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Epic Games, Inc. has released the May 2011 UDK Beta, the latest version of the Unreal Development Kit (UDK), the free edition of Unreal Engine 3 that provides access to the award-winning toolset used in blockbuster video games and 3D visualizations. May Beta Upgrade NotesUnreal Editor- You can now select multiple actors and transform them as a group!- Udn.epicgames.com In light of the new actor grouping system, the old grouping system and group browser have been renamed to Layers.- The ability to toggle the visibility of specific in-editor sprite categories has been added.- Unreal Landscape now automatically performs LOD-independent lighting without artist input.- The editor now allows packages to be auto-checked in along with maps.Unreal Kismet- Easily find and add named variables to your Kismet using the new "Named Variables" right-click sub-menu.Mesh Painting- You can now copy and paste vertex colors when painting meshes.Other Improvements- AnimSets can now be edited as a group from Unreal Content Browser.- Skeletal mesh import time has been drastically decreased.- Skeletal mesh compression is now per LOD, not per mesh.- Skeletal mesh actors can now be converted to SkeletalMeshCinematicActors without losing data.- It is now possible to view different UV channels in the Static Mesh Viewer without changing the Unreal Lightmass UV coordinate index.- The UV previewer in the Static Mesh Editor now defaults to LightmapCoordinateIndex channel when possible.- Unreal Cascade allows the removal of duplicate modules from the system via the Particle Systems context menus "Remove Duplicate Modules" entry.