Not that I know of, there are a few changes planned but most won't be in production until fall. It is conceivable the 6205's will have the new clamp with the rubber insert to reduce noise, these are just now entering production and there will be a new rubber sound dampner under the disk on the drive unit likely by the end of April. The production of these new parts is just beginning so I don't know that they will be in the next batch we get and these changes are fairly small and easily upgraded later. The next major change will be a pure Titanium shaft but that won't be ready until September. We are mainly behind because the circuit board in the pump wasn't reordered on time and as a result no pumps were made for most of January and February.