Development Build

This is a prerelease. It is not intended for production use.
Please report any issues you find.

Example Hosted App

https://rerun.io/viewer/commit/44319ac

Wheels can be installed with:

pip install --pre --no-index -f https://build.rerun.io/commit/44319ac/wheels --upgrade rerun-sdk

or

pip install --pre --no-index -f https://github.com/rerun-io/rerun/releases/download/prerelease --upgrade rerun-sdk

CMake fetch-content for C++ SDK

include(FetchContent)
FetchContent_Declare(rerun_sdk URL https://build.rerun.io/commit/44319ac/rerun_cpp_sdk.zip)
FetchContent_MakeAvailable(rerun_sdk)

or

include(FetchContent)
FetchContent_Declare(rerun_sdk URL https://github.com/rerun-io/rerun/releases/download/prerelease/rerun_cpp_sdk.zip)
FetchContent_MakeAvailable(rerun_sdk)

Web Viewer NPM package

Can be installed with:

npm install https://build.rerun.io/commit/44319ac/rerun_js

0.28.1 - Fix some telemetry settings, depth images, and logging details.

Rerun is an easy-to-use database and visualization toolbox for multimodal and temporal data.
Try it live at https://rerun.io/viewer.

• Python: pip install rerun-sdk
• Rust: cargo add rerun and cargo install rerun-cli --locked
• Online demo: https://rerun.io/viewer
• C++ FetchContent: https://github.com/rerun-io/rerun/releases/download/0.28.1/rerun_cpp_sdk.zip

---

🪵 Log API

• Ensure that flush waits for all data loaders to finish #12281

🪳 Bug fixes

• Fix video errors having black rectangle around them #12284
• Fix RVL depth decoding for non-quantized images #12289

🌁 Viewer improvements

• Fix image planes not working correctly in some named-transform frame scenarios #12276
• Fix auto-size for 2d views with RVL encoded depth image not working #12288
• Restore depth image visualizers to 2D view kind (fix heuristic) #12290
• Add dataloader for encoded depth image (to allow log_from_file & dragdrop) #12287

🤷‍ Other

• Improved error message when rrd compare --unordered fails #12282

0.28.0 - Easier use with ROS style data

Rerun is an easy-to-use database and visualization toolbox for multimodal and temporal data.
Try it live at https://rerun.io/viewer.

• Python: pip install rerun-sdk
• Rust: cargo add rerun and cargo install rerun-cli --locked
• Online demo: https://rerun.io/viewer
• C++ FetchContent: https://github.com/rerun-io/rerun/releases/download/0.28.0/rerun_cpp_sdk.zip

---

🧳 Migration guide

✨ Overview & highlights

🦾 Transform system overhaul

This release brings significant improvements to how transforms are handled, especially from ROS or MCAP-based systems. You can now decouple spatial relationships from entity paths by using CoordinateFrame to associate entities with named frames, and Transform3D with child_frame/parent_frame parameters to define relationships between frames—similar to ROS tf2. Pinhole cameras also support this system. Additionally, axis visualization has moved to its own TransformAxes3D archetype.

Much more can be found at our revamped docs page here.

🤖 Improved URDF and MCAP Transform support

Parent and child frame components are now available in the Transform3D archetype, meaning you can send transforms to a single entity instead of using the entity path to inform the structure (note, for URDFs this is required). Additionally, ROS2’s tf2_msgs/TFMessage and PoseStamped messages are automatically parsed as Transform3D and InstancePoses3D , respectively, from MCAP files.

We also added a new documentation page for URDF here.

robots.with.transforms.mp4

📹 AV1 video codec support for streaming

VideoStream now supports the AV1 codec alongside existing formats.

📚 Catalog API refinements (Python)

The Python catalog API has been substantially reworked: "partition" terminology is now "segment," table operations have moved to TableEntry objects, and the query interface has been simplified with methods like filter_segments(), filter_contents(), and reader().

⌚ Viewer usability improvements

New keyboard shortcuts let you switch between recordings (cmd + option + ↑/↓) and navigate the timeline (←/→ to move by 0.1s. Add shift for 1s. home/end to jump to beginning or end).

timeline-hotkeys.mp4

Forward/back navigation was previously exclusive to the web viewer and is now available on native viewers as well!

