This release provides improved support for the so called recarrays (record arrays, or arrays of composite types).
One can now read recarrays into user provided struct values (and slices/arrays of those) as well as save these values into numpy data files (and read them back from python).
Not all Go values are supported nor meaningful in a numpy data file context (ie: maps, interfaces and channels are off limits).
Also, right now ragged arrays can only be read, not written (writing support would mean writing a pickle serialization package - gpython has one but it's a bit of a large dependency).