The major feature is the new version of the Godot XR Tools, which includes breaking changes, particularly around hands.
I've cleaned up and re-organized some of the scripts and examples.
Also, a virtual joystick indicator was added to improve the example user experience of moving a character around.
This release is for Godot 3.5.1, and includes both Godot OpenXR 1.3.0 and Godot XR Tools 3.2.0.