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

1.0.169 (Beta)

Added drag & speed limit forces.
You can now source into particle attributes such as velocity, temperature, color, and viscosity with a VDB or source shape. The field source parameters have been updated to have either a (Particle) or (Field) suffix so you know if these settings are affecting particle attributes or fields. Custom sources also support this new ability.
The output sdf & gradient fields have been renamed to “Collision Surface” & “Collision Gradient” to make it clear it is not the fluid surface. There is now also an option for fluid surface to be output but it is not yet implemented.
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 05 February 2026, expires on 05 March 2026
Download 1.0.169

1.0.166 (Beta)

You can now diffuse and dissipate the color and temperature particle attributes. Pay special attention to temperature diffusion’s “Air Conductivity” parameter. This lets you control how much temperature is lost / gained through the surrounding air and colliders.
You can use the viscosity or temperature particle attributes to drive viscosity. Temperature is inverted so low temperature values have high viscosity and high temperature values have low viscosity.
You can now source collision temperature. Good for melting or freezing liquids when using viscosity + temperature + temperature diffusion.
Fixed a bug where Houdini would crash if you re-initialized with no particles in your sim.
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 02 February 2026, expires on 02 March 2026
Download 1.0.166