0.1.0

Published Oct 30, 2026

Features

• add html.externalLinks and attribute lists for md.headingId (473b5ec)
• add md.headingId, md.strip, html.unwrapImages, html.extractToc, code rules in md.component, file data and ANSI highlighting (f0b05ae)
• add the core processor pipeline with unified's use, data and freeze (4a65027)
• align the bindings' host plugin API and hold it to shared conformance cases (4b8f1ae)
• bootstrap the arena tree, the processor and Markdown to HTML (45afd1e)
• convert HTML to Markdown and add GFM (b708ce7)
• expose the processor in the Node and Python bindings (400a7ab)
• give JavaScript and Python plugins vfile's file and fail runs on a returned error (13a95f4)
• html: add html.highlight on giallo (36501e7)
• html: add html.katex, rendering math as rehype-katex does, natively on katex-rs (ba1264f)
• html: add html.raw and html.format (33700b3)
• html: parse HTML as parse5 and hast-util-from-html do (f0afe97)
• html: run Shiki's notation, meta-highlight and line-number transformers, inline code and color replacements natively in html.highlight (3716429)
• html: sanitize and slug hast (eb083fb)
• html: serialize every hast-util-to-html option (b6c4083)
• let each thread keep up to 256 MB between documents, configurable with setRetainedMemory (5f0e90c)
• let JavaScript and Python plugins join a pipeline as transformers (03244b1)
• make each Rust plugin a struct of its options, replacing the constructor functions (fcf4eb3)
• md: add math, directive, frontmatter and definition list extensions (739178b)
• md: add md.component, turning directives, alerts and nodes into MDX components by rules (3aeebcd)
• md: add md.toc, md.packageCommand and frontmatter data, with github-slugger in core (0581318)
• md: apply unist data and passThrough in md.toHtml and fix parser gaps (3a58dc6)
• md: parse block quotes and lists (2ea6249)
• md: parse character escapes, references, emphasis and hard breaks (912462e)
• md: parse code spans, fenced code and indented code (3770324)
• md: parse setext headings, links, definitions, autolinks and raw HTML (28abcfe)
• md: serialize mdast to Markdown and replace gemoji shortcodes (51d7831)
• mdx: add md.mdx and mdx.compile (e5ad62d)
• prose: add prose parsing, retext plugins and the md and html bridges (8ae05e0)
• python: make process and run synchronous, with aprocess and arun as their coroutines (2a6a963)
• rename the prose domain to nl, with md.toNaturalLanguage and html.toNaturalLanguage (95042ba)

Bug Fixes

• html: export ToNaturalLanguage without the highlight feature (d9d9c84)
• md: match micromark on tabs, laziness, list ends and code spans (4adf21f)
• mdx: add the mdx.compile plugin an ignore rule kept out (1726e83)

Performance Improvements

• md: build trees at exact size and scan escapes with memchr (23e3f93)
• md: halve memory and speed up parsing 1.25–2× (a87fa5b)
• md: parse Markdown in one pass, MDX included (1d05eee)
• md: skip plain text and texts without literals under GFM (fd73efe)
• md: skip plain text in one run and find line ends with memchr (d72f312)
• md: speed up parsing and HTML output 2–3× (6a30a3f)