Use wafe-1.0-patch12-13.tar.gz to upgrade from Wafe 1.0.12 to 1.0.13, if (and only if) - you have a Wafe source tree on level 1.0.12 - you have perl (4.0 or 5.0) installed on your system. These patch archive does not have generated C (or TeX or Tcl) code included. The necessary files will be generated by the perl written by Wafe's c code generator If you do have doubts about one of these items, please use wafe-1.0-patch13.tar.gz for upgrading. In order to upgrade, change to the wafe home directory, perform the usual configuration in wafe/src/Imakefile (as indicated in INSTALL) or use the TOPMAKE (read the top section of wafe/src/TOPMAKE). Gustaf Neumann