=== 1.6.6.2 / 2015-01-23

==== Bug fixes

* Fixed installation issue affecting compiler arguments. (#1230)


=== 1.6.6.1 / 2015-01-22

Note that 1.6.6.0 was not released.

==== Features

* Unified Node and NodeSet implementations of #search, #xpath and #css.
* Added Node#lang and Node#lang=.
* bin/nokogiri passes the URI to parse() if an HTTP URL is given.
* bin/nokogiri now loads ~/.nokogirirc so user can define helper methods, etc.
* bin/nokogiri can be configured to use Pry instead of IRB by adding a couple of lines to ~/.nokogirirc. (#1198)
* bin/nokogiri can better handle urls from STDIN (aiding use of xargs). (#1065)
* JRuby 9K support.


==== Bug fixes

* DocumentFragment#search now matches against root nodes. (#1205)
* (MRI) More fixes related to handling libxml2 parse errors during DocumentFragment#dup. (#1196)
* (JRuby) Builder now handles namespace hrefs properly when there is a default ns. (#1039)
* (JRuby) Clear the XPath cache on attr removal. (#1109)
* `XML::Comment.new` argument types are now consistent and safe (and documented) across MRI and JRuby. (#1224)
* (MRI) Restoring support for Ruby 1.9.2 that was broken in v1.6.4.1 and v1.6.5. (#1207)
* Check if `zlib` is available before building `libxml2`. (#1188)
* (JRuby) HtmlSaxPushParser now exists. (#1147) (Thanks, Piotr Szmielew!)


=== 1.6.5 / 2014-11-26

==== Features

* Implement Slop#respond_to_missing?. (#1176)
* Optimized the XPath query generated by an `an+b` CSS query.


==== Bug fixes

* Capture non-parse errors from Document#dup in Document#errors. (#1196)
* (JRuby) Document#canonicalize parameters are now consistent with MRI. (#1189)


=== 1.6.4.1 / 2014-11-05

==== Bug fixes

* (MRI) Fix a bug where CFLAGS passed in are dropped. (#1188)
* Fix a bug where CSS selector :nth(n) did not work. (#1187)


=== 1.6.4 / 2014-11-04

==== Features

* (MRI) Bundled Libxml2 is upgraded to 2.9.2.
* (MRI) `nokogiri --version` will include a list of applied patches.
* (MRI) Nokogiri no longer prints messages directly to TTY while building the extension.
* (MRI) Detect and help user fix a missing /usr/include/iconv.h on OS X. (#1111)
* (MRI) Improve the iconv detection for building libxml2.

==== Bug fixes

* (MRI) Fix DocumentFragment#element_children (#1138).
* Fix a bug with CSS attribute selector without any prefix where "foo [bar]" was treated as "foo[bar]". (#1174)


=== 1.6.3.1 / 2014-07-21

==== Bug fixes

* Addressing an Apple Macintosh installation problem for GCC users. #1130 (Thanks, @zenspider!)


=== 1.6.3 / 2014-07-20

==== Features

* Added Node#document? and Node#processing_instruction?


==== Bug fixes

* [JRuby] Fix Ruby memory exhaustion vulnerability. #1087 (Thanks, @ocher)
* [MRI] Fix segfault during GC when using `libxml-ruby` and `nokogiri` together in multi-threaded environment. #895 (Thanks, @ender672!)
* Building on OSX 10.9 stock ruby 2.0.0 now works. #1101 (Thanks, @zenspider!)
* Node#parse now works again for HTML document nodes (broken in 1.6.2+).
* Processing instructions can now be added via Node#add_next_sibling.


=== 1.6.2.1 / 2014-05-13

==== Bug fixes

* Fix statically-linked libxml2 installation when using universal builds of Ruby. #1104
* Patching `mini_portile` to address the git dependency detailed in #1102.
* Library load fix to address segfault reported on some systems. #1097


=== 1.6.2 / 2014-05-12

==== Security Note

A set of security and bugfix patches have been backported from the libxml2 and libxslt repositories onto the version of 2.8.0 packaged with Nokogiri, including these notable security fixes:

* https://git.gnome.org/browse/libxml2/commit/?id=4629ee02ac649c27f9c0cf98ba017c6b5526070f
* CVE-2013-2877 https://git.gnome.org/browse/libxml2/commit/?id=e50ba8164eee06461c73cd8abb9b46aa0be81869
* CVE-2014-0191 https://git.gnome.org/browse/libxml2/commit/?id=9cd1c3cfbd32655d60572c0a413e017260c854df

It is recommended that you upgrade from 1.6.x to this version as soon as possible.

==== Compatibility Note

Now requires libxml >= 2.6.21 (was previously >= 2.6.17).

