• Footnote rendering bugfix (Michael Camilleri, #90).
• Debian packaging (Joachim Nilsson, #97).
• Add CMARK_OPT_STRIKETHROUGH_DOUBLE_TILDE for redcarpet compatibility.
• Add CMARK_OPT_TABLE_PREFER_STYLE_ATTRIBUTES (FUJI Goro, #86, #87).
• Fix pathological nested list parsing (Phil Turnbull, #95).
• Expose more of the extension APIs (Minghao Liu, #96).
• Add python example which uses extensions (Greg Stein, #102).
• Add CMARK_OPT_FULL_INFO_STRING (Mike Kavouras, #103).