Added a new COPs sample compositing setup to the Background Plate LOP's quick setup menu.

XPU: fixed an Optix device crash that could happen when XPU is used with COPs

Fixed a bug in Path Deform and Chain SOPs on curves with points with multiple vertices that could cause incorrect results.

Fixed the filtering of attribs and groups on sim points on the RBD IO SOP.

Fixed a bug with subnets in Remote TOP Graphs copying input nodes into the subnet, for each Input inside the original subnet. In addition to causing the graph to have an excessive number of nodes, this was also causing unecesarily large .hip file sizes when saving a TOP network with a Remote Graph node in it.

Added hou.SceneViewer methods isRendererPaused and setRendererPaused to test and set the "paused" state of the active LOP render delegate.

Fixed crash when showing vertex groups in the viewport group list with open polygons.

Fixed crash when showing vertex groups in the viewport group list with open polygons.

Fixed crash when showing vertex groups in the viewport group list with open polygons.

Fixed inconsistent RigTree panel tree ordering with OBJ nodes.

Fixed a bug where enabling both lens shader and indirect guiding would cause the lens shader to reuse sample index between primary passes, causing jaggy appearance due to stuck pixel filter jitter.

Fixed a bug where enabling both lens shader and indirect guiding would cause the lens shader to reuse sample index between primary passes, causing jaggy appearance due to stuck pixel filter jitter.

Fixed the RigTree panel that wasn't updating to the current node on creation of the panel.

Added Qt5QuickControls2, Qt5QuickShapes and Qt5QuickTemplates2 libraries to Houdini's Qt distribution. These libraries enable users to run basic QML and QtQuick code.

OpenCL device selection in Miscellaneous preferences now shows the index of each option. Also, hgpuinfo will report the UUID of each compute device that supports the required extension.

When doing renders to a LOP Viewer, include AOVs linked to render products thof any type, not just "raster" render products. This allows renderer- specific render product AOVs to be accessible through the viewport.

Re-apply a change that allows Houdini to generate unique selection strings for nested point instancer instances by setting the environment variable HOUDINI_PROTOPATHS_IN_INSTANCE_SELECTIONS=1.

Fix crash when using negative primitive indices with rig::PrimConstraint

Fix bug where lights could still affect viewport after being deleted

Improve performance in LOPs viewport

Fix bug where the APEX Add Groom SOP would not get created by default as an oval node shape.

Fixed random crashes in the Houdini (main) Python 3.11 build due to incompatibilities with Houdini's PySide2 5.15.2 package.

Bumped up Houdini's PySide2 to 5.15.15, which has complete Python 3.11 support.

Packages - Add HOUDINI_SCRIPT_PATH legacy support

• Update hou.ui.loadPackage/unloadPackage/loadPackageArchive to supportscripts located in 'scripts/python` sub-folders.

Have ML Regression Train use numpy==1.26.0 instead of numpy==2.1.0. This gets rid of warnings and prevents potential incompatibility issues with torch.

Ensure that ML Regression Train is capable of GPU training on windows machines by obtaining the torch package from download.pytorch.org.