==== Features

* Add cross building of fat binary gems for 64-Bit Windows (x64-mingw32) and add support for native builds on Windows. #864, #989, #1072
* (MRI) Alias CP932 to Windows-31J if iconv does not support Windows-31J.
* (MRI) Nokogiri now links packaged libraries statically. To disable static linking, pass --disable-static to extconf.rb. #923
* (MRI) Fix a library path (LIBPATH) precedence problem caused by CRuby bug #9760.
* (MRI) Nokogiri automatically deletes directories of packaged libraries only used during build. To keep them for debugging purposes, pass --disable-clean to extconf.rb. #952
* (MRI) Nokogiri now builds libxml2 properly with iconv support on platforms where libiconv is installed outside the system default directories, such as FreeBSD.
* Add support for an-b in nth selectors. #886 (Thanks, Magnus Bergmark!)
* Add support for bare and multiple :not() functions in selectors. #887 (Thanks, Magnus Bergmark!)
* (MRI) Add an extconf.rb option --use-system-libraries, alternative to setting the environment variable NOKOGIRI_USE_SYSTEM_LIBRARIES.
* (MRI) Update packaged libraries: libxslt to 1.1.28, zlib to 1.2.8, and libiconv to 1.14, respectively.
* Nokogiri::HTML::Document#title= and #meta_encoding= now always add an element if not present, trying hard to find the best place to put it.
* Nokogiri::XML::DTD#html_dtd? and #html5_dtd? are added.
* Nokogiri::XML::Node#prepend_child is added. #664
* Nokogiri::XML::SAX::ParserContext#recovery is added. #453
* Fix documentation for XML::Node#namespace. #803 #802 (Thanks, Hoylen Sue)
* Allow Nokogiri::XML::Node#parse from unparented non-element nodes. #407

==== Bugfixes

* Ensure :only-child pseudo class works within :not pseudo class. #858 (Thanks, Yamagishi Kazutoshi!)
* Don't call pkg_config when using bundled libraries in extconf.rb #931 (Thanks, Shota Fukumori!)
* Nokogiri.parse() does not mistake a non-HTML document like a RSS document as HTML document. #932 (Thanks, Yamagishi Kazutoshi!)
* (MRI) Perform a node type check before adding a child node to another. Previously adding a text node to another as a child could cause a SEGV. #1092
* (JRuby) XSD validation crashes in Java version. #373
* (JRuby) Document already has a root node error while using Builder. #646
* (JRuby) c14n tests are all passing on JRuby. #226
* Parsing empty documents raise SyntaxError in strict mode. #1005
* (JRuby) Make xpath faster by caching the xpath context. #741
* (JRuby) XML SAX push parser leaks memory on JRuby, but not on MRI. #998
* (JRuby) Inconsistent behavior aliasing the default namespace. #940
* (JRuby) Inconsistent behavior between parsing and adding namespaces. #943
* (JRuby) Xpath returns inconsistent result set on cloned document with namespaces and attributes. #1034
* (JRuby) Java-Implementation forgets element namespaces #902
* (JRuby) JRuby-Nokogiri does not recognise attributes inside namespaces #1081
* (JRuby) JRuby-Nokogiri has different comment node name #1080
* (JRuby) JAXPExtensionsProvider / Java 7 / Secure Processing #1070

=== 1.6.1 / 2013-12-14

* Bugfixes

  * (JRuby) Fix out of memory bug when certain invalid documents are parsed.
  * (JRuby) Fix regression of billion-laughs vulnerability. #586


=== 1.6.0 / 2013-06-08

This release was based on v1.5.10 and 1.6.0.rc1, and contains changes
mentioned in both.

* Deprecations

  * Remove pre 1.9 monitoring from Travis.


=== 1.6.0.rc1 / 2013-04-14

This release was based on v1.5.9, and so does not contain any fixes
mentioned in the notes for v1.5.10.

* Notes

  * mini_portile is now a runtime dependency
  * Ruby 1.9.2 and higher now required


* Features

  * (MRI) Source code for libxml 2.8.0 and libxslt 1.2.26 is packaged
    with the gem. These libraries are compiled at gem install time
    unless the environment variable NOKOGIRI_USE_SYSTEM_LIBRARIES is
    set. VERSION_INFO (also `nokogiri -v`) exposes whether libxml was
    compiled from packaged source, or the system library was used.
  * (Windows) libxml upgraded to 2.8.0


* Deprecations

  * Support for Ruby 1.8.7 and prior has been dropped


=== 1.5.11 / 2013-12-14

* Bugfixes

  * (JRuby) Fix out of memory bug when certain invalid documents are parsed.
  * (JRuby) Fix regression of billion-laughs vulnerability. #586


=== 1.5.10 / 2013-06-07

* Bugfixes

  * (JRuby) Fix "null document" error when parsing an empty IO in jruby 1.7.3. #883
  * (JRuby) Fix schema validation when XSD has DOCTYPE set to DTD. #912 (Thanks, Patrick Cheng!)
  * (MRI) Fix segfault when there is no default subelement for an HTML node. #917


* Notes

  * Use rb_ary_entry instead of RARRAY_PTR (you know, for Rubinius). #877 (Thanks, Dirkjan Bussink!)
  * Fix TypeError when running tests. #900 (Thanks, Cédric Boutillier!)


=== 1.5.9 / 2013-03-21

* Bugfixes

  * Ensure that prefixed attributes are properly namespaced when reparented. #869
  * Fix for inconsistent namespaced attribute access for SVG nested in HTML. #861
  * (MRI) Fixed a memory leak in fragment parsing if nodes are not all subsequently reparented. #856


=== 1.5.8 / 2013-03-19

* Bugfixes

  * (JRuby) Fix EmptyStackException thrown by elements with xlink:href attributes and no base_uri #534, #805. (Thanks, Patrick Quinn and Brian Hoffman!)
  * Fixes duplicate attributes issue introduced in 1.5.7. #865
  * Allow use of a prefixed namespace on a root node using Nokogiri::XML::Builder #868


=== 1.5.7 / 2013-03-18

* Features

  * Windows support for Ruby 2.0.


