2.2.0:

• Port to use module aliases, so there are now Cow_xml Cow_html Cow_xhtml Cow_markdown Cow_json and Cow_atom modules, with aliases to the old scheme under the Cow module (e.g. Cow.Xml). Existing code should continue to work, but the whole compilation unit is no longer linked in if just a single method of output is used. This bumps the minimum OCaml version to 4.02.3 due to the use of module-level aliases.
• Switch build system to use topkg instead of oasis, and adhere to the opkg layout format.

2.1.0 (21-May-2016):

• Add description lists (dl/dt/dd)
• Add ~licls/~dtcls/~ddcls to Html.ul/ol/dl. Setting classes of child elements in lists is sometimes useful.
• Add some missing HTML5 combinators.

2.0.1 (03-May-2016):

• Turn off warnings-as-errors, which fixes build under 4.03
• Add OCaml test cases for OCaml 4.03.

2.0.0: (13-Mar-2016):

• Remove camlp4 syntax extension support
• Expose more and clean-up Html combinators

1.4.1 (unreleased):

• Fix XML and HTML labeled argument assignment antiquotation syntax bug (#86)
• Fix CSS space-less antiquotation syntax bug

1.4.0 (27-Sep-2015):

• Improve compatability with Type_conv >= 113.00 by renaming some of the syntax parser modules to be less generically named.
• Add ocamldoc generation and improve the Html.Create library (from @chrismamo1 in #82).

1.3.0 (02-Aug-2015)

• Add Css.of_string, Css.set_prop, Css.get_prop, Css.polygradient. Css.gradient (#74, by @chrismamo1)
• Add optional arguments to Css.top_rounded, Css.rounded, Css.box_shadow and Css.text_shadow (#74, by @chrismamo1)
• Add Html.concat, Html.append, Html.Create.ul and Html.Create.ol (#74, by @chrismamo1)

1.2.2 (30-Jul-2015)

• Fix int32 conversion to float in JSON syntax (#76, by Antoine Luciani)
• Fix a regression introduced in 1.2.0 in make test (#72 by @dsheets)
• Modernize .travis.yml to use ocaml-travisci-skeleton (by @dsheets)
• Remove direct dependency on re (#71, by @rgrinberg)
• Add a .merlin file (#70, by @rgrinberg)

1.2.1 (05-Mar-2015):

• Fix compatibility of the json syntax extension with ezjsonm version 0.4 (#68)

1.2.0 (06-Feb-2015):

• When serializing HTML, only self-close void elements.
• New Html.doctype value of the HTML5 DOCTYPE.
• New Html.output and Html.output_doc functions for generic polyglot output.
• Atom support is now deprecated in favor of Syndic
• New Html.img constructor for easy creation of tags
• New Html.a constructor for easy creation of tags
• Deprecate function Html.html_of_link and type Html.link

1.1.0 (20-Dec-2014):

• Add OPAM 1.2 compatible description file (#53).
• Fix compatibility with ezjsonm version 0.4+ (#55).

1.0.0 (26-Aug-2014):

• Fix OCaml 4.02 compatibility by not exposing a Location module in syntax extensions to avoid a namespace clash. We now rename them to Xml_location and Css_location and pack those instead.
• Fix BSD compatibility using $(MAKE) instead of make (since the GNU make binary is actually gmake on Free/Net/OpenBSD).
• Reduce the verbosity of the build by default.
• Travis: Add OCaml 4.02 and OPAM 1.2.0 tests

0.10.1 (10-Aug-2014):

• Fix Xml.of_string "" invalid argument bug

0.10.0 (26-Apr-2014):

• Remove JSON parsing in favour of using jsonm instead.
• Stop testing OCaml 3.12.1 (although it may continue to work).

0.9.1 (20-Dec-2013):

• Fix parsing of empty attributes in XML/HTML/XHTML.

0.9.0 (20-Dec-2013):

• Remove all the Markdown variants except Omd, which now claims the Cow.Markdown module name.
• Clarify the repository license as ISC.
• Run some modules through ocp-indent.

0.8.1 (15-Dec-2013):

• Fix META file to include omd.
• Improve ocamldoc in CSS module and document quotations in README.
• Add merlin editor file.

0.8.0 (12-Dec-2013):

• Add Travis continuous integration scripts.
• Add Omd_markdown module based on the omd library.
• Note: The Markdown and Markdown_github modules are now deprecated and will be removed before 1.0.

0.7.0 (25-Sep-2013):

• Add an OPAM script that installs the right dependencies.
• Make native dynlink optional if not supported by the toolchain.
• Add support for <xml:base> in Atom feeds.

0.6.2 (30-Jul-2013):

• Fix code highlighting of integer literals with underscores.
• Fix XML parsing and printing for fragments and full documents.
• Fix handling of whitespaces in antiquotation attributes.

0.6.1 (03-Jul-2013):

• Tweak CSS syntax highlighting of OCaml code to fit Anil's superior colour taste.
• Add a Code.ocaml_fragment to get just the syntax highlighted bits without the wrapper tags.
• Expose a decl option to make the Xml.to_string declaration prefix optional.
• Do not output a <?xml declaration in Html.to_string.

0.6.0 (21-Jun-2013):

• Add URI anti-quotation expander that maps $uri:u$ to Uri.to_string u.
• Xmlm is now an external dependency instead of being bundled with Cow.
• Remove ?templates from Html.of_string and Xml.of_string.

0.5.5 (12-Jun-2013):

• Markdown to HTML now generates header titles inside the anchor (previously, a space was anchored).

0.5.4 (21-May-2013):

• Add json_of and of_json type-conv providers (#6).
• Add Json.to_string_hum which adds more newlines for human-readable output (#7).
• Document the -cow-no-open camlp4 flag (#9).
• Be compatible with Core by using List.concat instead of List.flatten (#2).
• Fix Atom feed by adding a link field.
• Install .mli files with the library binaries (#11).
• New dependency on the Uri library.

0.5.3 (18-Feb-2013):

• Correct META file for cow.syntax to not repeat the Str module loading.
• Fix error with unary sum types for HTML generation.
• Support JSON marshalling for option types.

0.5.2 (15-Jan-2013):

• Remove dependency towards the Str module

0.5.1 (10-Jan-2013):

• Fix bugs in Markdown_github and factorize html serialization functions
• New antiquotation kinds for CSS
• Add xhtml quotations (which are identical to html from now on)

0.5.0 (04-Dec-2012):

• Remove the broken Twitter module
• Add Markdown_github to read Github's markdown files

0.4.0 (05-Oct-2012):

• Support (and require) type_conv-108.07.00+

0.3.2 (11-Sep-2012):

• Add <:html< quotation, based on the XML generator, but with all the XHTML entities also supplied.

0.3.1 (04-Sep-2012):

• Fix the OCamlfind META file.

0.3.0 (02-Sep-2012):

• Initial public release.