Under the hood, CHA/V 3.0 was almost a complete re-design. Every circuit trace was rerouted in an effort to minimize cross-talk and clean up the signal.
It’s still an unruly little beast, but it’s slightly more tameable now.
CHA/V 2.0 User Guide is still relevant to most of its functionality.
An brief supplement to describe the changes to how the 3.5mm jacks work is coming soon.