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+title: Release Notes for v2.4
+
+Python-Markdown 2.4 Release Notes
+=================================
+
+We are pleased to release Python-Markdown 2.4 which adds one new extension
+and fixes various bugs. See the list of changes below for details.
+
+Python-Markdown supports Python versions 2.6, 2.7, 3.1, 3.2, and 3.3.
+
+Backwards-incompatible Changes
+------------------------------
+
+* The `force_linenos` configuration setting of the CodeHilite extension has been
+ marked as **Deprecated**. It had previously been marked as "Pending
+ Deprecation" in version 2.3 when a new setting `linenums` was added to replace
+ it. See documentation for the [CodeHilite Extension] for an explanation of the
+ new `linenums` setting. The new setting will honor the old `force_linenos` if
+ it is set, but `force_linenos` will raise a `DeprecationWarning` and will
+ likely be removed in a future version of Python-Markdown.
+
+[CodeHilite Extension]: ../extensions/code_hilite.md
+
+* URLs are no longer percent-encoded. This improves compatibility with the
+ original (written in Perl) Markdown implementation. Please percent-encode your
+ URLs manually when needed.
+
+What's New in Python-Markdown 2.4
+---------------------------------
+
+* Thanks to the hard work of [Dmitry Shachnev] the [Smarty Extension] has been
+ added, which implements [SmartyPants] using Python-Markdown's Extension API.
+ This offers a few benefits over a third party script. The HTML does not need
+ to be "tokenized" twice, no hacks are required to combine SmartyPants and code
+ highlighting, and we get markdown's escaping feature for free. Please try it
+ out and report bugs and/or improvements.
+
+[Dmitry Shachnev]: https://github.com/mitya57
+[Smarty Extension]: ../extensions/smarty.md
+[SmartyPants]: http://daringfireball.net/projects/smartypants/
+
+* The [Table of Contents Extension] now supports new `permalink` option for
+ creating [Sphinx]-style anchor links.
+
+[Table of Contents Extension]: ../extensions/toc.md
+[Sphinx]: http://sphinx-doc.org/
+
+* It is now possible to enable Markdown formatting inside HTML blocks by
+ appending `markdown=1` to opening tag attributes. See [Markdown Inside HTML
+ Blocks] section for details. Thanks to [ryneeverett] for implementing this
+ feature.
+
+[Markdown Inside HTML Blocks]: ../extensions/extra.md#nested-markdown-inside-html-blocks
+[ryneeverett]: https://github.com/ryneeverett
+
+* The code blocks now support emphasizing some of the code lines. To use this
+ feature, specify `hl_lines` option after language name, for example (using the
+ [Fenced Code Extension]):
+
+ ```.python hl_lines="1 3"
+ # This line will be emphasized.
+ # This one won't.
+ # This one will be also emphasized.
+ ```
+
+ Thanks to [A. Jesse Jiryu Davis] for implementing this feature.
+
+[Fenced Code Extension]: ../extensions/fenced_code_blocks.md
+[A. Jesse Jiryu Davis]: https://github.com/ajdavis
+
+* Various bug fixes have been made. See the [commit
+ log](https://github.com/Python-Markdown/markdown/commits/master) for a
+ complete history of the changes.