Here are all updates, patches, bug fixes, and build info.

1.0.183 (Beta)

• Grid to particle tri-linear sampler is now 1.41x faster.
• New much faster algorithm for creating SDF’s.
• More accurate SDF creation.
• Updated advection kernel to better use SDF values when path tracing.
• New adhesion kernel that should respect sharp corners better. It is stronger than the old adhesion so you may need to lower the force magnitude in existing setups. Added an environment variable (PARADIGM_SOLVER_USE_OLD_ADHESION = 1) that will give you back the old kernel if you need it.
• Supports Houdini 20.0.896, 20.5.684, 21.0.512, 21.0.559, & 21.0.596 on Windows, macOS, & Linux.
• Cuda Version 12.2, Linux Driver 525.60.13+, Windows Driver 525.41+
• Released 03 March 2026, expires on 03 April 2026
• Download 1.0.183
• Download 1.0.183 (Pre-Release | Dedicated Paradigm License Required)

1.0.178 (Beta)

• Replaced viscosity’s scale attributes with control ramps for more detailed control and the ability to layer multiple attributes’s influence. Please note that in order to use attributes such as viscosity and temperature you need make sure to output them. This should be automated in future builds.
• Particles viscosity values are now defaulted to 1.0 if there is no viscosity attribute on source points. Before it was 0.0 which meant viscosity was effectively off for the particles.
• Fixed issue with the pull blend mode when sourcing with source shapes. It should no longer zero out values if the source value is larger than the target value.
• Fixed issue where the camera frustum did not cull particles that were just created.
• Fixed bug where the color ramp for particle speed did not update.
• Fixed bug where velocity was not sampling sources as a staggered grid.