📂 Added a LeRobot v3 dataloader support

We previously supported LeRobot v2 and updated our dataloader now to work with the latest version as well!

⚠️ Breaking changes

🧳 Migration guide: https://rerun.io/docs/reference/migration/migration-0-28

Transactional transform behavior (important!):
Changes to Transform3D, InstancePose3D, or Pinhole transform properties are now treated transactionally. Updating any component resets all other transform components—the viewer no longer looks back in time for previously logged values. If you relied on partial updates (e.g., logging only rotation while keeping a previous translation), you must now re-log all components together. If you always logged the same components on every call or used the standard constructors, no changes are needed. #11911

rr.log("simple", rr.Transform3D(translation=[1.0, 2.0, 3.0]))
# In 0.27: This clears the translation—it will NOT inherit the previous value
rr.log("simple", rr.Transform3D.from_fields(scale=2))

Transform3D archetype changes:

• Transform3D::axis_length has moved to the new TransformAxes3D archetype #11925
• CoordinateFrame::frame_id renamed to CoordinateFrame::frame #11991
• Redundant Pose* component types removed in favor of general counterparts (e.g., PoseTranslation3D → Translation3D) #11905

URDF loader changes:
Transform updates for URDF models now require parent_frame and child_frame fields to be set (matching URDF joint specifications), and must include both rotation and translation. This aligns with ROS tf2 conventions and allows sending all transform updates on a single entity. #12005

Deprecated API removal:
Items marked deprecated before 0.27 have been removed, including old Timeline, TimeColumn, Asset3D, AssetVideo, Image, and Pinhole methods. #12204

MCAP timeline naming:
MCAP timelines renamed from log_time/publish_time to message_log_time/message_publish_time to avoid conflicts with SDK timestamps. #12145

Python Catalog API (breaking changes):

• The rerun_partition_id column is now rerun_segment_id
• entries(), datasets(), tables() now return lists of entry objects instead of DataFrames
• get_table() returns a TableEntry object instead of a DataFrame—use .reader() to get the DataFrame
• DataframeQueryView removed; use filter_segments(), filter_contents(), and reader() instead #12151
• register() and register_batch() merged into single register() returning RegistrationHandle #12187
• search_fts() and search_vector() now return DataFrames directly (no .df() needed) #12198

Python Catalog API (deprecated, still work):

• "Partition" renamed to "segment" throughout (e.g., partition_table() → segment_table()) #12059
• Method renames: get_dataset_entry → get_dataset, get_table_entry → get_table, etc. #12112
• Table writes moved from CatalogClient to TableEntry (append(), overwrite(), upsert()) #12114
• Schema types moved from rerun.dataframe to rerun.catalog #12135
• Search index methods renamed: create_fts_index() → create_fts_search_index(), etc. #12198

🔎 Details

🪵 Log API

• Transform3D no longer sets all its components to empty array by default #11911
• Move Transform3D::axis_length into its own TransformAxes3D archetype #11925
• Add show_frame option on TransformAxes3D #11977
• Rename CoordinateFrame::frame_id to CoordinateFrame::frame #11991
• RRD footers 1: framing #12044
• RRD footers 2: RRD manifests #12047
• RRD footers 3: encoding/decoding manifests #12048
• Add option to specify target_frame to SpatialInformation #12040
• Remove redundant Pose* components #11905
• Add OutputMode option to Lenses #12107
• Load URDF with frame IDs and named transforms #12005
• RRD manifests: implement chunk_byte_size_uncompressed support #12194
• Disable merging compaction for video samples #12270

🌊 C++ API

• Make component type registration thread-safe in C++ SDK #11907
• Don't install signal handlers into rerun_c outside of DEBUG mode #11956

🐍 Python API

• Fix dataframe queries failing on empty datasets #11846
• Add lint to check if rust classes have str, fix or exclude all existing #11928
• Partition-to-segment rename (wave 1): redap layer #12017
• Partition-to-segment rename (wave 3): Python SDK #12059
• Rework notebook auth to use device code flow #12128
• Catalog API update 1: listing entries #12103
• Catalog API update 2: getting and creating entries #12112
• Catalog API update 3: editing tables #12114
• Catalog API update 4: schema #12135
• Catalog API update 5: dataset query #12151
• Catalog API update 6: register APIs #12187
• Catalog API update 7: segment_table and blueprint APIs #12191
• Catalog API update 8: search indexes #12198
• Remove items marked as deprecated before 0.27 #12204
• [python] Automatically disconnected recordings when they go ful...

