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Kit 107.3.5 Release Notes#

Release Date: January 2026

Kit SDK#

Added#

  • CAD Converter - Surface tolerance UI to adjust triangle count and file size [OMPE-69716]

  • CAD Converter - Up-axis option for STEP file import [OMPE-58426]

  • Kit SDK - omni.kit.thumbnails.usd added to registry. [OMPE-61043]

Fixed#

  • CAD Converter - CAD conversion can take excessively long due to redundant centroid calculations per surface patch instead of per entity [OMPE-69584]

  • CAD Converter - STL export is failing [OMPE-50718]

  • Fabric Scene Delegate - Kit could crash when opening stages with Fabric Scene Delegate enabled while processing lights and other xformable prims [OMPE-55229]

  • Kit SDK - Pressing keyboard keys generated spurious console warnings in Omniverse on DGX Cloud [OMPE-72782]

  • Kit SDK - Setting omni.ui.scene Widget width to zero crashes Kit [OMPE-72609]

  • Kit SDK - XR events are not consumed when calling IEvent.consume() or XRSelectionEvent.consume(), causing UI prims to be erroneously selected instead of interacting with the UI [OMPE-72607]

  • Kit SDK - omni.kit.viewport.utility can raise AttributeError: 'NoneType' object has no attribute 'do' when performing USD operations during setup if TransformPrimCommand is not yet registered [OMPE-70430]

  • Kit SDK - omni.ui.Window.destroy() does not fully remove the window from omni.ui.Workspace.get_windows(), causing ui_test.find_all() to find destroyed windows [OMPE-69226]

  • Kit SDK - Measurement Manager initialization error when loading maps in Omniverse on DGX Cloud [OMPE-68642]

  • Kit SDK - omni.activity.ui can throw ZeroDivisionError: float division by zero when loading assets [OMPE-65546]

  • Kit SDK - Nucleus sign-in flow hung and eventually crashed application [OMPE-65431]

  • Kit SDK - Python KeyError could occur when merging selection (e.g., Shift+marquee selection in viewport) with Fabric Scene Delegate and omni.kit.manipulator.prim.fabric enabled [OMPE-62302]

  • Kit SDK - Material graph extension did not properly shutdown with unload-all-extensions flag [OMPE-46207]

  • RTX - primVar Color not updating PBR Material with FSD On [OMPE-37056]

  • USD Exchange - CAD Converter error logs are noisy and do not provide clear information when conversion fails due to unsupported or corrupted files [OMPE-64715]

  • USD Exchange - CAD Converter long conversion times with Revit files [OMPE-63428]

  • omni.graph.core - Fixed default value allocation alignment mismatch resulting in undefined behavior. [OMPE-55598]

Improved#

  • CAD Converter - Upgraded libxml2 in omni.kit.converter.hoops_core from 2.12.7 [OMPE-43354]

  • CAD Converter - IFC file conversion performance improved [OMPE-39304]

  • DGN Converter - Added additional tessellation parameters beyond surfaceTolerance, exposing more control from the ODA Drawings SDK [OMPE-59699]

  • DGN Converter - DGN levels with displayed flag set to false are now correctly filtered out during conversion, respecting layer visibility settings [OMPE-55257]

  • Foundation - Upgraded sentry-sdk Python module to 2.29.1. [OMPE-47645]

  • Kit SDK - Updated fastapi from 0.115.7 to 0.117.1 and starlette from 0.45.3 to 0.46.1 in omni.kit.pip_archive [OMPE-72669]

  • Kit SDK - Updated multidict from 6.1.0 to 6.7.0 [OMPE-72443]

  • Kit SDK - Upgraded Pillow library from 11.3.0 to 12.0.0. [OMPE-68805]

  • Kit SDK - Upgraded pycares Python module from 4.8.0 to 4.11.0. [OMPE-65117]

  • Python - Updated SQLite to 3.10.18 [OMPE-64818]

  • omni.kit.pip_archive - Updated aiohttp from 3.11.10 to 3.11.11 [OMPE-65074]

Rendering#

Fixed#

  • RTX - Scenes with a very large number of material instances can crash or display a black screen due to incorrect block buffer allocations [OMPE-73245]

  • RTX - Application crashed on multi-GPU systems when switching from RTX Interactive to RTX Real-Time 2.0 renderer mode [OMPE-68620]

  • RTX - Camera focal length was clamped too aggressively, creating discrepancies with OpenCV pinhole models. [OMPE-68242]

  • RTX - Path tracing accumulation time is slower due to unnecessary OptiX alpha denoising being performed when not needed [OMPE-65288]

  • RTX - Crash when resizing window [OMPE-62871]

  • RTX - Significant performance regression in sequential payload loading. [OMPE-62203]

  • RTX - Camera projection controls did not work when adjusted through the UI (only worked via script). [OMPE-61452]

  • RTX - Visual artifacts appeared on Linux with Vulkan when using Clash Detection extension [OMPE-52613]

Improved#

  • RTX - Updated iray-for-omniverse from 381500.5658a to 381500.5658.3071 [OMPE-72960]

  • RTX - Upgraded XZ Utils from 5.4.5 to 5.8.1. [OMPE-42869]