* Bugfixes

  * SAX::Parser.parse_io throw an error when used with lower case encoding. #828
  * (JRuby) Java Nokogiri is finally green (passes all tests) under 1.8 and 1.9 mode. High five everyone. #798, #705
  * (JRuby) Nokogiri::XML::Reader broken (as a pull parser) on jruby - reads the whole XML document. #831
  * (JRuby) JRuby hangs parsing "&amp;". #837
  * (JRuby) JRuby NPE parsing an invalid XML instruction. #838
  * (JRuby) Node#content= incompatibility. #839
  * (JRuby) to_xhtml doesn't print the last slash for self-closing tags in JRuby. #834
  * (JRuby) Adding an EntityReference after a Text node mangles the entity in JRuby. #835
  * (JRuby) JRuby version inconsistency: nil for empty attributes. #818
  * CSS queries for classes (e.g., ".foo") now treat all whitespace identically. #854
  * Namespace behavior cleaned up and made consistent between JRuby and MRI. #846, #801 (Thanks, Michael Klein!)
  * (MRI) SAX parser handles empty processing instructions. #845


=== 1.5.6 / 2012-12-19

* Features

  * Improved performance of XML::Document#collect_namespaces. #761 (Thanks, Juergen Mangler!)
  * New callback SAX::Document#processing_instruction (Thanks, Kitaiti Makoto!)
  * Node#native_content= allows setting unescaped node contant. #768
  * XPath lookup with namespaces supports symbol keys. #729 (Thanks, Ben Langfeld.)
  * XML::Node#[]= stringifies values. #729 (Thanks, Ben Langfeld.)
  * bin/nokogiri will process a document from $stdin
  * bin/nokogiri -e will execute a program from the command line
  * (JRuby) bin/nokogiri --version will print the Xerces and NekoHTML versions.


* Bugfixes

  * Nokogiri now detects XSLT transform errors. #731 (Thanks, Justin Fitzsimmons!)
  * Don't throw an Error when trying to replace top-level text node in DocumentFragment. #775
  * Raise an ArgumentError if an invalid encoding is passed to the SAX parser. #756 (Thanks, Bradley Schaefer!)
  * Prefixed element inconsistency between CRuby and JRuby. #712
  * (JRuby) space prior to xml preamble causes nokogiri to fail parsing. (fixed along with #748) #790
  * (JRuby) Fixed the bug Nokogiri::XML::Node#content inconsistency between Java and C. #794, #797
  * (JRuby) raises INVALID_CHARACTER_ERR exception when EntityReference name starts with '#'. #719
  * (JRuby) doesn't coerce namespaces out of strings on a direct subclass of Node. #715
  * (JRuby) Node#content now renders newlines properly. #737 (Thanks, Piotr Szmielew!)
  * (JRuby) Unknown namespace are ignore when the recover option is used. #748
  * (JRuby) XPath queries for namespaces should not throw exceptions when called twice in a row. #764
  * (JRuby) More consistent (with libxml2) whitespace formatting when emitting XML. #771
  * (JRuby) namespaced attributes broken when appending raw xml to builder. #770
  * (JRuby) Nokogiri::XML::Document#wrap raises undefined method `length' for nil:NilClass when trying to << to a node. #781
  * (JRuby) Fixed "bad file descriptor" bug when closing open file descriptors. #495
  * (JRuby) JRuby/CRuby incompatibility for attribute decorators. #785
  * (JRuby) Issues parsing valid XML with no internal subset in the DTD. #547, #811
  * (JRuby) Issues parsing valid node content when it contains colons. #728
  * (JRuby) Correctly parse the doc type of html documents. #733
  * (JRuby) Include dtd in the xml output when a builder is used with create_internal_subset. #751
  * (JRuby) builder requires textwrappers for valid utf8 in jruby, not in mri. #784


=== 1.5.5 / 2012-06-24

* Features

  * Much-improved support for JRuby in 1.9 mode! Yay!

* Bugfixes

  * Regression in JRuby Nokogiri add_previous_sibling (1.5.0 -> 1.5.1) #691 (Thanks, John Shahid!)
  * JRuby unable to create HTML doc if URL arg provided #674 (Thanks, John Shahid!)
  * JRuby raises NullPointerException when given HTML document is nil or empty string. #699
  * JRuby 1.9 error, uncaught throw 'encoding_found', has been fixed. #673
  * Invalid encoding returned in JRuby with US-ASCII. #583
  * XmlSaxPushParser raises IndexOutOfBoundsException when over 512 characters are given. #567, #615
  * When xpath evaluation returns empty NodeSet, decorating NodeSet's base document raises exception. #514
  * JRuby raises exception when xpath with namespace is specified. pull request #681 (Thanks, Piotr Szmielew)
  * JRuby renders nodes without their namespace when subclassing Node. #695
  * JRuby raises NAMESPACE_ERR (org.w3c.dom.DOMException) while instantiating RDF::RDFXML::Writer. #683
  * JRuby is not able to use namespaces in xpath. #493
  * JRuby's Entity resolving should be consistent with C-Nokogiri #704, #647, #703


=== 1.5.4 / 2012-06-12

* Features

  * The "nokogiri" script now has more verbose output when passed the `--rng` option. #675 (Thanks, Dan Radez!)
  * Build support on hardened Debian systems that use `-Werror=format-security`. #680.
  * Better build support for systems with pkg-config. #584
  * Better build support for systems with multiple iconv installations.