0.27.3

Rerun is an easy-to-use database and visualization toolbox for multimodal and temporal data.
Try it live at https://rerun.io/viewer.

• Python: pip install rerun-sdk
• Rust: cargo add rerun and cargo install rerun-cli --locked
• Online demo: https://rerun.io/viewer
• C++ FetchContent: https://github.com/rerun-io/rerun/releases/download/0.27.2/rerun_cpp_sdk.zip

---

🔎 Details

🌊 C++ API

• Make component type registration thread-safe in C++ SDK #11907
• Don't install signal handlers into rerun_c outside of DEBUG mode #11956

🐍 Python API

• Rework notebook auth to use device code flow #12128

🪳 Bug fixes

• Fix the visible time range for the time series view #11938
• Fix opening non-recording URLs on startup #11981

🗄️ OSS server

• Expose /version from oss server #12108

🤷‍ Other

• Add crate linkage delete user logging from future f7df67196c6844369f91a23ac4bbb14002ee6b05

0.27.2 - Fix compatibility with dependency

Rerun is an easy-to-use database and visualization toolbox for multimodal and temporal data.
Try it live at https://rerun.io/viewer.

• Python: pip install rerun-sdk
• Rust: cargo add rerun and cargo install rerun-cli --locked
• Online demo: https://rerun.io/viewer
• C++ FetchContent: https://github.com/rerun-io/rerun/releases/download/0.27.2/rerun_cpp_sdk.zip

---

• Fix non semver compliant breaking changes in ply-rs breaking Rust builds #11890

0.27.1 - Bug fixes and performance improvements

Rerun is an easy-to-use database and visualization toolbox for multimodal and temporal data.
Try it live at https://rerun.io/viewer.

• Python: pip install rerun-sdk
• Rust: cargo add rerun and cargo install rerun-cli --locked
• Online demo: https://rerun.io/viewer
• C++ FetchContent: https://github.com/rerun-io/rerun/releases/download/0.27.1/rerun_cpp_sdk.zip

---

🪳 Bug fixes

• Respect timepoint in URDF loader #11866
• Fix pinhole color fallback showing the wrong color #11861
• Fix broken delete_entries and entries table not updated #11872
• Don't smooth velocity after WASD input #11858
• URDF loader: Use global material if inline material is absent #11869

🚀 Performance improvements

• When closing recordings (and blueprints), drop them on separate threads for UI responsiveness #11834 (thanks @kpreid!)
• Remove frame lag when creating loop region #11862
• Reverted #11766 because of performance issues with the time panel.

0.27.0 - Viewer improvements and more blueprint configuration

Rerun is an easy-to-use database and visualization toolbox for multimodal and temporal data.
Try it live at https://rerun.io/viewer.

• Python: pip install rerun-sdk
• Rust: cargo add rerun and cargo install rerun-cli --locked
• Online demo: https://rerun.io/viewer
• C++ FetchContent: https://github.com/rerun-io/rerun/releases/download/0.27.0/rerun_cpp_sdk.zip

---

• 🧳 Migration guide

✨ Overview & highlights

🟦 more properties configurable from blueprint

The viewer is now even more configurable via blueprints. With more options for time series, bar chart, graph views, time panel, and the 3D view. With the latter now having the option to control the 3D eye position and look target.

⌨🖱️User Interface improvements

We’ve changed the interaction of the time panel! Now the top bar is only for making selections, while the bottom panel is for moving the time cursor. Hold down shift for snap-to-grid! You can also click on events now to select them.

new-time-panel-interaction.mp4

You can now also use just a keyboard to navigate in panels with trees (blueprint / streams / recordings).

