WLJS 3.0.5 is out 🪴
Published on May 14, 2026 by Kirill Vasin
This is the largest update for the last 2 years
Human-, LLM- and Git-friendly .wln format
This release introduces a new minimal .wln notebook format designed to be readable by humans, easy for LLMs to parse, and much friendlier to Git diffs. It uses simple YAML-like headers, while cell contents remain valid Wolfram Language expressions.
Older .wln notebooks remain fully supported.
- Hot-reloading when notebooks are modified outside WLJS Notebook
- Built-in AI Copilot removed in favor of external tools
- New MCP server for Claude, Codex, and other coding agents
- Updated wljs CLI
- “Ask community” helper for creating GitHub Discussions posts
- New InputColor UI element
- HTMLView support for native image embedding
- TeXView live updates and ImageSize option
- Improved project-to-window behavior with copied HTML / JS outputs
- Image3D color support and Offload updates
- Added missing size argument to Inset
- Kernel connection stability improvements via WTSP + shared memory