Changelog

All notable changes to this playground will be documented in this file.

The format is loosely based on Keep a Changelog.

[0.1.0] - 2026-03-10

First tagged release of the browser playground.

Release validation via tools/check_release.py.
Example executability validation via tools/check_examples.py and GitHub Actions in .github/workflows/example-executability.yml.
Keyboard-accessible output tabs and split-pane resizing.
Release process documentation in RELEASE.md and contribution guidance in CONTRIBUTING.md.

Aligned the playground with multilingualprogramming 0.6.0.
Highlighted broader browser-facing WAT/WASM coverage for classes, control flow, async features, properties, and bytes literals.
Kept the page shell in index.html and organized the client logic across assets/main.js, assets/editor.js, assets/runtime.js, assets/ui.js, and assets/examples.js.
Improved keyboard focus handling, live status announcements, and narrow-screen behavior.
Normalized source comments and visible UI copy to reduce encoding-risky decorative characters.

Reduced maintenance risk from a monolithic inline HTML document.
Tightened metadata consistency checks across sitemap, manifest, robots, and canonical page metadata.
Corrected shipped example programs so the bundled corpus executes cleanly across all 17 supported languages.

Updated the playground's complete-feature example links and visible source-extension copy from .ml to .multi to match the renamed upstream example files.
Migrated the browser editor from CodeMirror 5 to Monaco Editor while preserving the existing Pyodide runtime flow, share links, theme toggle, keyboard shortcuts, and split-pane behavior.
Pinned browser syntax highlighting to tree-sitter-multilingual by shipping a generated assets/monarch.json tokenizer artifact from the grammar repository.
Updated the existing CI workflows to check out multilingualprogramming/tree-sitter-multilingual and fail if the pinned Monaco tokenizer drifts from the generated upstream artifact.