December 2014 Cumulative Update 5.0.8308.857 for Lync Server 2013 (Front End Server and Edge Server)

To install the cumulative update for Lync Server 2013, use one of the following methods:

Method 1: Cumulative Server Update Installer

The Cumulative Server Update Installer applies all updates for the appropriate server role in one operation. To use the Cumulative Server Update Installer, follow these steps:

Note If User Account Control (UAC) is turned on, you must start the Cumulative Server Update Installer by using elevated permissions to make sure that all updates are installed correctly.

1. Download the Cumulative Server Update Installer.
2. Run the Cumulative Server Update Installer by using the user interface (UI) or by using a command line.
   
   Note When you click Install Updates, the UI indicates which updates are installed.
   
   To run the Cumulative Server Update Installer, run the following command:

   LyncServerUpdateInstaller.exe 

   Notes The following text describes parameters that you can use together with the LyncServerUpdateInstaller.exe command:
   • The /silentmode switch applies all applicable updates in the background.
   • The /silentmode /forcereboot switch applies all applicable updates in the background. Additionally, the switch automatically restarts the server at the end of the installation process if this is necessary.
   • The /extractall switch extracts the updates from the installer and saves the updates in a subfolder that is named "Extracted." The subfolder is in the folder in which you ran the command.

After you run the Cumulative Server Update Installer, you must update all the applicable back-end servers. Check out how to update the back-end servers.

Method 2: Microsoft Update

The update is also available from the Microsoft Update website.

Note After you install this update by using Microsoft Update, you must update the databases on the back-end servers. Check out how to update the databases on the back-end servers.

Prerequisites

There are no prerequisites for installing this cumulative update.

Registry information

To use one of the cumulative updates in this package, you do not have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this cumulative update.

Update replacement information

This cumulative update replaces the November 2014 cumulative update for Lync Server 2013 (Front End Server and Edge Server).

Update package installation information

To apply this cumulative update, run Server.msp on computers that are running the following server role:

• Lync Server 2013 - Standard Edition Server
• Lync Server 2013 - Enterprise Edition - Front End Server
• Lync Server 2013 - Edge Server

Removal information

To remove this cumulative update, use the Add or Remove Programs item in Control Panel.

When you install the update, insert the source CD or provide the path where the source files can be found if you are prompted.