1.19

• Added markdeep.generateMarkdownTable()/generate_markdown_table() API for programmatic Markdown table generation
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• Added support for code fences with no space before the optional language specifier
• Added starship.js 60th anniversary sci-fi template
• Added markdeep.headerAnchor() and markdeep.definitionAnchor() functions to the JavaScript API for programmatic anchor generation
• Added Python module markdeep.py with header_anchor() and definition_anchor() functions
• Added support for escaping HTML script tags in markdown code examples
• Added support for code fences inside blockquotes
• Added support for ordered checklists: 1. [x] and 1. [ ] syntax for numbered task lists with checkboxes
• Added llms.txt machine-readable syntax reference for LLM coding agents such as Claude, Gemini, GPT, llama, etc.
• Added support for CommonMark hard line breaks: trailing \ or two trailing spaces insert BR tags. Controlled by enableBackslashLineBreak (does not merge with paragraph break) and enableHiddenLineBreak options (merges with paragraph break)
• Added support for stage directions syntax ((text)) for screenplays and theatre scripts, with block-level and inline rendering. Controlled by enableStageDirections option (default: true)
• Changed inline code to use white-space:pre instead of white-space:pre-wrap
• Fixed parsing of tables with HTML space entities in them
• Fixed fancy quote regex matching double-quoted strings inside blockquote code fences
• Fixed dimensions pattern (x → ×) to avoid false positives on alphanumeric IDs and hexadecimal values (e.g., NukYS1x75u8D, 0xDEADBEEF no longer converted)
• Fixed regressions in 1.18:
• Fence parsing bug where fence markers could be incorrectly matched as language specifiers
• Checkbox parsing bug where [ ] checkboxes were not recognized in streamlined format
• ATX header parsing with optional end of line markers
• Image grids with trailing newlines
• HTML code blocks formatting
• Nested lists with wrapped content breaking into separate lists
• Excess floating/wrapped images
• Occasional broken table captions

1.18

• Improved support for Cursor and Windsurf editors
• Performance optimization for processing very long URLs and images
• Support for agentic workflows using Claude, Gemini, Qwen, GPT, SWE, and Falcon LLMs
• Upgraded to MathJax 3, version 3.2.2 for Latex processing
• Upgraded to highlight.js 11.11.1 for code syntax highlighting
• Included the mathtools package in MathJax by default
• Added support for escaped square brackets in hyperlink text
• Added contextMenu option
• Added h1TitleInput option
• Added h1TitleOutput option
• Fixed diagram captions without references rendering with extranous surrounding brackets
• More aggressive list detection to work with more pre-existing markdown documents
• Definition lists now create anchors to support direct deep linking
• Optional link previews
• Autodetect code fence ASCII art diagrams
• Fix: figure reference links now scrolling figure top instead of caption
• New 10th anniversary website

1.17

• Support for correct link targets when a Markdeep document is embedded inline within an iframe srcdoc
• Overloaded API link definitions now have unique hash URLs for each instance
• Made linkAPIDefinitions: true the default behavior
• Added wgsl to language highlighting options
• Added support for URL-shortened YouTube videos that contain ?si= querries
• Made slate.css template contents sidebar disappear on narrow displays
• Header rows now scroll down with contents on long tables
• Updated to highlight.js 11.9

1.16

• Added attrib and attrib-url parameters for images to create inset copyright statements.
• Allowed a single newline between a number and degrees for angle formatting.
• Added tocDepth global option.
• Applied corrections by Orestes Mas to the Catalan translation.
• Documented the supported localizations.
• Added SML and Julia syntax highlighting for code blocks.
• Fixed single-row image grids and image grids with a partial last row lay out correctly (Linwan Song)
• Fixed unnumbered level 3 through 6 section header formatting.
• Fixed processing of documents contained entirely in "preformatted" script blocks.

1.15

Many of the changes in this version are due to Linwan Song.

• Added support for Standard ML (sml) language syntax highlighting.
• Updated to highlight.js version 11.6.0.
• Updated PyxlScript syntax highlighting rules.
• Patches for unclosed HTML tags.
• Support for single-column image grids.
• Support for YouTube videos with timestamps.
• Fixes for Diagram captions

Version 1.14

2022-06-29 Version 1.14

• Reenabled minification (thanks to Linwan Song). Download size decreased from 354k to 212k, before gzip.
• Fixed Czech language code to cs.

2021-10-03 Version 1.13

• Improved calendar localization and robustness.
• Tweaked admonition icon layout on Firefix.
• Clarified that images are always linked by default and added markdeepOptions.autoLinkOptions.
• Changed the escaping method for <script>/<style>/<link> tags in the Markdeep demo to make all examples copyable.
• Fixed syntax highlighting of multi-line code elements features such as block comments and strings.
• Fixed title processing to allow HTML tags (<br> can be especially useful).
• Fixed PyxlScript syntax highlighting for functions with digits in the name.
• Fixed parsing of HTML comments to exactly follow the specification and allow comments with no whitespace in them.