This version uses the Arnold 18.104.22.168 core
MAXtoA Features and Known Issues
This release of the Arnold for 3ds Max (MAXtoA) plugin does not include support for all Arnold or 3ds Max features. See the online documentation for further details. 3ds Max 2017 Service Pack 2 is required, and provided in the MAXtoA installation.
New Arnold Properties object modifier.
New Shaders: thin_film, flakes, complex_ior.
Shader state_rgb is removed.
Skydome Portal Option
Arnold Scene Source file export and Archive render options.
Kick.exe now included.
Miscellaneous plugin improvements and fixes.