Changes from Release 2 - RC2 - Mechanical:

addition of "vertical" variants of controller and power supply mounting brackets (where required).
controller mounting brackets have moved from using "self tapping" of M3 screws, to brass heat set inserts.
slice engineering magnum+ support.
minor strength and printability improvements to the bottom half of the 60:1 worm drive gearbox.
reduction in mounting screw hole count on all laser cut panels to aid in serviceability (no loss in frame strength).
use K3 style electrical box corner for uniformity across product line (less material).

Changes from Release 2 - RC2 - Electrical/Software:

new klipper configurations for all machines, greatly simplified with addition of the "forth coming" annexed probe module
recommended controller is now either a fysetc s6 v2 or spider with a bigtreetech stepper expander board
klipper configuration for fysetc dual s6 v2.0 boards (with annexed probe module support).
klipper configuration for fysetc single s6 v2.0 board with BTT expander (with annexed probe module support).
klipper configuration for single fysetc spider board with BTT expander (with annexed probe module support).