This release fixes bugs in 3.5.0-rc.1. It also provides additional control over the application of input shaping, and it feeds back data on filament monitor and closed loop motor performance to facilitate monitoring. See https://github.com/Duet3D/RepRapFirmware/wiki/Changelog-RRF-3.x-RC#reprapfirmware-350-rc2-changes-since-rc1 for the changes.
Users of Duet with attached Single Board Computer, please upgrade via the unstable feed on the package server.
Users running in standalone mode should use the files here. The WiFi module firmware included here is version 2.1beta6.