2.16.0

Development:

• Add support for strike-throughs, subscripts, superscripts, and fancy lists. (#149, #160, #162, #168, #170)
• Add facade in front of expl3 inferface for YAML metadata. (#118, #175)
• Add \setupmarkdown and \inputmarkdown commands to ConTeXt. (#17, #176)

Fixes:

• Make any ASCII character escapable as per CommonMark. (#163)
• Make our implementation of header attributes compatible with jgm/lunamark. (#164, #177)

Documentation:

• Add file CHANGES.md with the changelog of the Markdown package.
• Add badges for Matrix.org and Discord chat spaces. (2f1104d..acdc989)
• Add a link to @xvrabcov's TUG 2022 talk, slides, and example documents to the README. (d422f5c)

Proposals:

• Propose support for user-defined syntax extensions. (#172, #174)

Continuous Integration:

• Ignore changes to **/README.md. (e39a7aa)

2.15.4

Fixes:

• In parsers.specialchar, only include special characters of enabled syntax extensions. (#150, #152)
• Avoid nesting \markdownIfOption. (#151)
• Make the \markdownSetup and \markdownSetupSnippet commands accept \par tokens. (#130)

Deprecation:

• Deprecate TeX Live 2019. (5c861e3)

Refactoring:

• Replace xstring with l3str. (contributed by @drehak, #96, #153)
• Replace keyval with l3keys (contributed by @drehak, #96, #155, #157)

Continuous Integration:

• Add Luacheck. (#154)

2.15.3

Refactoring:

• Add a mechanism for extending the Markdown reader and the LaTeX writer. (#138, #143)
• Separate the Lua shell escape bridge into the lt3luabridge package. (#140, #141)
• Add further reflection capabilities. (#124, #137)

Contributed Software:

• Update contributions/book-templates. (contributed by @xvrabcov, b4d892c, a6d5c77)

Deprecation:

• The \markdownOptionHelperScriptFileName command will be removed in Markdown 3.0.0. (#141)
• The \markdownOptionOutputTempFileName command will be removed in Markdown 3.0.0. (#141)
• The \markdownOptionErrorTempFileName command will be removed in Markdown 3.0.0. (#141)
• The \markdownMode command will be removed in Markdown 3.0.0. (#141)

Docker:

• Remove latest-with-cache tag from Docker images. (04301f0)

Documentation:

• Remove disfunctional badges for Docker from README.md. (ad00b58, 707cad9)
• Link to TUG's version of the TUG 2021 video in README.md. (1462411)

Miscellaneous:

• As of today, Markdown has 234 stars, 56 forks, and 7 watchers on GitHub. 🥂

2.15.2

Documentation:

• Document that no eagerCache makes recursive nesting undefined behavior. (a486b88)
• Fix typos in the documentation. (03a172a, ab3ad8d)

Contributed Software:

• Update contributions/book-templates. (contributed by @xvrabcov, 8c56288, 78af2fd, b238dbc)
• Update contributions/pandoc-to-markdown. (contributed by @drehak, 7cc7edc, 2e7ccfe)
• List @TeXhackse's document templates in contributions/README.md.

Continuous Integration:

• Fix a typo in Makefile that made it impossible to recover from pkgcheck errors. (33c8c99)

2.15.1

Fixes:

• Only let LaTeX's default link renderer prototype produce \ref for relative autolinks (discovered by @drehak, 7f3fd9b, #127)
• Ensure that cacheDir exists in witiko/graphicx/http LaTeX theme. (discovered by @drehak, 5145954, #128)

Documentation:

• Fix a typo in the documentation. (5e3b149)
• Add a link to a preprint from TUGboat 43(1) to the README. (authored by @Witiko, @drehak, @michal-h21, and @xvrabcov, 7d47780, e9c7bfc)
• Only use the emoji package in TeX Live 2020 and later. (a46ffd2..a8e5838)

Contributed Software:

• Update contributions/book-templates. (contributed by @xvrabcov, 9f51cb4, 8d6e5d6)
• Update contributions/pandoc-to-markdown. (contributed by @drehak, ac82a5f, 102b1a5)
• Add contributions/doctoral-thesis. (a8fbd97)

Continuous Integration:

• Add TL2021-historic image to the continuous integration. (a9e3b08)

