Thanks for filing the issue, I do not yet regularly check 0.4-compatibility of the NetCDF package, because I do my day-to-day work still on julia 0.3. I hope the issue is resolved now.
In general, I agree with Steven and Tim, if your issue is only about saving an array to be able to load it later on, I would use the HDF5 package and JLD files. However if you want to share your files in the geophysical modeling community, where the NetCDF is still the format of choice, you might want to stick to using this format.
