Decreased File COP load times by approximately 2x.

Included implicit surface headers in HDK.

Clean up some artefacts in the new UI.

Fix display of the Save Node Preset window.

Fixed bug in the LOP Import SOP where the packed USD prims' pivots were not updated when recooking due to a frame change if the pivot mode was set to Centroid and the source LOP node had time samples but was not time-dependent.

Fix missing undo group when using the CHOP constraint menu from the OBJ parameter editor. Reset the constraintpath parameter when deleting a constraint.

Fixed a bug in the new UI skin where tab label text in the Scene Graph Details pane would be unnecessary elided in the middle when shrinking it.

Fixed a bug where the floating gnomon wouldn't respond to clicks when some states are active

Fixed issue with Background Render captures being one iteration behind.

Background Render in Apprentice will now properly downsize renders to the license-based limitation, if necessary.

In the rig tree, disable "Unpack Path" in joint and object modes.

Fix a bug where several HDA buttonstrip parms were returning 104 as the value of an empty buttonstrip.

In the rig tree descriptions, drop delimiting parentheses from joint node descriptions and the "contains" prefix from packed node descriptions.

Add additional rig tree icons for characters and tools.

Fix a bug where non-whitespace characters (like ".") were treated as pattern separators in the rig tree filter field.

Remove redundant terminating forward slash from folder names in the rig tree.

Add support for the "**" filter pattern in the rig tree. In addition to matching items specified by the prefix pattern, this pattern also returns all subitems of those folders matching the suffix pattern.

Add a "Cancel" button to the rig tree dialog and fix a bug where pressing escape in the line edit would always exit the current state.

Fixes crash on instancing geometry light via Efficient Light Sampling geometry setting. The option is deprecated and Geometry Light LOP node should instead be used for instancing geometry lights.

Fixed issue with Background Render captures being one iteration behind.

Background Render in Apprentice will now properly downsize renders to the license-based limitation, if necessary.

Fixed a bug on the Rig Builder SOP where the controls would disappear when exiting the shape tweak mode.

Fixed sporadic crashing in the Houdini Engine `hars` binary that occurred because of a race condition in the Houdini performance monitor. The crashing occurred when performance monitor logging was enabled (default behaviour).

Fixed sporadic crashing in the Houdini Engine `hars` binary that occurred because of a race condition in the Houdini performance monitor. The crashing occurred when performance monitor logging was enabled (default behaviour).