3.2 Release Notes

Nested Dielectrics: Nested priority method for interacting dielectrics. Render complex water/glass/ice surface without numerical issues - just simply add a small overlap between geometries. Click for more info
Stereo Lenses: Two new lens types implemented- Stereo Fish Lens and Lat/Long. They are suitable for virtual reality (VR) systems such as Oculus. Click for more info
Extensions API: 3rd party developers can now develop their own procedural geometries, geometry modifiers, procedural textures, camera lens, etc.This extension API is included with the main package. Click for more info
PSD Output support: Maxwell can now save the render in PSD format in 8, 16 and 32 bits. Click for more info
Procedural Emitters: Apply emitter materials to non-triangle mesh entities such as hair, particles, etc. Click for more info
Separated Reflection & Refraction channels: Render more combinations such as "Diffuse", "Reflections", "Diffuse + Reflections", "Refractions". Click for more info
New "Reflectance" channel: Shows plain colors without the influence of global illumination. Click for more info
New "Asset Reference" extension: Reference a variety of file formats directly in Studio without pre-converting to MXS. Click for more info

Subsurface Scattering: Significant speed improvements have been made
Maxwell Scatter: New "remove overlapped" option to avoid collisions between instances generated by the scatter algorithm, and new "uniform scaling" option to avoid undesired deforming when scaling scattered instances
Multilight editor: Added feature to select and edit multiple emitters at the same time + new "Sort by name/type/intensity" functions
Grass and Scatter "Grow Towards World-Y" option: This percentage allows you to define if the main growing direction of the blades will be completely vertical towards the world-Y axis (when set to 100%), perpendicular to the "ground" surface (when set to 0%) or at any value in between.

The new "nested dielectrics" feature also fixes artifacts with dielectrics/SSS objects that intersect.
Fixed artifacts rendering intersecting volumetrics
Error messaging improved, specially with licensing errors.
Fixed issues in opaque material type when using textures
Color space management of input textures improved
Fixed "hidden from reflections and refractions" was not working properly with coatings.
Fixed instances of hidden reference were not visible unless they were translated
Fixed issue with scaled instances of procedural geometries not showing up in the render
Extra Sampling:
Fixed Extra Sampling with render region was not stopping at the desired sampling level
Better support for missing paths for bitmap masks
Fixed custom alpha channels in referenced MXS
Fixed other minor bugs
Fixed potential crash in procedural displacement
Fix potential crash when using EXR in OSX
Fixed hang when using deep channel at very high resolutions
Fixed crash when opening/resuming corrupted MXI files
Fixed issue in texture interpolation
On the fly displacement improved.

The new network system (tp_network) is much more stable now. Many features of the old network system have been added.
Better support for Extra Sampling in cooperative renders