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0.43

New features

Pan and zoom in the tensor view

The tensor view now supports pan and zoom, with the same controls as the 2D view: drag or scroll to pan, zoom with the scroll modifier or a pinch, and double-click to reset. The visible region is stored in the new visual_bounds view property, so it can also be set from the SDK. It is reset to the whole slice when the dimensions shown as width or height change, or when the view fit changes.

Edit grid and volume placement and voxel size in the viewer

You can now edit the translation of GridMap, VoxelGridMap, and Volume3D in the viewer, and adjust voxel size for VoxelGridMap and Volume3D.

Other

  • Blueprint edits are remembered per blueprint: The native viewer now remembers your edits to a dataset's default blueprint separately from your edits to other blueprints, so switching between them keeps both sets of changes. A blueprint you haven't edited shows the version the server had when you first opened a segment of the dataset. All segments of a dataset share that blueprint. Blueprint edits saved by earlier versions of the viewer are kept.
  • Stay on the current recording while new ones stream in: With "Switch to newly streamed recordings" turned off in the settings, a recording that streams in from an SDK is added to the recordings panel instead of replacing the one you are looking at.
  • Experimental: read the selection over ViewerControl: ViewerClient.get_selection() in Python, WebViewer.getSelection() in JavaScript, and the rerun_get_selection MCP tool report what the user has selected in the Viewer: entities and instances, components, views, containers, and recordings. ViewerClient is part of rerun.experimental and may change in future releases.
  • rerun.catalog.TimelineKind: TimelineInfo.kind is now a rerun.catalog.TimelineKind enum, which maps to and from the Arrow datatype of the timeline's index column with kind.datatype and TimelineKind.from_datatype(…). It is a string enum, so comparisons such as kind == "sequence" keep working.
  • Memory limits respect cgroup limits on Linux: On Linux, the default memory limits and percentage limits such as --memory-limit 50% are now a fraction of the process's cgroup memory limit, rather than full machine memory. This is particularly useful when running inside of a container.

Breaking changes

JavaScript API uses camelCase

The JavaScript viewer API now uses camelCase names. Previously released snake_case methods, options, and returned fields remain available as deprecated aliases. These aliases will be removed in a future release.

Before:

await viewer.set_time({ play_state: "paused" });
const recording = (await viewer.get_state()).active_store_id;

After:

await viewer.setTime({ playState: "paused" });
const recording = (await viewer.getState()).activeStoreId;

object_store_config renamed to storage_location

In DatasetEntry.register(), replace object_store_config with storage_location; the old keyword still works with a deprecation warning. Supplying both keywords raises ValueError, even if their values match. Invalid storage location aliases now raise ValueError.

Looking for an older release? See the migration guides for 0.33 and earlier.