- 2.3 (2011-02-06)
- ================
-
- Features added
- --------------
-
- * When looking for children, ``lxml.objectify`` takes '{}tag' as
-   meaning an empty namespace, as opposed to the parent namespace.
-
- Bugs fixed
- ----------
-
- * When finished reading from a file-like object, the parser
-   immediately calls its ``.close()`` method.
-
- * When finished parsing, ``iterparse()`` immediately closes the input
-   file.
-
- * Work-around for libxml2 bug that can leave the HTML parser in a
-   non-functional state after parsing a severly broken document (fixed
-   in libxml2 2.7.8).
-
- * ``marque`` tag in HTML cleanup code is correctly named ``marquee``.
-
- Other changes
- --------------
-
- * Some public functions in the Cython-level C-API have more explicit
-   return types.
-
- 2.3beta1 (2010-09-06)
- =====================
-
- Features added
- --------------
-
- Bugs fixed
- ----------
-
- * Crash in newer libxml2 versions when moving elements between
-   documents that had attributes on replaced XInclude nodes.
-
- * ``XMLID()`` function was missing the optional ``parser`` and
-   ``base_url`` parameters.
-
- * Searching for wildcard tags in ``iterparse()`` was broken in Py3.
-
- * ``lxml.html.open_in_browser()`` didn't work in Python 3 due to the
-   use of os.tempnam.  It now takes an optional 'encoding' parameter.
-
- Other changes
- --------------
-
- 2.3alpha2 (2010-07-24)
- ======================
-
- Features added
- --------------
-
- Bugs fixed
- ----------
-
- * Crash in XSLT when generating text-only result documents with a
-   stylesheet created in a different thread.
-
- Other changes
- --------------
-
- * ``repr()`` of Element objects shows the hex ID with leading 0x
-   (following ElementTree 1.3).
-
- 2.3alpha1 (2010-06-19)
- ======================
-
- Features added
- --------------
-
- * Keyword argument ``namespaces`` in ``lxml.cssselect.CSSSelector()``
-   to pass a prefix-to-namespace mapping for the selector.
-
- * New function ``lxml.etree.register_namespace(prefix, uri)`` that
-   globally registers a namespace prefix for a namespace that newly
-   created Elements in that namespace will use automatically.  Follows
-   ElementTree 1.3.
-
- * Support 'unicode' string name as encoding parameter in
-   ``tostring()``, following ElementTree 1.3.
-
- * Support 'c14n' serialisation method in ``ElementTree.write()`` and
-   ``tostring()``, following ElementTree 1.3.
-
- * The ElementPath expression syntax (``el.find*()``) was extended to
-   match the upcoming ElementTree 1.3 that will ship in the standard
-   library of Python 3.2/2.7.  This includes extended support for
-   predicates as well as namespace prefixes (as known from XPath).
-
- * During regular XPath evaluation, various ESXLT functions are
-   available within their namespace when using libxslt 1.1.26 or later.
-
- * Support passing a readily configured logger instance into
-   ``PyErrorLog``, instead of a logger name.
-
- * On serialisation, the new ``doctype`` parameter can be used to
-   override the DOCTYPE (internal subset) of the document.
-
- * New parameter ``output_parent`` to ``XSLTExtension.apply_templates()``
-   to append the resulting content directly to an output element.
-
- * ``XSLTExtension.process_children()`` to process the content of the
-   XSLT extension element itself.
-
- * ISO-Schematron support based on the de-facto Schematron reference
-   'skeleton implementation'.
-
- * XSLT objects now take XPath object as ``__call__`` stylesheet
-   parameters.
-
- * Enable path caching in ElementPath (``el.find*()``) to avoid parsing
-   overhead.
-
- * Setting the value of a namespaced attribute always uses a prefixed
-   namespace instead of the default namespace even if both declare the
-   same namespace URI.  This avoids serialisation problems when an
-   attribute from a default namespace is set on an element from a
-   different namespace.
-
- * XSLT extension elements: support for XSLT context nodes other than
-   elements: document root, comments, processing instructions.
-
- * Support for strings (in addition to Elements) in node-sets returned
-   by extension functions.
-
- * Forms that lack an ``action`` attribute default to the base URL of
-   the document on submit.
-
- * XPath attribute result strings have an ``attrname`` property.
-
- * Namespace URIs get validated against RFC 3986 at the API level
-   (required by the XML namespace specification).
-
- * Target parsers show their target object in the ``.target`` property
-   (compatible with ElementTree).
-
- Bugs fixed
- ----------
-
- * API is hardened against invalid proxy instances to prevent crashes
-   due to incorrectly instantiated Element instances.
-
- * Prevent crash when instantiating ``CommentBase`` and friends.
-
- * Export ElementTree compatible XML parser class as
-   ``XMLTreeBuilder``, as it is called in ET 1.2.
-
- * ObjectifiedDataElements in lxml.objectify were not hashable.  They
-   now use the hash value of the underlying Python value (string,
-   number, etc.) to which they compare equal.
-
- * Parsing broken fragments in lxml.html could fail if the fragment
-   contained an orphaned closing '</div>' tag.
-
- * Using XSLT extension elements around the root of the output document
-   crashed.
-
- * ``lxml.cssselect`` did not distinguish between ``x[attr="val"]`` and
-   ``x [attr="val"]`` (with a space).  The latter now matches the
-   attribute independent of the element.
-
- * Rewriting multiple links inside of HTML text content could end up
-   replacing unrelated content as replacements could impact the
-   reported position of subsequent matches.  Modifications are now
-   simplified by letting the ``iterlinks()`` generator in ``lxml.html``
-   return links in reversed order if they appear inside the same text
-   node.  Thus, replacements and link-internal modifications no longer
-   change the position of links reported afterwards.
-
- * The ``.value`` attribute of ``textarea`` elements in lxml.html did
-   not represent the complete raw value (including child tags etc.). It
-   now serialises the complete content on read and replaces the
-   complete content by a string on write.
-
- * Target parser didn't call ``.close()`` on the target object if
-   parsing failed.  Now it is guaranteed that ``.close()`` will be
-   called after parsing, regardless of the outcome.
-
- Other changes
- -------------
-
- * Official support for Python 3.1.2 and later.
-
- * Static MS Windows builds can now download their dependencies
-   themselves.
-
- * ``Element.attrib`` no longer uses a cyclic reference back to its
-   Element object.  It therefore no longer requires the garbage
-   collector to clean up.
-
- * Static builds include libiconv, in addition to libxml2 and libxslt.