Zebra's installation directories have changed a bit. In addition,
    the new loadable modules must be defined in the
    master zebra.cfg configuration file. The old
    version 1.3.x configuration options
    
     # profilePath - where to look for config files
     profilePath: some/local/path:/usr/share/idzebra/tab
    must be changed to
     # profilePath - where to look for config files
     profilePath: some/local/path:/usr/share/idzebra-2.0/tab
     # modulePath - where to look for loadable zebra modules
     modulePath: /usr/lib/idzebra-2.0/modules
    
The internal binary register structures have changed; all Zebra databases must be re-indexed after upgrade.
    The attribute set definition files may no longer contain
    redirection to other fields.
    For example the following snippet of
    a custom custom/bib1.att
    BIB-1 attribute set definition file is no
    longer supported:
    
     att 1016            Any 		1016,4,1005,62
    and should be changed to
     att 1016            Any
    
    Similar behaviour can be expressed in the new release by defining
    a new index Any:w in all GRS-1
    *.abs record indexing configuration files.
    The above example configuration needs to make the changes
    from version 1.3.x indexing instructions
    
     xelm /*/alternative  Body-of-text:w,Title:s,Title:w
     xelm /*/title        Body-of-text:w,Title:s,Title:w
    to version 2.0.0 indexing instructions
     xelm /*/alternative  Any:w,Body-of-text:w,Title:s,Title:w
     xelm /*/title        Any:w,Body-of-text:w,Title:s,Title:w
    
    It is also possible to map the numerical attribute value
    @attr 1=1016 onto another already existing huge
    index, in this example, one could for example use the mapping
    
     att 1016            Body-of-text
    
    with equivalent outcome without editing all  GRS-1
    *.abs record indexing configuration files.
   
    Server installations which use the special
    IDXPATH attribute set must add the following
    line to the zebra.cfg configuration file:
    
     attset: idxpath.att