This update resolves the following issues:

• When you sign in to Lync 2013 by using an Office 365 account, Lync 2013 prompts you for Open Authorization (OAuth) credentials.

  Note To resolve this issue, you must also install the following update KB2881001:

  2881001

  (http://support.microsoft.com/kb/2881001/ )

  September 9, 2014 update for Office 2013 (KB2881001)

  After you install updates KB2889860 and KB2881001, Lync 2013 will enable Active Directory Authentication Library Single Sign-On (ADAL SSO) in an Office 365 environment.

• 2881001

  (http://support.microsoft.com/kb/2881001/ )

  Bad password count is incremented when Lync 2013 VDI plug-in pairs with a Lync 2013 client

• 2992447

  (http://support.microsoft.com/kb/2992447/ )

  Lync 2013 crashes when a user switches shared desktop from full-screen view to actual size

• 2992448

  (http://support.microsoft.com/kb/2992448/ )

  Desktop sharing or application sharing issues during a conversation in Lync 2013

Additionally, this update resolves the Lync 2013 issues that are described in the following KB articles:

• 2881070

  (http://support.microsoft.com/kb/2881070/ )

  August 2014 update for Lync 2013 (KB2881070)

• 2881013

  (http://support.microsoft.com/kb/2881013/ )

  MS14-036: Description of the security update for Microsoft Lync 2013: June 10, 2014

• 2880980

  (http://support.microsoft.com/kb/2880980/ )

  Update 2880980 for Lync 2013: May 2014

• 2880474

  (http://support.microsoft.com/kb/2880474/ )

  Description of the Lync 2013 update: April 2014

• 2863908

  (http://support.microsoft.com/kb/2863908/ )

  Description of the Lync 2013 update 2863908: March, 2014

• 2817430

  (http://support.microsoft.com/kb/2817430/ )

  Description of Microsoft Office 2013 Service Pack 1 (SP1)

• 2825630

  (http://support.microsoft.com/kb/2825630/ )

  Description of the Lync 2013 update 15.0.4551.1005: November 7, 2013

• 2817465

  (http://support.microsoft.com/kb/2817465/ )

  MS13-054: Description of the security update for Lync 2013: July 9, 2013

• 2768004

  (http://support.microsoft.com/kb/2768004/ )

  Description of the Lync 2013 update 15.0.4481.1004: May 2013

• 2760556

  (http://support.microsoft.com/kb/2760556/ )

  Description of the Lync 2013 update 15.0.4481.1000: March 2013

• 2760512

  (http://support.microsoft.com/kb/2760512/ )

  Description of the Lync 2013 update: February 2013

Ahora toca actualizar en cuanto hayáis revisado los problemas que corrige, pero es importante prestarle atención a la de Lync Server 2013:

Se ha detectado un problema de seguridad en un producto de software de Microsoft Lync que podría afectar al sistema. Para proteger los sistemas, instale esta actualización de Microsoft. Para obtener una lista completa de los problemas que resuelve la actualización, consulte el artículo de Microsoft Knowledge Base asociado. Una vez instalada, es posible que tenga que reiniciar el sistema.

Espero que os sea de utilidad!