Yes, unfortunately you’ll need these changes to shconv and sh2amp, which are only available in 3.0.0. The main issue is that both commands were only capable of handling single-shell data till now.
This can probably be done using older versions, but it would require a lot of scripting and massaging to handle each shell in turn and recombine into a coherent DWI data set – and the b=0 volumes will probably need to be handled separately as well. I personally wouldn’t recommend it. But you can always install 3.0.0 alongside your main installation if that helps…? Recent discussion on this topic here.