* Bugfixes

  * Segmentation fault when creating a comment node for a DocumentFragment. #677, #678.
  * Treat '.' as xpath in at() and search(). #690

  * (MRI, Security) Default parse options for XML documents were
    changed to not make network connections during document parsing,
    to avoid XXE vulnerability. #693

    To re-enable this behavior, the configuration method `nononet` may
    be called, like this:

    Nokogiri::XML::Document.parse(xml) { |config| config.nononet }

    Insert your own joke about double-negatives here.


=== 1.5.3 / 2012-06-01

* Features

  * Support for "prefixless" CSS selectors ~, > and + like jQuery
    supports. #621, #623. (Thanks, David Lee!)
  * Attempting to improve installation on homebrew 0.9 (with regards
    to iconv). Isn't package management convenient?

* Bugfixes

  * Custom xpath functions with empty nodeset arguments cause a
    segfault. #634.
  * Nokogiri::XML::Node#css now works for XML documents with default
    namespaces when the rule contains attribute selector without
    namespace.
  * Fixed marshalling bugs around how arguments are passed to (and
    returned from) XSLT custom xpath functions. #640.
  * Nokogiri::XML::Reader#outer_xml is broken in JRuby #617
  * Nokogiri::XML::Attribute on JRuby returns a nil namespace #647
  * Nokogiri::XML::Node#namespace= cannot set a namespace without a
    prefix on JRuby #648
  * (JRuby) 1.9 mode causes dead lock while running rake #571
  * HTML::Document#meta_encoding does not raise exception on docs with
    malformed content-type. #655
  * Fixing segfault related to unsupported encodings in in-context
    parsing on 1.8.7. #643
  * (JRuby) Concurrency issue in XPath parsing. #682


=== 1.5.2 / 2012-03-09

Repackaging of 1.5.1 with a gemspec that is compatible with older Rubies. #631, #632.


=== 1.5.1 / 2012-03-09

* Features

  * XML::Builder#comment allows creation of comment nodes.
  * CSS searches now support namespaced attributes. #593
  * Java integration feature is added. Now, XML::Document.wrap
    and XML::Document#to_java methods are available.
  * RelaxNG validator support in the `nokogiri` cli utility. #591 (thanks, Dan Radez!)

* Bugfixes

  * Fix many memory leaks and segfault opportunities. Thanks, Tim Elliott!
  * extconf searches homebrew paths if homebrew is installed.
  * Inconsistent behavior of Nokogiri 1.5.0 Java #620
  * Inheriting from Nokogiri::XML::Node on JRuby (1.6.4/5) fails #560
  * XML::Attr nodes are not allowed to be added as node children, so an
    exception is raised. #558
  * No longer defensively "pickle" adjacent text nodes on
    Node#add_next_sibling and Node#add_previous_sibling calls. #595.
  * Java version inconsistency: it returns nil for empty attributes #589
  * to_xhtml incorrectly generates <p /></p> when tag is empty #557
  * Document#add_child now accepts a Node, NodeSet, DocumentFragment,
    or String. #546.
  * Document#create_element now recognizes namespaces containing
    non-word characters (like "SOAP-ENV"). This is mostly relevant to
    users of Builder, which calls Document#create_element for nearly
    everything. #531.
  * File encoding broken in 1.5.0 / jruby / windows #529
  * Java version does not return namespace defs as attrs for ::HTML #542
  * Bad file descriptor with Nokogiri 1.5.0 #495
  * remove_namespace! doesn't work in pure java version #492
  * The Nokogiri Java native build throws a null pointer exception
    when ActiveSupport's .blank? method is called directly on a parsed
    object. #489
  * 1.5.0 Not using correct character encoding #488
  * Raw XML string in XML Builder broken on JRuby #486
  * Nokogiri 1.5.0 XML generation broken on JRuby #484
  * Do not allow multiple root nodes. #550
  * Fixes for custom XPath functions. #605, #606 (thanks, Juan Wajnerman!)
  * Node#to_xml does not override :save_with if it is provided. #505
  * Node#set is a private method (JRuby). #564 (thanks, Nick Sieger!)
  * C14n cleanup and Node#canonicalize (thanks, Ivan Pirlik!) #563


=== 1.5.0 / 2011-07-01

* Notes

  * See changelog from 1.4.7

* Features

  * extracted sets of Node::SaveOptions into Node::SaveOptions::DEFAULT_{X,H,XH}TML (refactor)

* Bugfixes

  * default output of XML on JRuby is no longer formatted due to
    inconsistent whitespace handling. #415
  * (JRuby) making empty NodeSets with null `nodes` member safe to operate on. #443
  * Fix a bug in advanced encoding detection that leads to partially
    duplicated document when parsing an HTML file with unknown
    encoding.
  * Add support for <meta charset="...">.


