If you linked your ${HOME}/SAXO_DIR to

your are always using the up-to-date version of SAXO. There is nothing to do.

You can check the status of your ${HOME}/SAXO_DIR with the following command:

  $ svn status -u ${HOME}/SAXO_DIR
	

Or, for example, if you want to check the status only of ${HOME}/SAXO_DIR/SRC directory

  $ svn status -u ${HOME}/SAXO_DIR/SRC
	

You can update your ${HOME}/SAXO_DIR with the following command:

  $ svn update ${HOME}/SAXO_DIR
	

Or, for example, if you want to update only ${HOME}/SAXO_DIR/SRC directory

  $ svn update ${HOME}/SAXO_DIR/SRC
	

For a quick help on svn status and svn update see

  $ svn help status 
  $ svn help update 
	

The only way to update SAXO is to redownload and reinstall the tar file as you done for the first installation.