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Existing LANSA systems that are at the current version can be updated using the Modify or Repair an existing install option. The install installation will list which configurations are eligible for an Upgrade and which configurations can be Modified or Repaired.
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The Custom install is provided for experienced LANSA developers. The Custom option allows you to choose the products you wish to install and to change the default installation and configuration settings. It is your responsibility to ensure that the software installed using the Custom install will operate properly.