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Changelog

Here is the full history of mistune v3.

Unreleased

Version 3.3.4

Released on Jul 22, 2026

  • Harden inline parsing against deeply nested and adversarial link, image, emphasis, formatting, math, and reference inputs.
  • Improve performance for repeated link suffixes, dense emphasis, unclosed formatting markers, inline spoilers, and adjacent ruby tokens.
  • Refactor the inline parser into dedicated emphasis and link modules.
  • Escape literal */_ emphasis markers in the Markdown renderer so round-tripping escaped text does not re-introduce emphasis.

Version 3.3.3

Released on Jul 9, 2026

  • Limit deeply nested emphasis and image parsing to avoid RecursionError.
  • Fix repeated link suffix and unclosed formatting marker performance issues.
  • Fix unclosed inline spoiler performance issues.
  • Avoid recursive parsing for adjacent ruby tokens.
  • Speed up footnote reference indexing.

Version 3.3.2

Released on Jun 23, 2026

  • Fix Python 3.8 import compatibility in the inline parser.
  • Fix mypy compatibility for list parsing on Python 3.8 and 3.9+.

Version 3.3.1

Released on Jun 22, 2026

  • Fix abbr plugin compatibility with escaped inline text.
  • Normalize included Markdown line endings before parsing directives.

Version 3.3.0

Released on Jun 21, 2026

  • Improve CommonMark compatibility and parser performance.
  • Add command line entrypoint with UTF-8 output.
  • Support display and backtick math.
  • Render plugin list and table nodes in Markdown renderer.
  • Escape leading block markers in Markdown renderer.
  • Fix RST renderer for block quotes nested in lists.
  • Avoid generated heading ID collisions in TOC.
  • Harden URL, image, figure, and include directive handling.
  • Fix quadratic scans in inline links, reference links, and formatting markers.
  • Fix math escaping, currency pattern matching, and cross-line matching.

Version 3.2.1

Released on May 3, 2026

  • Escape link in render_toc_ul.
  • Escape text in math plugin.
  • Fix regex for math plugin.
  • Escape heading's ID attribute.
  • Fix LINK_TITLE_RE to prevent DoS.
  • Escape class attribute for admonition directive.
  • Remove double-encoding of image alt text.
  • Escape class attribute for image directive.
  • Fix width/height attribute for image directive.

Version 3.2.0

Released on Dec 23, 2025

  • Announce supports for python 3.14
  • Fix footnotes plugins for code blocks, ref links, blockquote and etc.
  • Fix ref links in TOC.

Version 3.1.4

Released on Aug 29, 2025

  • Add fenced directive break rule in list parser.
  • Prevent removing unicode whitespace when parsing atx heading.

Version 3.1.3

Released on Mar 19, 2025

  • Announce supports for python 3.12 and 3.13

Version 3.1.2

Released on Feb 19, 2025

  • Fix footnotes plugin for AST renderer

Version 3.1.1

Released on Jan 28, 2025

  • Fix render_toc_ul method for empty iterable
  • Fix ruby plugin's regex pattern and HTML rendering

Version 3.1.0

Released on Dec 30, 2024

  • Fix only HTML-escape URLs when rendering to HTML
  • Add block_quote prefix on empty lines too

Version 3.0.2

Released on Sep 30, 2023

  • Fix list parser to avoid RecursionError

Version 3.0.1

Released on Jun 10, 2023

  • Add py.typed for mypy
  • Add tests, docs for sdist
  • Support renderer="ast" for rendering AST

Version 3.0.0

Released on Jun 08, 2023

  • Do not strip leading unicode spaces like emsp
  • Ensure new line at end of the text

Version 3.0.0rc5

Released on Mar 22, 2023

  • Fix fenced directives
  • Fix inline link parser
  • Fix block math plugin for multiple lines
  • Fix empty list item for markdown renderer

Version 3.0.0rc4

Released on Nov 30, 2022

  • Fix plugin footnotes when there is no newline at the end
  • Move safe HTML entities to HTMLRenderer
  • Redesign directives parsing
  • Add Image and Figure directive

Version 3.0.0rc3

Released on Nov 25, 2022

  • Render inline math with \( and \)
  • Added RSTRenderer, and MarkdownRenderer
  • Fix toc_hook method
  • Breaking change, rename RstDirective to RSTDirective

Version 3.0.0rc2

Released on Nov 6, 2022

  • Add spoiler plugin
  • Add collapse option for TableOfContents directive
  • Breaking change on directive design, added fenced directive

Version 3.0.0rc1

Released on Sep 26, 2022

  • Add superscript plugin

Version 3.0.0a3

Released on Jul 14, 2022

  • Fix ruby plugin
  • Change toc parameter depth to level

Version 3.0.0a2

Released on Jul 13, 2022

  • Escape block code in HTMLRenderer
  • Fix parsing links

Version 3.0.0a1

Released on Jul 12, 2022

This is the first release of v3. Features included:

  • redesigned mistune
  • plugins
  • directives