This release fixes bugs in beta 3 and brings a few new features:
- LED strips on expansion boards
- Experimental Enterprise Authentication to WiFi-equipped Duets.
- Reduced motor noise and an experimental Assisted Open Loop mode for the Expansion 1HCL board
See https://github.com/Duet3D/RepRapFirmware/wiki/Changelog-RRF-3.x-Beta#reprapfirmware-350-beta4 for the upgrade notes and change list.
Duet users running in standalone mode can use the files here. The WiFi server modules are still version 2.1-beta4 so there is no need to reinstall them if you are already using that version.
Duet users running in SBC mode should upgrade from the unstable feed on the package server as usual.