December 10, 2019
Autodesk Network Licensing now requires new license files with an updated 2020 version. Please follow the instructions on this page to generate your license file. More info about Arnold 6 licensing can be found here.
Update to Arnold 188.8.131.52.
New AOV and Light Groups interface.
Extend 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 184.108.40.206 release notes for the full list of enhancements and fixes.