Next Limit has recently released Maxwell Render v 4 - click here for the Maxwell Render version 4 Release Notes.
All V1, V2and v3 license holders will need to upgrade to V4 in order to use the V3 features as well as these V4 ones.
This will be a free update for Maxwell Render V3 license holders.New Features in V4:Spot Emitters
Custom Sampling Levels/"Extra Sampling"
Open VDB support
Animation tools in Maxwell Studio - watch the video
Improved performance in Windows
Camera Response / White balance
Improved Shadow Channel
Custom Alpha per material
Simplified license activation procedure - with videos!
"Tech preview" of the NEW network manager
ALL will be updated to include support for new V4 features. The following plugin versions are also now supported:
NUKE 8 & 9
Photoshop CC 2014
After Effects CC 2014