⚠️ Breaking changes

• Dropped support for python 3.9, and the minimum supported version is now 3.10.
• Official Intel (x86) macOS binaries are no longer provided (compiling from source is still possible).
• Removed the option to specify the current time cursor via Blueprint.

See the
🧳 Migration guide for more details.

🔎 Details

🪵 Log API

• Functionality to add_time_column via lenses #11596

🌊 C++ API

• CMake: Download Arrow from Tarball URL Instead of Git #11558 (thanks @threeal!)
• Fix in-repo CMake build not resolving builds of rerun_c that weren't made with pixi #11751

🐍 Python API

• Expose view container visibility in python blueprint api #11602
• Drop Python 3.9 Support #11426
• Try to avoid timestamp footguns #11601
• py-sdk: add register_prefix SDK call #11600
• [Python] Improve errors in mesh3d_ext #11662 (thanks @iwanders!)
• Return optional DebugInfo with memory_used as part of CreateIndexResponse #11691
• Add a new target_partition_num_rows API parameter to the CreateIndex API #11686
• Add Ability to Launch OSS Server From Python #11689
• Our IndexValuesLike type is overly strict. Allow np.datetime64 inputs #11721
• Add play state, loop mode and loop selection to blueprint #11664
• Index management APIs: Python bindings, types cleanup, and index statistics #11729
• Remove time from blueprint #11823

🦀 Rust API

• Make Debug for Utf8 datatype derived component types readable #11780

🪳 Bug fixes

• Fix handling of components that only vary by descriptors #11593
• Fix selection panel infinite redraw #11623
• Allow editing times in the time panel #11774
• Allow moving text cursor while holding down options/alt #11773
• Fix 3D eye speed-up modifier not working with scroll-to-zoom #11814

🌁 Viewer improvements

• Background of graph view is now blueprint configurable #11522
• Enable multiple instance poses for Points3D #11572
• Disable toast when copying component path #11495
• Add cyclic colormap #11498
• Allow eye-camera tracking arbitrary entities in 3D view #11554 (thanks @Gentlegg!)
• Introduce experimental CoordinateFrame archetype #11674
• Add experimental child_frame & parent_frame to Transform3D #11730
• Expose TimeSeries time range & zoom in the Blueprint API #11621
• Improve data density visualization by sampling dense chunks #11766
• 3D eye position and other properties in blueprint #11788
• Support arbitrary transform frame based hierarchies, fully independent of entity hierarchy #11790
• Removing time selection with context menu #11845

🗄️ OSS server

• Add support for layers in OSS server #11532
• Add support for properties in OSS server #11630
• Simplify CreateIndexRequest #11636
• Improve column projection specification and implement it for OSS server #11687
• Index management APIs #11693
• Add support for blueprint dataset #11758
• Add support for renaming entries #11777

🚀 Performance improvements

• Perform transform tree walk only once per frame, rather than for every View #11470
• Significantly improve transform ingestion speed #11655
• Update mimalloc allocator from v2 to v3 #11703
• Small performance improvement for many entities #11720 (thanks @joelreymont!)

🧑‍🏫 Examples

• Create and write tables in the Rerun server #11694

📚 Docs

• Clarify that 0B memory limit for grpc server only makes sense if client/server are connected from the start #11599
• Add documentation to dataframe query workflow and fix api rendering for bindings #11650
• Expose all the python apis I could find for web docs #11709
• Reorganize Docs Overview / Getting Started #11781

🖼 UI improvements

• Fix blueprint / streams tree navigation ignoring focus #11574
• Keyboard navigation in tree UIs (left panel, streams panel, etc.) #11595
• Improve formatting of durations and timestamps #11659
• When scrubbing time, intelligently round to a nice value #11658
• Hold down shift for snap to grid when moving time cursor #11757
• Time panel: pick sub-second precision based on zoom level #11761
• Change how to select loop region in the time panel #11675
• Click events in the streams view [#11806](https://github.com/rerun-io/rerun/pu...

