21 October 2018


This is a feature release, bringing round corners, alembic procedural improvements and many core fixes.


  1. Get the install files on Solid Angle Downloads.
  2. Follow these installation instructions.


This release uses Arnold and OpenVDB 4.0.0.

Binaries available for the following Houdini, Houdini FX, Houdini Indie and Houdini Education production builds:


and for the following platforms:


Please note that Houdini Apprentice does not support third-party renderers and thus cannot run HtoA.


Incompatible changes



See also the Arnold release notes for the full list of core enhancements and fixes.