pandoc my.md -t context -o my.pdf will now create a PDF using ConTeXt rather than LaTeX (#2463).

Fixed omitted url(...) in CSS data-uri with --self-contained (#2489).

Added emoji Markdown extension, enabled by default in markdown_github (#2523). Added Ext_emoji to Extension in Text.Pandoc.Options (API change).

Text.Pandoc.Readers.HTML.parseTags: Fixed over-eager raw HTML inline parsing (#2469). Tightened up the inline HTML parser so it disallows TagWarnings.

Derive Generic instances for the types in Text.Pandoc.Options.

Org reader:

• Fix paragraph/list interaction (Albert Krewinkel, #2464). Paragraphs can be followed by lists, even if there is no blank line between the two blocks. However, this should only be true if the paragraph is not within a list, were the preceding block should be parsed as a plain instead of paragraph (to allow for compact lists). Thanks to @rgaiacs for bringing this up.
• Allow toggling header args (Albert Krewinkel, #2269). Org-mode allows to skip the argument of a code block header argument if it's toggling a value. Argument-less headers are now recognized, avoiding weird parsing errors.
• Fix markup parsing in headers (Albert Krewinkel, #2504). Markup as the very first item in a header wasn't recognized. This was caused by an incorrect parser state: positions at which inline markup can start need to be marked explicitly by changing the parser state. This wasn't done for headers. The proper function to update the state is now called at the beginning of the header parser, fixing this issue.
• Fix emphasis rules for smart parsing (Albert Krewinkel, #2513). Smart quotes, ellipses, and dashes should behave like normal quotes, single dashes, and dots with respect to text markup parsing.
• Require whitespace around definition list markers (#2518). This rule was not checked before, resulting in bugs with footnotes and some link types.

Markdown reader:

• Pipe tables with long lines now get relative cell widths (#2471). If a pipe table contains a line longer than the column width (as set by --columns or 80 by default), relative widths are computed based on the widths of the separator lines relative to the column width. This should solve persistent problems with long pipe tables in LaTeX/PDF output, and give more flexibility for determining relative column widths in other formats, too. For narrower pipe tables, column widths of 0 are used, telling pandoc not to specify widths explicitly in output formats that permit this.
• Improved parser for mmd_title_block. We now allow blank metadata fields. These were explicitly disallowed before.
• Citation keys can now contain ://, so URLs and DOIs can be used as citation keys (jgm/pandoc-citeproc#166).

Beamer template: fix incompatibility of section slides with natbib. Natbib (and presumably biblatex) bibliography commands create their own section. Since these are in frame environments, we have an incompatibility with the \AtBeginSection macro which creates a special frame when a new section occurs. (We can't have a frame inside another frame.) This change disables \AtBeginSection inside bibliography slides. Thinks to Yihui Xie for bringing the problem to my attention. This supersedes #145. See discussion there.

Textile reader: don't do smart punctuation unless explicitly asked (#2480). Note that although smart punctuation is part of the textile spec, it's not always wanted when converting from textile to, say, Markdown. So it seems better to make this an option.

LaTeX reader: Handle comment environment (Arata Mizuki). The comment environment is handled in a similar way to the verbatim environment, except that its content is discarded.

Docx reader: Follow relationships correctly in foot/endnotes (#2258, Jesse Rosenthal). This fixes a problem with links in notes.

LaTeX and ConTeXt writers: support lang attribute on divs and spans (mb21). For LaTeX, also collect lang and dir attributes on spans and divs to set the lang, otherlangs and dir variables if they aren’t set already. See #895.

LaTeX writer:

• Use proper command for \textarabic (mb21).
• Added de-CH-1901, fixed el-polyton in toPloyglossia (Nick Bart).
• Use \hypertarget and \hyperlink for links. This works correctly to link to Div or Span elements. We now don't bother defining \label for Div or Span elements. Closes jgm/pandoc-citeproc#174.
• Avoid footnotes in list of figures (#1506).
• Properly handle footnotes in captions (#1506).
• Add \protect to \hyperlink (#2490). Thanks to Hadrien Mary.
• Set colorlinks if linkcolor, urlcolor, citecolor, or toccolor is set (#2508).