=== 1.5.0 beta3 / 2010/12/02

* Notes

  * JRuby performance tuning
  * See changelog from 1.4.4

* Bugfixes

  * Node#inner_text no longer returns nil. (JRuby) #264


=== 1.5.0 beta2 / 2010/07/30

* Notes

  * See changelog from 1.4.3


=== 1.5.0 beta1 / 2010/05/22

* Notes

  * JRuby support is provided by a new pure-java backend.

* Deprecations

  * Ruby 1.8.6 is deprecated. Nokogiri will install, but official support is ended.
  * LibXML 2.6.16 and earlier are deprecated. Nokogiri will refuse to install.
  * FFI support is removed.


=== 1.4.7 / 2011-07-01

* Bugfixes

  * Fix a bug in advanced encoding detection that leads to partially
    duplicated document when parsing an HTML file with unknown
    encoding. Thanks, Timothy Elliott (@ender672)! #478


=== 1.4.6 / 2011-06-19

* Notes

  * This version is functionally identical to 1.4.5.
  * Ruby 1.8.6 support has been restored.


=== 1.4.5 / 2011-05-19

* New Features

  * Nokogiri::HTML::Document#title accessor gets and sets the document title.
  * extracted sets of Node::SaveOptions into Node::SaveOptions::DEFAULT_{X,H,XH}TML (refactor)
  * Raise an exception if a string is passed to Nokogiri::XML::Schema#validate. #406

* Bugfixes

  * Node#serialize-and-friends now accepts a SaveOption object as the, erm, save object.
  * Nokogiri::CSS::Parser has-a Nokogiri::CSS::Tokenizer
  * (JRUBY+FFI only) Weak references are now threadsafe. #355
  * Make direct start_element() callback (currently used for
    HTML::SAX::Parser) pass attributes in assoc array, just as
    emulated start_element() callback does.  rel. #356
  * HTML::SAX::Parser should call back a block given to parse*() if any, just as XML::SAX::Parser does.
  * Add further encoding detection to HTML parser that libxml2 does not do.
  * Document#remove_namespaces! now handles attributes with namespaces. #396
  * XSLT::Stylesheet#transform no longer segfaults when handed a non-XML::Document. #452
  * XML::Reader no longer segfaults when under GC pressure. #439


=== 1.4.4 / 2010-11-15

* New Features

  * XML::Node#children= sets the node's inner html (much like #inner_html=), but returns the reparent node(s).
  * XSLT supports function extensions. #336
  * XPath bind parameter substitution. #329
  * XML::Reader node type constants. #369
  * SAX Parser context provides line and column information

* Bugfixes

  * XML::DTD#attributes returns an empty hash instead of nil when there are no attributes.
  * XML::DTD#{keys,each} now work as expected. #324
  * {XML,HTML}::DocumentFragment.{new,parse} no longer strip leading and trailing whitespace. #319
  * XML::Node#{add_child,add_previous_sibling,add_next_sibling,replace} return a NodeSet when passed a string.
  * Unclosed tags parsed more robustly in fragments. #315
  * XML::Node#{replace,add_previous_sibling,add_next_sibling} edge cases fixed related to libxml's text node merging. #308
  * Fixed a segfault when GC occurs during xpath handler argument marshalling. #345
  * Added hack to Slop decorator to work with previously defined methods. #330
  * Fix a memory leak when duplicating child nodes. #353
  * Fixed off-by-one bug with nth-last-{child,of-type} CSS selectors when NOT using an+b notation. #354
  * Fixed passing of non-namespace attributes to SAX::Document#start_element. #356
  * Workaround for libxml2 in-context parsing bug. #362
  * Fixed NodeSet#wrap on nodes within a fragment. #331


=== 1.4.3 / 2010/07/28

* New Features

  * XML::Reader#empty_element? returns true for empty elements. #262
  * Node#remove_namespaces! now removes namespace *declarations* as well. #294
  * NodeSet#at_xpath, NodeSet#at_css and NodeSet#> do what the corresponding
    methods of Node do.

* Bugfixes

  * XML::NodeSet#{include?,delete,push} accept an XML::Namespace
  * XML::Document#parse added for parsing in the context of a document
  * XML::DocumentFragment#inner_html= works with contextual parsing! #298, #281
  * lib/nokogiri/css/parser.y Combined CSS functions + pseudo selectors fixed
  * Reparenting text nodes is safe, even when the operation frees adjacent merged nodes. #283
  * Fixed libxml2 versionitis issue with xmlFirstElementChild et al. #303
  * XML::Attr#add_namespace now works as expected. #252
  * HTML::DocumentFragment uses the string's encoding. #305
  * Fix the CSS3 selector translation rule for the general sibling combinator
    (a.k.a. preceding selector) that incorrectly converted "E ~ F G" to
    "//F//G[preceding-sibling::E]".


