WLJS 3.1.0 🕹️
Published on July 29, 2026 by Kirill Vasin
Get you copy here https://wljs.io/releases/3.1.0 ✌️
We are happy to announce a new version of WLJS Notebook. Many bugs were fixed and overall stbillity and compatibility with Wolfram Standard Library was significantly improved.
Highlights
We are happy to announce a new version of WLJS Notebook. Many bugs were fixed and overall stbillity and compatibility with Wolfram Standard Library was significantly improved.
Highlights
- Improved compatibility with Wolfram Language 14-15, including new symbols, symbolic arrays, non-commutative algebra, incremental objects, and standard colors.
- Added RPM binaries
- Added rich LaTeX and mixed-content support for plot legends and frame labels.
- Enhanced Sound with piano-roll previews, an improved synthesizer pipeline, and many new instruments.
- Added interactive previews for WL 15 music objects, including notes, pitches, chords, scales, and scores.
- Improved UI and formatting
- Better autocomplete for Greek letters (use ESC key)
- Improved Manipulate, Animate functions
- Added new API for file downloading
Fixed bugs
- Unicode issues in PlotLegends and other elements that rely on the FrontFetch function.
- Context switching issues in mini apps
- Excalidraw widget content corruption
- EdgeForm on Polygon[pts//Offload] breaks after pts update
- Graph objects are not rendered correctly when their size is less than 1 KB.
- Fixed MCP tool kernel_evaluate and summarization issues on nested associations
- Rasterize and PDF export stop working after a kernel restart.
- EmitSound and Speak stop working after a while in the same session.
- Custom windows cannot be made smaller in the desktop version.