Changed the default value of the HOUDINI_NEW_CONTEXT_OPTION_RULES environment variable to 1.

The Otis solver is now less prone to create NaNs when simulating very small tetrahedra.

Updated the ZibraVDB plugin to v1.0.8.0. This update adds local license server support and fixes a minor memory leak.

XPU: Fixed Modifier Start Level parameter in Karma Volume VOP not taking effect with embree device.

Marked the Intel Mac (x86_64) builds as deprecated. The Houdini 21.0 Intel Mac builds are fully supported but the builds will no longer be available in a future Houdini major or minor version release.

Fixed a bug in the spline component where the parent joints where included in the list of joints to check for the primary axis. It will now only look at the driven joints.

Replaced OK/Cancel with Yes/No on the autorig component log viewer and apex graph node, popup dialogue.

Fixed a bug with Vulkan MaterialX shader sharing that would cause geometry with other materials that had the same shader to disappear when the one of the materials' shader network was rewired.

Updated the ZibraVDB plugin to v1.0.8.0. This update adds local license server support and fixes a minor memory leak.

Fixed a bug in the Qt 6 build where the TOPs work item info window failed to open.

• Fixed details generic property attributes not being properly applied to Cookables.
• Fixed incorrect bounds when focusing on the HoudiniAssetActor.

Fixed an issue in the APEX Animate state with the handle's components not being hidden as expected when the corresponding parameter is locked.

New HOUDINI_HIDE_PRODUCT_TYPES environment variables lists USD Render Product product type values that should exclude their AOVs from the list of AOVs that can be displayed in the viewport. Hides karma checkpoint AOVs by default.

Adjusted the order and description of the hotkeys in the APEX Animate state to be more consistent across the tools.

Fixed a bug in the spine component where the guides where not updated as expected.

Improve the rig mapping for the feet for the Rig State

Handle xform gadget handle updates in case no xform data for a given control can be found.

Extend the mapping pattern for the Rig State joint mapping for the root and pelvis joints.

Add option to automatically remove unmapped joints from the hand component for the autorig builder interactive state

Fixed a bug in the HDA Event Script editor where script names would inadvertently change.

Add better slider defaults for the Rig State body components

Autorigging: Fix a bug where the guide rig breaks if the parent of the spline is mapped to a joint that is also part of the driven mapping.

Add extra error handling for resetting parameter values with the control widget.

Ported Houdini from MKL 2020 to oneMKL 2025 for Linux and Windows. The oneMKL 2025 library is statically linked into Houdini with its symbols hidden.

Ported Houdini from TBB 2020 to oneTBB 2022 in adherence to the VFX Reference Platform CY2025 specification.