Another interesting feature included in this release is the ability to more finely calibrate the Replicator’s dual extruders. These must be positioned at a very precise distance from each other, otherwise the two colored prints will be consistently misaligned.
MakerBot has released quite a few versions of ReplicatorG, each gradually improving the quality of the experience for their clients. They’ve had to do so for not only quality reasons but also to support new 3D printers and 3D printer components they’ve added over the years. We suspect they plan on having many more releases, if only because the version number includes FOUR digits!
Via MakerBot