Fixed an issue in point deform that was preventing it from being compiled when using a piece attribute.

XPU: fixed an issue where the lowest (ie most high-res) image would get temporarily loaded into memory for very high-res images (ie >= 64Kx64K)

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

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 Qt 6 build where the TOPs work item info window failed to open.

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

Added a new mode for the HOUDINI_BUFFEREDSAVE environment variable. When set to 2, the output stream for the file is not opened until the buffer is ready to be saved, which avoids corrupting the file on disk if a crash occurs during the saving process. This mode may exhibit some differences in error reporting, for example if the output stream only fails to be created when flushing the memory buffer, vs failing at the beginning of the save process.

Fixed a bug where the Gas Axis Force DOP state's HUD was missing the handle hotkey bindings.

Fixed an issue where Houdini would execute volatile view state changes for a previously released key it incorrectly still believed was held.

Fixes a bug with incorrect display of inset guides in Poly Extrude 2.0 SOP state visualization.

Fixed an attribute evaluation warning on the Image Magick TOP, when using a custom file path instead of using upstream input images.

Fixed bug where switching desktops by hotkey did not update the desktop menu label.

Fixed an issue where the hou.hipFileEventType.AfterSave event callback was called before the output stream for the hip file was closed. This was primarily noticeable with the HOUDINI_BUFFEREDSAVE environment variable enabled, in which case the callback would see an empty file when it was invoked.

Fixed a bug where cryptomatte data planes may contain ids with zero pixel coverage that serve no purpose when rendering multiple frames of within single process.

Fixed a bug in the Attribute Transfer SOP that could result in incorrect vertex attribute values transferred from open polygons.

Fixed a bug in the SOP Import LOP where prototypes could be unexpectedly shared between point instancers (e.g. when using the 'usdinstancerpath` attribute to create separate instancers) when the prototypes were not being imported at an absolute path.

Houdini (VEX, Karma, etc) will handle detection of texture color spaces more robustly when there are no file_rules in the OCIO config file.

Fixed a bug in the Convert SOP that confused point and vertex elements for mesh primitives potentially leading to a crash.

Fixed a bug with TOP nodes cooking with errors when undo-ing changes in a TOP network.

When outputting a Value Clip that didn't have per-frame "active" entries, Solaris could generate invalid clip metadata with duplicate entries in the "times" array. Now we properly avoid creating these duplicates by skipping any "new" entries that match the start time of any existing entry.

Fix display issue when using High Quality lighting and Fast X-Ray modes on MacOS

Fix the vertical position of submenus when the Left-Hand Menus preference is active. This was making the tab menu very difficult to use, since the submenu would appear a row too low.

Extracting Subnet contents will now extract output nodes in non-VOP/COP/SHOP contexts. This restores the behaviour of 20.0; and also affects thte hou.OpNode.extractAndDelete.

Added a NURBs Lattice option to the SOP Lattice.