Release Notes: This release adds a profiler, animation editor, and project search to the editor. The runtime can now load scenes and assets in the background in a separate thread. Unity projects can now be checked into external version control systems, such as Subversion, Bazaar, Git, or Perforce. Anti-aliasing now works with full-screen effects. Ambient occlusion has been added as a built in effect. Additionally, this release contains a lot of minor features, bug fixes, and optimizations. Unity is now available free of charge.