#. Install the new software on all nodes, either from packaging (if available)
or from sources; the master daemon will not start but give error messages
about wrong configuration file, which is normal
#. Upgrade the configuration file::
#. Install the new software on all nodes, either from packaging (if available)
or from sources; the master daemon will not start but give error messages
about wrong configuration file, which is normal
#. Upgrade the configuration file::