2.15.0

Development:

• Add reflection to the TeX implementation. (#119, 73f699b..30ee46d, 02dd30a)
• Add an option to include arbitrary YAML documents. (#117, 78dc62b..93246a4)
• Move expl3 interface for YAML metadata from LaTeX to plain TeX. (1ec7931..95d83ba)
• Add LaTeX \markdownIfSnippetExists command. (929137a)
• Add code key to LaTeX \markdownSetup command. (ef53fae)

Contributed Software:

• Add a proof-of-concept of integration Markdown with Pandoc. (contributed by @drehak, #25, c40b51c)
• Add LaTeX themes for typesetting books and marketing colaterals. (contributed by @xvrabcov, #104, a7d6d2e)

Fixes:

• Use current theme name to resolve \markdownSetup{snippet = ...}. (0c79a80)

Documentation:

• Add directory contributions/ with contributed third-party software. (contributed by @drehak and @xvrabcov, c40b51c..9296cf1)
• Fix formatting gaffes in the documentation. (97dee2f)
• Remove an extra backslash in the user manual. (994d06f)
• Move <link> element out of the technical documentation. (18b6241)

2.14.1

Fixes:

• Fix default LaTeX renderer prototypes for block HTML comments. (b933d81)

2.14.0

Fixes:

• Track nested LaTeX themes with a stack. (69478c0, 00c3e6a)

Development:

• Add renderers for inline HTML tags, block HTML elements, and block HTML comments. (#90, e5e28ed, 44affc3)
• Add renderers for heading attributes. (#87, #91, cad83f6)
• Add relativeReferences Lua option for writing relative autolinks such as <#some-section>. (#87, #91, e7267c0)

Documentation:

• Change category code of percent sign (%) before \inputting the output of markdown-cli in LaTeX and ConTeXt examples. (a61e371, 9635d76)

Quality of Life:

• Emit an error message when an undefined LaTeX setup snippet is invoked. (9d25074)
• Add a trailing newline to the output of markdown-cli. (80b7067)

Default Renderer Prototypes:

• Do not use image alt text to produce labels in renderer prototypes. (reported by @writersglen, 1c31c01)
• Pass HTML through to TeX4ht. (contributed by @michal-h21, #90, 2f5dcba)
• Be lazy about what commands to use for default LaTeX table rules. (contributed by @michal-h21, #90, 03a444a)

Continuous Integration:

• Retry failed pkgcheck --urlcheck in Makefile. (3c31baf)
• Always upload artifacts, even outside the main branch. (24feb6a)

2.13.0

Fixes:

• Disable the parsing of timestamps in YAML metadata. (contributed by @TeXhackse, 75f6f20, 7d18b58, a27fdd9, #116)

Development:

• Add markdown document renderers. (2199c22, 4a70b04, #109)
• Add an example document for ConTeXt MkIV. (8bbb6ab, #17)

Default Renderer Prototypes:

• Redefine default LaTeX codeSpan renderer prototype to work in math mode. (35b53d3, e68a631)
• Support the unicode-math LaTeX package. (9d840be, #110)

Continuous Integration:

• Produce artefacts and GitHub pages only for the latest Docker tag. (976f074)
• Only push the latest Docker image once. (cc78fa1)
• Add --urlcheck option to the pkgcheck command in Makefile. (3b4d6a1, d9b2a01)

Docker:

• Show the size of the latest Docker image in the README. (1f680a8)

2.12.0

Fixes:

• Add default definition for \markdownRendererJekyllDataSequenceEnd. (6c4abe3)

Development:

• Preserve trailing spaces in ConTeXt MkIV. (#101)
• Add eagerCache Lua option. (#102)
• Add hardLineBreaks Lua option. (#98)

Documentation:

• Document how we can set Lua options from plain TeX and both Lua options and plain TeX options from LaTeX (#105)
• Update link to TUGboat 42(2) article from preprint to archival version. (715f53c)
• Add two articles from the CSTUG Bulletin 2021/1-4 to the README. (76da1d6)
• Escape percent signs in code examples in techdoc (7d6ca54)

Default Renderer Prototypes:

• Make content blocks automatically \input TeX files. (c798106)

Docker:

• Build and publish Docker images for historical TeX Live versions. (#111)