Release Notes — Version 26.02#

March 2026#

Core Improvements

  • Visibility guided MCMC losses: Added a visibility mask for Gaussians to improve scaling for MCMC-related scale and density losses. This particularly improves highway and large-extent scenes when using the MCMC strategy.

  • Asset Harvester Model Update: Upgraded base Asset Harvester models to newer versions.

  • Asset Harvester Pipeline Integration: New models in the pipeline: Sana Multiview Diffusion, TokenGS 3D lifting, and enhanced Mask2Former (more object classes).

  • gRPC get_server_config: New get_server_config endpoint returns current server configuration as a string key-value map for detecting defaults or parameter mismatches.

  • gRPC Batch RGB Rendering: New batch_render_rgb endpoint to render multiple cameras in one request (common setup once, then sequential per-camera render; helper ready for future parallelization). New protobuf messages: BatchRGBRenderRequest, BatchRGBRenderReturn and item types; per-camera error handling.

  • gRPC Error Handling: Structured gRPC error codes and descriptive messages.

  • Forward Rendering: Rendering by any means, including the render command and the gRPC API, now supports on-demand upgrades to an asset’s checkpoint and config, so a separate upgrade step is not required. This is supported by more robust backwards-compatibility testing.

Bug Fixes

  • GaussiansRenderReturn IndexError: Added scene-level fields to GaussiansRenderReturn to avoid IndexError for non-ray based data (e.g. LiDAR visibility mask).

  • Asset Harvester Timestamp Mismatch: Fixed timestamp mismatch assertion in asset harvester.

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