The version numbers for fortran and c++ are now considered independent of the C library version number. The assumption is that the fortran and c++ libraries can work with any netcdf c library. It is possible that in the future, because of interface changes there will be published constraints indicating that certain versions of fortran or c++ will only work with some specified range of netcdf c library versions. That should not be the case at the moment. If you encounter a situation where the fortran or c++ library does not work with some netcdf c library version please let us know so we can fix it. =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: CWZ-644870 Department: Support netCDF Priority: Normal Status: Closed