Upgrade all your relays before you start to upgrade agents (see Best practices for upgrades for details.) There are two ways to upgrade a relay, as described below.  
Upgrade a relay starting from the manager
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Log in to Deep Security Manager.
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Identify your Deep Security Relays. Either:- 
Go to Computers . In the main pane, look for computers with the relay icon (). 
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Go to Administration. On the left, click Updates > Relay Management. In the main pane, expand a Relay Group. Your relays are displayed with the relay icon (). 
 
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Double-click the relay that you want to upgrade.
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Click the Actions tab.
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Click Upgrade Agent.Follow the steps in the wizard that appears. Steps are similar to upgrading a Deep Security Agent, since a relay is just an agent with relay functionality enabled. For details, see Upgrade Deep Security Agent.
Upgrade a relay by running the installer manually
Sometimes you may not be able to upgrade the relay software from the Deep Security
                  Manager. In these cases, you can upgrade a relay manually. For detailed instructions,
                  see  Upgrade the agent manually. The referred-to instructions are for agents, but will work equally for relays.
 
		