0.27.0-alpha.7

✨ Highlights

• Many new view properties settable from blueprints
• Enable multiple instance poses for Points3D
• Allow eye-tracking camera to follow arbitrary entity
• Keyboard navigation in all tree UIs
• Improved OSS server with support for layers, properties and column projections
• OSS server accessible from Python

⚠️ Breaking changes

• Dropped support for Python 3.9

🧳 Migration guide: https://github.com/rerun-io/rerun/blob/0.27.0-alpha.7/docs/content/reference/migration/migration-0-27.md

🪵 Log API

• Functionality to add_time_column via lenses #11596

🌊 C++ API

• CMake: Download Arrow from Tarball URL Instead of Git #11558 (thanks @threeal!)

🐍 Python API

• Expose view container visibility in python blueprint api #11602
• Drop Python 3.9 Support #11426
• Try to avoid timestamp footguns #11601
• py-sdk: add register_prefix SDK call #11600
• Improve errors in mesh3d_ext #11662 (thanks @iwanders!)
• Return optional DebugInfo with memory_used as part of CreateIndexResponse #11691
• Add a new target_partition_num_rows API parameter to the CreateIndex API #11686
• Add Ability to Launch OSS Server From Python #11689
• Our IndexValuesLike type is overly strict. Allow np.datetime64 inputs #11721
• Add play state, loop mode and loop selection to blueprint #11664

🪳 Bug fixes

• Fix handling of components that only vary by descriptors #11593
• Fix selection panel infinite redraw #11623

🌁 Viewer improvements

• Background of graph view is now blueprint configurable #11522
• Enable multiple instance poses for Points3D #11572
• Disable toast when copying component path #11495
• Add cyclic colormap #11498
• Allow eye-camera tracking arbitrary entities in 3D view #11554 (thanks @Gentlegg!)
• Introduce experimental CoordinateFrame archetype #11674

🗄️ OSS server

• Add support for layers in OSS server #11532
• Add support for properties in OSS server #11630
• Simplify CreateIndexRequest #11636
• Improve column projection specification and implement it for OSS server #11687

🚀 Performance improvements

• Perform transform tree walk only once per frame, rather than for every View #11470
• Significantly improve transform ingestion speed #11655
• Update mimalloc allocator from v2 to v3 #11703

📚 Docs

• Clarify that 0B memory limit for grpc server only makes sense if client/server are connected from the start #11599
• Add documentation to dataframe query workflow and fix api rendering for bindings #11650

🖼 UI improvements

• Fix blueprint / streams tree navigation ignoring focus #11574
• Keyboard navigation in tree UIs (left panel, streams panel, etc.) #11595
• Improve formatting of durations and timestamps #11659
• When scrubbing time, intelligently round to a nice value #11658

🤷‍ Other

• Add client object table writing functions #11657

0.26.2

Rerun is an easy-to-use database and visualization toolbox for multimodal and temporal data.
Try it live at https://rerun.io/viewer.

• Python: pip install rerun-sdk
• Rust: cargo add rerun and cargo install rerun-cli --locked
• Online demo: https://rerun.io/viewer
• C++ FetchContent: https://github.com/rerun-io/rerun/releases/download/0.26.2/rerun_cpp_sdk.zip

---

• Add missing line_radii and fill_mode params to Capsules3D in Python SDK #11660 (thanks @yunho-c!)
• Fix pressing the play button sometimes going to follow mode #11609
• Fix hiding all tabs in a tab-view breaking undo #11619
• Fix color picker on default & override disappearing when trying to edit #11651
• Fix ViewerEvent::TimeUpdate viewer callback not emitted during playback #11639

0.26.1

Rerun is an easy-to-use database and visualization toolbox for multimodal and temporal data.
Try it live at https://rerun.io/viewer.

• Python: pip install rerun-sdk
• Rust: cargo add rerun and cargo install rerun-cli --locked
• Online demo: https://rerun.io/viewer
• C++ FetchContent: https://github.com/rerun-io/rerun/releases/download/0.26.1/rerun_cpp_sdk.zip

---

• Fix cargo install rerun-cli requiring protoc on PATH #11592
• Switch to newly received recordings even if SetStoreInfo message is missing #11568