• Fixed a bug in XR::AABB::Read().
• Changed XR::Camera2D's ToScreen() to ToRelative(), 'cause that's what it does.
• Revamped XRSF-compatible classes' interface.
• Added XRSF-writing feature to XR::AABB and XR::Coord2D
• Added XR::WorldPosition() to help converting from screen space to world space, based on XR::Camera2D's viewer and layer.

And more. Consult changelog.txt for details.

Grab XRhodes from here (OS X version coming later).