Fixed potential crashing when saving and loading .hip files containing code in the Python Source Editor.

Added hou.GeometrySpreadsheet.setAttribType() to control whether point / vertex / prim / detail attributes are being displayed in the spreadsheet.

Extended hou.LopNode.addHeldLayer to work after both editableStage and editableLayer (previously it only worked after editableStage).

Karma Cryptomatte LOP now creates render vars as float3, rather than color3f.

Karma Cryptomatte LOP now creates render vars as float3, rather than color3f.

Fixed a bug where some portions of volume may appear cut off when it has large filter width and has velocity blur enabled.

Fixed a bug where some portions of volume may appear cut off when it has large filter width and has velocity blur enabled.

The USD Import TOP now has an option to encode imported attribute names using Houdini text encoding format, instead of just replacing all invalid characters with an '_'.

Extended hou.LopNode.addHeldLayer to work after both editableStage and editableLayer (previously it only worked after editableStage).

Fixed translation issue with mtlx2karma.py which sometimes caused bad JSON to be created (which could lead to crashes in Karma).

Fixed a bug where some portion of VDB volume could appear missing with velocity blur enabled.

Fixed a bug where some portion of VDB volume could appear missing with velocity blur enabled.

Fixed a bug where some portion of VDB volume could appear missing with velocity blur enabled.

Fixed bug where MMB+drag on the timeline would discard the current selection instead of modifying selected keys.

The pdg.scheduler.submitGraphAsJob function now returns the job ID as a second return value, in addition to the job's status URL.

The pdg.scheduler.submitGraphAsJob function now returns the job ID as a second return value, in addition to the job's status URL.

Fixed an issue where the Cache LOP was recooking its inputs more often than necessary when in "Cache Cooked Frames" or "Cache Current Frame Only" modes.

Renamed the environment variable HOUDINI_ANIM_ENABLE_GRAPH_SHADER to ENV_HOUDINI_ANIM_ENABLE_GPU_ACCELERATION and updated documentation.

Moved more hotkey handling in the LOP viewer to give states first crack at more key events.

Fixed an issue where the Cache LOP was recooking its inputs more often than necessary when in "Cache Cooked Frames" or "Cache Current Frame Only" modes.

Fixed a bug introduced in 20.0.303 that caused viewers to be missing their node interests.

• Fixed incorrect material assignment when using instancers.
• It is now possible to use/mix both material override attributes (unreal_materialX)and material instance attributes (unreal_material_instanceX) with instancers.
• Fixed generated material instances not always being properly baked for instancers.
• Removed the "Update Input Landscape" feature as it was non longer needed.Please use Landscape Edit Layers instead.

• Fixed incorrect material assignment when using instancers.
• It is now possible to use/mix both material override attributes (unreal_materialX)and material instance attributes (unreal_material_instanceX) with instancers.
• Fixed generated material instances not always being properly baked for instancers.
• Removed the "Update Input Landscape" feature as it was non longer needed.Please use Landscape Edit Layers instead.