December 10, 2019
Update to Arnold 220.127.116.11.
New AOV and Light Groups interface.
Extend the Arnold Properties modifier for cameras.
OSL version of the physical sun and sky shader.
Export/Import materials as .ass/.mtlx files.
Include the Arnold License Manager.
Remove the operator graph button from the rendering options.
Switch to 4-digit installer.
Crash with an Alembic object instanced in GPU mode.
Various OSL maps not rendering correctly in GPU mode.
Procedural and volume object's On Frame label is wrong and confusing.
Poor support for animated procedurals and volumes.
MAXtoAInterface.MAXtoAVersion()/ArnoldVersion() print strangely in Windows 7.
Quad lights set to portal should not contribute to lighting in viewport.
See the Arnold 18.104.22.168 release notes for the full list of enhancements and fixes.