Textile writer: support start number in ordered lists (#2465).

OpenDocument writer: Allow customization of opendocument automatic styles. Automatic styles can now be inserted in the template, which now provides the enclosing <office:automatic-styles> tags (#2520).

Docx writer: insert space between footnote reference and note (#2527). This matches Word's default behavior.

EPUB writer: don't download linked media when data-external attribute set (#2473). By default pandoc downloads all linked media and includes it in the EPUB container. This can be disabled by setting data-external on the tags linking to media that should not be downloaded. Example:

<audio controls="1">
 <source src="http://www.sixbarsjail.it/tmp/bach_toccata.mp3"
 type="audio/mpeg"></source>
</audio>

HTML writer: use width on whole table if col widths sum to < 100%. Otherwise some browsers display the table with the columns separated far apart.

AsciiDoc template: Fix author and date; add keywords, abstract (Andrew Dunning).

HTML-based templates (Andrew Dunning):

• Use en dash instead of hyphen between title prefix and title.
• Add keywords to metadata.
• Add lang, dir, quotes where missing.
• Always make author and date display conditional.
• Updated dzslides template from source.

Man template: make "generated by" comment conditional.

LaTeX, Beamer templates:

• Add babel-otherlangs for language divs/spans; babel-newcommands, filled by commands that make babel understand the polyglossia-style language directives (mb21, #137).
• Improved formatting of conditionals; $for$ is always provided to allow multiple options (Andrew Dunning, #141).
• Use Ligatures=TeX rather than Mapping=tex-text with fontspec to improve support for LuaTeX (Andrew Dunning, #135).
• Revise hyperref usage (Andrew Dunning, #139, #141):
  • use same options for all LaTeX engines;
  • add subtitle and keywords to PDF metadata;
  • do not override hyperref link coloring without user input, effectively making the hidelinks option the default (removed as a separate variable);
  • link colors can be enabled (using a slightly darker version of the old defaults) using a new colorlinks variable, automatically used by the LaTeX writer when custom colors are specified;
  • pdfborder={0 0 0} is automatically set by hyperref with colorlinks, and is only applied if colorlinks is disabled.

ConTeXt template (Andrew Dunning):

• New variables for controlling styles: linkstyle, linkcolor, linkcontrastcolor, layout, pagenumbering, whitespace, indenting, interlinespace, headertext, footertext, mainfont, sansfont, monofont, mathfont, fontsize.
• Default template no longer supports MkII.
• Improve writing of title block (suppressing numbering of first page).
• Add title subtitle, author, date, keywords to PDF metadata.
• Support subtitle, abstract.
• Support list of figures (lof), list of tables (lot).
• Disable link styling by default.
• Define styles for all section types.
• Enable microtype.
• Improved formatting of conditionals.

Beamer template: added code to prevent slide breaks inside paragraphs (#2422, thanks to Nick Bart). This will matter, in practice, only when allowframebreaks is used. It is especially helpful for bibliography slides.

OpenDocument template: Add <office:automatic-styles> tag around automatic styles. The writer now longer provides this (see #2520).

Restored Text.Pandoc.Compat.Monoid.

Do not export (<>) from custom Prelude. The Prelude now matches base 4.8 Prelude's API.

Don't use custom prelude with ghc 7.10. Use the custom prelude only for earlier versions. This change makes stack ghci and cabal repl work (#2503), at least with ghc 7.10.

Changed § to % in operators from Odt.Arrows.Utils (#2457). This prevents problems building haddocks with "C" locale.

Change default for old-locale flag to False.

Use stack in deb, osx, and Windows package generators.

Added Vagrantfile for building deb in vm. This should help in automating binary package creation. 'make package' will make the package. 'make package COMMIT=blah' will make the package from commit blah.

README:

• Consistent capitalization for pandoc and Markdown.
• Fixed auto_identifiers examples (Benoit Schweblin).
• Improved documentation of template variables (Andrew Dunning).