The latest Arnold release amplifies rendering performance, interactivity, and reliability allowing you to deliver beautiful results faster!
Check out the timeline to see how Arnold has evolved: https://makeanything.autodesk.com/arnold
Get more information on Arnold 7 in the release notes:
https://docs.arnoldrenderer.com/pages/viewpage.action?pageId=138408071
Try out these awesome new features by updating to Arnold 7: https://www.autodesk.com/products/arnold/overview