This release fixes issues discovered in 3.7.0-beta.1 and introduces minor new features. Upgrade notes and change list are at https://github.com/Duet3D/RepRapFirmware/wiki/Changelog-RRF-3.x-Beta#reprapfirmware-changes-from-370-beta1-to-370-beta2.
For WiFi equipped boards the recommended WiFi firmware version is 2.4.0 available at https://github.com/Duet3D/WiFiSocketServerRTOS/releases#release-v2.4.0.