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

4.1.053 (Beta)

• Voxels allocations can now be now increased mid-simulation based on sources and other requirements rather than blindly increasing based on a percentage which may not be sufficient. Should eliminate any domain collisions that could have occurred before.
• Supports Houdini 20.0.896, 20.5.684, 21.0.671, 21.0.700, 21.0.729, 21.0.792 & 22.0.368 on Windows, macOS, & Linux.
• Cuda Version 12.2, Linux Driver 525.60.13+, Windows Driver 525.41+
• Released 31 August 2026, expires on 31 September 2026
• Download 4.1.053

4.1.050 (Beta)

• Mask volumes can now be the same name as the source volumes when sourcing VDBs. So now you can mask a source by itself.
• You can toggle what fields get contributed to during fuel combustion.
• Added the option to emit color, aux1, & aux2 from fuel combustion.
• Hiding the RieChow filter mode as it is not ready yet.
• Supports Houdini 20.0.896, 20.5.684, 21.0.671, 21.0.700, 21.0.729, 21.0.792 & 22.0.368 on Windows, macOS, & Linux.
• Cuda Version 12.2, Linux Driver 525.60.13+, Windows Driver 525.41+
• Released 19 August 2026, expires on 19 September 2026
• Download 4.1.050

4.1.045 (Beta)

• Complete swap of the sparse data structure. Moving from an octree to a hash table. The hash table offers better GPU performance of voxel index lookup compared to an octree. It also means that expensive operations such as neighbor sparse tile lookup can be moved from the CPU to GPU. Overall CPU time is much much lower now compared to using an octree.
• Project non divergent kernel optimizations.