2.2.2 (2009-06-21)
==================
Features added
--------------
* New helper functions ``strip_attributes()``, ``strip_elements()``,
``strip_tags()`` in lxml.etree to remove attributes/subtrees/tags
from a subtree.
Bugs fixed
----------
* Namespace cleanup on subtree insertions could result in missing
namespace declarations (and potentially crashes) if the element
defining a namespace was deleted and the namespace was not used by
the top element of the inserted subtree but only in deeper subtrees.
* Raising an exception from a parser target callback didn't always
terminate the parser.
* Only {true, false, 1, 0} are accepted as the lexical representation for
BoolElement ({True, False, T, F, t, f} not any more), restoring lxml <= 2.0
behaviour.
2.2.1 (2009-06-02)
==================
Features added
--------------
* Injecting default attributes into a document during XML Schema
validation (also at parse time).
* Pass ``huge_tree`` parser option to disable parser security
restrictions imposed by libxml2 2.7.
Bugs fixed
----------
* The script for statically building libxml2 and libxslt didn't work
in Py3.
* ``XMLSchema()`` also passes invalid schema documents on to libxml2
for parsing (which could lead to a crash before release 2.6.24).
2.2 (2009-03-21)
================
Features added
--------------
* Support for ``standalone`` flag in XML declaration through
``tree.docinfo.standalone`` and by passing ``standalone=True/False``
on serialisation.
Bugs fixed
----------
* Crash when parsing an XML Schema with external imports from a
filename.
2.2beta4 (2009-02-27)
=====================
Features added
--------------
* Support strings and instantiable Element classes as child arguments
to the constructor of custom Element classes.
* GZip compression support for serialisation to files and file-like
objects.
Bugs fixed
----------
* Deep-copying an ElementTree copied neither its sibling PIs and
comments nor its internal/external DTD subsets.
* Soupparser failed on broken attributes without values.
* Crash in XSLT when overwriting an already defined attribute using
``xsl:attribute``.
* Crash bug in exception handling code under Python 3. This was due
to a problem in Cython, not lxml itself.
* ``lxml.html.FormElement._name()`` failed for non top-level forms.
* ``TAG`` special attribute in constructor of custom Element classes
was evaluated incorrectly.
Other changes
-------------
* Official support for Python 3.0.1.
* ``Element.findtext()`` now returns an empty string instead of None
for Elements without text content.
2.2beta3 (2009-02-17)
=====================
Features added
--------------
* ``XSLT.strparam()`` class method to wrap quoted string parameters
that require escaping.
Bugs fixed
----------
* Memory leak in XPath evaluators.
* Crash when parsing indented XML in one thread and merging it with
other documents parsed in another thread.
* Setting the ``base`` attribute in ``lxml.objectify`` from a unicode
string failed.
* Fixes following changes in Python 3.0.1.
* Minor fixes for Python 3.
Other changes
-------------
* The global error log (which is copied into the exception log) is now
local to a thread, which fixes some race conditions.
* More robust error handling on serialisation.
2.2beta2 (2009-01-25)
=====================
Bugs fixed
----------
* Potential memory leak on exception handling. This was due to a
problem in Cython, not lxml itself.
* ``iter_links`` (and related link-rewriting functions) in
``lxml.html`` would interpret CSS like ``url("link")`` incorrectly
(treating the quotation marks as part of the link).
* Failing import on systems that have an ``io`` module.
2.1.5 (2009-01-06)
==================
Bugs fixed
----------
* Potential memory leak on exception handling. This was due to a
problem in Cython, not lxml itself.
* Failing import on systems that have an ``io`` module.
2.2beta1 (2008-12-12)
=====================
Features added
--------------
* Allow ``lxml.html.diff.htmldiff`` to accept Element objects, not
just HTML strings.
Bugs fixed
----------
* Crash when using an XPath evaluator in multiple threads.
* Fixed missing whitespace before ``Link:...`` in ``lxml.html.diff``.
Other changes
-------------
* Export ``lxml.html.parse``.
2.1.4 (2008-12-12)
==================
Bugs fixed
----------
* Crash when using an XPath evaluator in multiple threads.
2.0.11 (2008-12-12)
===================
Bugs fixed
----------
* Crash when using an XPath evaluator in multiple threads.
2.2alpha1 (2008-11-23)
======================
Features added
--------------
* Support for XSLT result tree fragments in XPath/XSLT extension
functions.
* QName objects have new properties ``namespace`` and ``localname``.
* New options for exclusive C14N and C14N without comments.
* Instantiating a custom Element classes creates a new Element.
Bugs fixed
----------
* XSLT didn't inherit the parse options of the input document.
* 0-bytes could slip through the API when used inside of Unicode
strings.
* With ``lxml.html.clean.autolink``, links with balanced parenthesis,
that end in a parenthesis, will be linked in their entirety (typical
with Wikipedia links).
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