=== 1.4.2 / 2010/05/22

* New Features

  * XML::Node#parse will parse XML or HTML fragments with respect to the
    context node.
  * XML::Node#namespaces returns all namespaces defined in the node and all
    ancestor nodes
    (previously did not return ancestors' namespace definitions).
  * Added Enumerable to XML::Node
  * Nokogiri::XML::Schema#validate now uses xmlSchemaValidateFile if a
    filename is passed, which is faster and more memory-efficient. GH #219
  * XML::Document#create_entity will create new EntityDecl objects. GH #174
  * JRuby FFI implementation no longer uses ObjectSpace._id2ref,
    instead using Charles Nutter's rocking Weakling gem.
  * Nokogiri::XML::Node#first_element_child fetch the first child node that is
    an ELEMENT node.
  * Nokogiri::XML::Node#last_element_child fetch the last child node that is
    an ELEMENT node.
  * Nokogiri::XML::Node#elements fetch all children nodes that are ELEMENT
    nodes.
  * Nokogiri::XML::Node#add_child, #add_previous_sibling, #before,
    #add_next_sibling, #after, #inner_html, #swap and #replace all now
    accept a Node, DocumentFragment, NodeSet, or a string containing
    markup.
  * Node#fragment? indicates whether a node is a DocumentFragment.

* Bugfixes

  * XML::NodeSet is now always decorated (if the document has decorators).
    GH #198
  * XML::NodeSet#slice gracefully handles offset+length larger than the set
    length. GH #200
  * XML::Node#content= safely unlinks previous content. GH #203
  * XML::Node#namespace= takes nil as a parameter
  * XML::Node#xpath returns things other than NodeSet objects. GH #208
  * XSLT::StyleSheet#transform accepts hashes for parameters. GH #223
  * Psuedo selectors inside not() work. GH #205
  * XML::Builder doesn't break when nodes are unlinked.
    Thanks to vihai! GH #228
  * Encoding can be forced on the SAX parser. Thanks Eugene Pimenov! GH #204
  * XML::DocumentFragment uses XML::Node#parse to determine children.
  * Fixed a memory leak in xml reader. Thanks sdor! GH #244
  * Node#replace returns the new child node as claimed in the
    RDoc. Previously returned +self+.

* Notes

  * The Windows gems now bundle DLLs for libxml 2.7.6 and libxslt
    1.1.26. Prior to this release, libxml 2.7.3 and libxslt 1.1.24
    were bundled.


=== 1.4.1 / 2009/12/10

* New Features

  * Added Nokogiri::LIBXML_ICONV_ENABLED
  * Alias Node#[] to Node#attr
  * XML::Node#next_element added
  * XML::Node#> added for searching a nodes immediate children
  * XML::NodeSet#reverse added
  * Added fragment support to Node#add_child, Node#add_next_sibling,
    Node#add_previous_sibling, and Node#replace.
  * XML::Node#previous_element implemented
  * Rubinius support
  * Ths CSS selector engine now supports :has()
  * XML::NodeSet#filter() was added
  * XML::Node.next= and .previous= are aliases for add_next_sibling and add_previous_sibling. GH #183

* Bugfixes

  * XML fragments with namespaces do not raise an exception (regression in 1.4.0)
  * Node#matches? works in nodes contained by a DocumentFragment. GH #158
  * Document should not define add_namespace() method. GH #169
  * XPath queries returning namespace declarations do not segfault.
  * Node#replace works with nodes from different documents. GH #162
  * Adding XML::Document#collect_namespaces
  * Fixed bugs in the SOAP4R adapter
  * Fixed bug in XML::Node#next_element for certain edge cases
  * Fixed load path issue with JRuby under Windows. GH #160.
  * XSLT#apply_to will honor the "output method". Thanks richardlehane!
  * Fragments containing leading text nodes with newlines now parse properly. GH #178.


=== 1.4.0 / 2009/10/30

* Happy Birthday!

* New Features

  * Node#at_xpath returns the first element of the NodeSet matching the XPath
    expression.
  * Node#at_css returns the first element of the NodeSet matching the CSS
    selector.
  * NodeSet#| for unions GH #119 (Thanks Serabe!)
  * NodeSet#inspect makes prettier output
  * Node#inspect implemented for more rubyish document inspecting
  * Added XML::DTD#external_id
  * Added XML::DTD#system_id
  * Added XML::ElementContent for DTD Element content validity
  * Better namespace declaration support in Nokogiri::XML::Builder
  * Added XML::Node#external_subset
  * Added XML::Node#create_external_subset
  * Added XML::Node#create_internal_subset
  * XML Builder can append raw strings (GH #141, patch from dudleyf)
  * XML::SAX::ParserContext added
  * XML::Document#remove_namespaces! for the namespace-impaired

* Bugfixes

  * returns nil when HTML documents do not declare a meta encoding tag. GH #115
  * Uses RbConfig::CONFIG['host_os'] to adjust ENV['PATH'] GH #113
  * NodeSet#search is more efficient GH #119 (Thanks Serabe!)
  * NodeSet#xpath handles custom xpath functions
  * Fixing a SEGV when XML::Reader gets attributes for current node
  * Node#inner_html takes the same arguments as Node#to_html GH #117
  * DocumentFragment#css delegates to it's child nodes GH #123
  * NodeSet#[] works with slices larger than NodeSet#length GH #131
  * Reparented nodes maintain their namespace. GH #134
  * Fixed SEGV when adding an XML::Document to NodeSet
  * XML::SyntaxError can be duplicated. GH #148

