Changes to the SDK since the 8.5.1 release:

• Revamped billboard transition system. Billboards now gradually fade between angles giving an overall smoother presentation.
• PlayStation 5 version compiled against PS5 2.50.00.08 SDK.
• Xbox Series X version compiled against the February 2021 QFE1 GDK.

• Bug fix in grass_vs.hlsl that prevented proper orientation in alternate coordinate systems.
• Correction in CTreeRI_t::Init3dGeometry() that prevented billboard-only models (those lacking any 3D level of detail geometry) from loading.