In much the same way that individual OSGi bundles can be versioned, SpringSource dm Server allows applications to be versioned. How exactly you do this depends on how you have packaged the application:
Application-Version header in the MANIFEST.MF file of the PAR file.version attribute of the <plan> root element of the plan’s XML file.Bundle-Version header of the MANIFEST.MF file of the bundle.
SpringSource dm Server uses an application’s version to prevent clashes when multiple versions of the same application are deployed at the same time. For example, the application trace support described in Section 4.7, “Application trace”, includes the application’s name and version in the file path. This ensures that each version of the same application has its own trace or logging file.