* Deprecations

  * Hpricot compatibility layer removed


=== 1.3.3 / 2009/07/26

* New Features

  * NodeSet#children returns all children of all nodes

* Bugfixes

  * Override libxml-ruby's global error handler
  * ParseOption#strict fixed
  * Fixed a segfault when sending an empty string to Node#inner_html= GH #88
  * String encoding is now set to UTF-8 in Ruby 1.9
  * Fixed a segfault when moving root nodes between documents. GH #91
  * Fixed an O(n) penalty on node creation. GH #101
  * Allowing XML documents to be output as HTML documents

* Deprecations

  * Hpricot compatibility layer will be removed in 1.4.0


=== 1.3.2 / 2009-06-22

* New Features

  * Nokogiri::XML::DTD#validate will validate your document

* Bugfixes

  * Nokogiri::XML::NodeSet#search will search top level nodes. GH #73
  * Removed namespace related methods from Nokogiri::XML::Document
  * Fixed a segfault when a namespace was added twice
  * Made nokogiri work with Snow Leopard GH #79
  * Mailing list has moved to: http://groups.google.com/group/nokogiri-talk
  * HTML fragments now correctly handle comments and CDATA blocks. GH #78
  * Nokogiri::XML::Document#clone is now an alias of dup

* Deprecations

  * Nokogiri::XML::SAX::Document#start_element_ns is deprecated, please switch
    to Nokogiri::XML::SAX::Document#start_element_namespace
  * Nokogiri::XML::SAX::Document#end_element_ns is deprecated, please switch
    to Nokogiri::XML::SAX::Document#end_element_namespace


=== 1.3.1 / 2009-06-07

* Bugfixes

  * extconf.rb checks for optional RelaxNG and Schema functions
  * Namespace nodes are added to the Document node cache


=== 1.3.0 / 2009-05-30

* New Features

  * Builder changes scope based on block arity
  * Builder supports methods ending in underscore similar to tagz
  * Nokogiri::XML::Node#<=> compares nodes based on Document position
  * Nokogiri::XML::Node#matches? returns true if Node can be found with
    given selector.
  * Nokogiri::XML::Node#ancestors now returns an Nokogiri::XML::NodeSet
  * Nokogiri::XML::Node#ancestors will match parents against optional selector
  * Nokogiri::HTML::Document#meta_encoding for getting the meta encoding
  * Nokogiri::HTML::Document#meta_encoding= for setting the meta encoding
  * Nokogiri::XML::Document#encoding= to set the document encoding
  * Nokogiri::XML::Schema for validating documents against XSD schema
  * Nokogiri::XML::RelaxNG for validating documents against RelaxNG schema
  * Nokogiri::HTML::ElementDescription for fetching HTML element descriptions
  * Nokogiri::XML::Node#description to fetch the node description
  * Nokogiri::XML::Node#accept implements Visitor pattern
  * bin/nokogiri for easily examining documents (Thanks Yutaka HARA!)
  * Nokogiri::XML::NodeSet now supports more Array and Enumerable operators:
    index, delete, slice, - (difference), + (concatenation), & (intersection),
    push, pop, shift, ==
  * Nokogiri.XML, Nokogiri.HTML take blocks that receive
    Nokogiri::XML::ParseOptions objects
  * Nokogiri::XML::Node#namespace returns a Nokogiri::XML::Namespace
  * Nokogiri::XML::Node#namespace= for setting a node's namespace
  * Nokogiri::XML::DocumentFragment and Nokogiri::HTML::DocumentFragment
    have a sensible API and a more robust implementation.
  * JRuby 1.3.0 support via FFI.

* Bugfixes

  * Fixed a problem with nil passed to CDATA constructor
  * Fragment method deals with regular expression characters
    (Thanks Joel!) LH #73
  * Fixing builder scope issues LH #61, LH #74, LH #70
  * Fixed a problem when adding a child could remove the child namespace LH#78
  * Fixed bug with unlinking a node then reparenting it. (GH#22)
  * Fixed failure to catch errors during XSLT parsing (GH#32)
  * Fixed a bug with attribute conditions in CSS selectors (GH#36)
  * Fixed intolerance of HTML attributes without values in Node#before/after/inner_html=. (GH#35)


=== 1.2.3 / 2009-03-22

* Bugfixes

  * Fixing bug where a node is passed in to Node#new
  * Namespace should be assigned on DocumentFragment creation. LH #66
  * Nokogiri::XML::NodeSet#dup works GH #10
  * Nokogiri::HTML returns an empty Document when given a blank string GH#11
  * Adding a child will remove duplicate namespace declarations LH #67
  * Builder methods take a hash as a second argument


=== 1.2.2 / 2009-03-14

* New features

  * Nokogiri may be used with soap4r. See XSD::XMLParser::Nokogiri
  * Nokogiri::XML::Node#inner_html= to set the inner html for a node
  * Nokogiri builder interface improvements
  * Nokogiri::XML::Node#swap swaps html for current node (LH #50)

