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0.31.2

rerun-io/rerun0.31.2Apr 8, 2026by rerun-bot

AI Summary

Version 0.31.2 is a maintenance release focusing on bug fixes for MCAP decoding, UI shape scaling, and spatial queries, along with improvements to the JavaScript web viewer.

Key Highlights

  • Fixed MCAP CLI decoder identifier list
  • Fixed incorrect scaling for UI shapes defined with units
  • Fixed range queries on 3D points in SpatialView3D
  • Added progress bar to rerun-js to handle incomplete WASM downloads
  • Added login setting to rerun-js with a default to hide the login button

New Features

  • Progress bar for rerun-js
  • Login setting for rerun-js

Full Release Notes

[Rerun](https://www.rerun.io/) 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 -U 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/0.31.1/rerun_cpp_sdk.zip

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### 🔎 Details

#### 🪳 Bug fixes
- Fix MCAP CLI decoder identifier list [24f2604](https://github.com/rerun-io/rerun/commit/24f26047da9433924d7a00d7039be18cbe19c9ca)
- Fix bug where shapes defined with UI units were scaled incorrectly [9a28f8e](https://github.com/rerun-io/rerun/commit/9a28f8e089d30680bc14ab59653ca8d7b2e5d308)
- Fix off-by-one bug in video stream cache [e4eddc9](https://github.com/rerun-io/rerun/commit/e4eddc9a1ed798c60ae696e7e605c5a80279db30)
- Fix range queries on 3D points in `SpatialView3D` [213957c](https://github.com/rerun-io/rerun/commit/213957c5cd2dbbb7acfffd894310d7ec58ef7f5e)

#### 📚 Docs
- Fix typo in micro-batching documentation [#12716](https://github.com/rerun-io/rerun/pull/12716) (thanks [@wolfd](https://github.com/wolfd)!)

#### 🕸️ Web
- Add progress bar to rerun-js and handle incomplete wasm downloads [476a178](https://github.com/rerun-io/rerun/commit/476a1780a52cf99b600d51a184e16028a05f6cce)
- Add rerun-js login setting and default to hiding the login button [3203577](https://github.com/rerun-io/rerun/commit/320357798161a7663dea5777bec8d73431585239)

#### 🤷‍ Other
- Stop creating the search index into `docs.rs` [6afa84b](https://github.com/rerun-io/rerun/commit/6afa84bfaf501cacb46cbdf5a63ea626473cd1a1)