/2623813/ ) An update is available to apply certain changes on the "Set Location" feature in Lync 2010

The KB for Lync 2010 CU4 can be found here.

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