* Bugfixes

  * Fixed a tag nesting problem in the Builder API (LH #41)
  * Nokogiri::HTML.fragment will properly handle text only nodes (LH #43)
  * Nokogiri::XML::Node#before will prepend text nodes (LH #44)
  * Nokogiri::XML::Node#after will append text nodes
  * Nokogiri::XML::Node#search automatically registers root namespaces (LH #42)
  * Nokogiri::XML::NodeSet#search automatically registers namespaces
  * Nokogiri::HTML::NamedCharacters delegates to libxml2
  * Nokogiri::XML::Node#[] can take a symbol (LH #48)
  * vasprintf for windows updated.  Thanks Geoffroy Couprie!
  * Nokogiri::XML::Node#[]= should not encode entities (LH #55)
  * Namespaces should be copied to reparented nodes (LH #56)
  * Nokogiri uses encoding set on the string for default in Ruby 1.9
  * Document#dup should create a new document of the same type (LH #59)
  * Document should not have a parent method (LH #64)


=== 1.2.1 / 2009-02-23

* Bugfixes

  * Fixed a CSS selector space bug
  * Fixed Ruby 1.9 String Encoding (Thanks 角谷さん！)


=== 1.2.0 / 2009-02-22

* New features

  * CSS search now supports CSS3 namespace queries
  * Namespaces on the root node are automatically registered
  * CSS queries use the default namespace
  * Nokogiri::XML::Document#encoding get encoding used for this document
  * Nokogiri::XML::Document#url get the document url
  * Nokogiri::XML::Node#add_namespace add a namespace to the node LH#38
  * Nokogiri::XML::Node#each iterate over attribute name, value pairs
  * Nokogiri::XML::Node#keys get all attribute names
  * Nokogiri::XML::Node#line get the line number for a node (Thanks Dirkjan Bussink!)
  * Nokogiri::XML::Node#serialize now takes an optional encoding parameter
  * Nokogiri::XML::Node#to_html, to_xml, and to_xhtml take an optional encoding
  * Nokogiri::XML::Node#to_str
  * Nokogiri::XML::Node#to_xhtml to produce XHTML documents
  * Nokogiri::XML::Node#values get all attribute values
  * Nokogiri::XML::Node#write_to writes the node to an IO object with optional encoding
  * Nokogiri::XML::ProcessingInstrunction.new
  * Nokogiri::XML::SAX::PushParser for all your push parsing needs.

* Bugfixes

  * Fixed Nokogiri::XML::Document#dup
  * Fixed header detection. Thanks rubikitch!
  * Fixed a problem where invalid CSS would cause the parser to hang

* Deprecations

  * Nokogiri::XML::Node.new_from_str will be deprecated in 1.3.0

* API Changes

  * Nokogiri::HTML.fragment now returns an XML::DocumentFragment (LH #32)


=== 1.1.1

* New features

  * Added XML::Node#elem?
  * Added XML::Node#attribute_nodes
  * Added XML::Attr
  * XML::Node#delete added.
  * XML::NodeSet#inner_html added.

* Bugfixes

  * Not including an HTML entity for \r for HTML nodes.
  * Removed CSS::SelectorHandler and XML::XPathHandler
  * XML::Node#attributes returns an Attr node for the value.
  * XML::NodeSet implements to_xml


=== 1.1.0

* New Features

  * Custom XPath functions are now supported.  See Nokogiri::XML::Node#xpath
  * Custom CSS pseudo classes are now supported.  See Nokogiri::XML::Node#css
  * Nokogiri::XML::Node#<< will add a child to the current node

* Bugfixes

  * Mutex lock on CSS cache access
  * Fixed build problems with GCC 3.3.5
  * XML::Node#to_xml now takes an indentation argument
  * XML::Node#dup takes an optional depth argument
  * XML::Node#add_previous_sibling returns new sibling node.


=== 1.0.7

* Bugfixes

  * Fixed memory leak when using Dike
  * SAX parser now parses IO streams
  * Comment nodes have their own class
  * Nokogiri() should delegate to Nokogiri.parse()
  * Prepending rather than appending to ENV['PATH'] on windows
  * Fixed a bug in complex CSS negation selectors


=== 1.0.6

* 5 Bugfixes

  * XPath Parser raises a SyntaxError on parse failure
  * CSS Parser raises a SyntaxError on parse failure
  * filter() and not() hpricot compatibility added
  * CSS searches via Node#search are now always relative
  * CSS to XPath conversion is now cached


=== 1.0.5

* Bugfixes

  * Added mailing list and ticket tracking information to the README.txt
  * Sets ENV['PATH'] on windows if it doesn't exist
  * Caching results of NodeSet#[] on Document


=== 1.0.4

* Bugfixes

  * Changed memory management from weak refs to document refs
  * Plugged some memory leaks
  * Builder blocks can call methods from surrounding contexts


=== 1.0.3

* 5 Bugfixes

  * NodeSet now implements to_ary
  * XML::Document should not implement parent
  * More GC Bugs fixed.  (Mike is AWESOME!)
  * Removed RARRAY_LEN for 1.8.5 compatibility.  Thanks Shane Hanna.
  * inner_html fixed. (Thanks Yehuda!)


=== 1.0.2

* 1 Bugfix

  * extconf.rb should not check for frex and racc


=== 1.0.1

* 1 Bugfix

  * Made sure extconf.rb searched libdir and prefix so that ports libxml/ruby
    will link properly.  Thanks lucsky!


=== 1.0.0 / 2008-07-13

* 1 major enhancement

  * Birthday!
