NEWS ( CHANGELOG and HISTORY )                                     HTMLPurifier

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= KEY ====================

    # Breaks back-compat

    ! Feature

    - Bugfix

      + Sub-comment

    . Internal change

==========================

4.7.0, released 2015-08-04

# opacity is now considered a "tricky" CSS property rather than a

  proprietary one.

! %AutoFormat.RemoveEmpty.Predicate for specifying exactly when

  an element should be considered "empty" (maybe preserve if it

  has attributes), and modify iframe support so that the iframe

  is removed if it is missing a src attribute.  Thanks meeva for

  reporting.

- Don't truncate upon encountering </div> when using DOMLex.  Thanks

  Myrto Christina for finally convincing me to fix this.

- Update YouTube filter for new code.

- Fix parsing of rgb() values with spaces in them for 'border'

  attribute.

- Don't remove foo="" attributes if foo is a boolean attribute.  Thanks

  valME for reporting.

4.6.0, released 2013-11-30

# Secure URI munge hashing algorithm has changed to hash_hmac("sha256", $url, $secret).

  Please update any verification scripts you may have.

# URI parsing algorithm was made more strict, so only prefixes which

  looks like schemes will actually be schemes.  Thanks

  Michael Gusev <mgusev@sugarcrm.com> for fixing.

# %Core.EscapeInvalidChildren is no longer supported, and no longer does

  anything.

! New directive %Core.AllowHostnameUnderscore which allows underscores

  in hostnames.

- Eliminate quadratic behavior in DOMLex by using a proper queue.

  Thanks Ole Laursen for noticing this.

- Rewritten MakeWellFormed/FixNesting implementation eliminates quadratic

  behavior in the rest of the purificaiton pipeline.  Thanks Chedburn

  Networks for sponsoring this work.

- Made Linkify URL parser a bit less permissive, so that non-breaking

  spaces and commas are not included as part of URL.  Thanks nAS for fixing.

- Fix some bad interactions with %HTML.Allowed and injectors.  Thanks

  David Hirtz for reporting.

- Fix infinite loop in DirectLex. Thanks Ashar Javed (@soaj1664ashar)

  for reporting.

4.5.0, released 2013-02-17

# Fix bug where stacked attribute transforms clobber each other;

  this also means it's no longer possible to override attribute

  transforms in later modules.  No internal code was using this

  but this may break some clients.

# We now use SHA-1 to identify cached definitions, instead of MD5.

! Support display:inline-block

! Support for more white-space CSS values.

! Permit underscores in font families

! Support for page-break-* CSS3 properties when proprietary properties

  are enabled.

! New directive %Core.DisableExcludes; can be set to 'true' to turn off

  SGML excludes checking.  If HTML Purifier is removing too much text

  and you don't care about full standards compliance, try setting this to

  'true'.

- Use prepend for SPL autoloading on PHP 5.3 and later.

- Fix bug with nofollow transform when pre-existing rel exists.

- Fix bug where background:url() always gets lower-cased

  (but not background-image:url())

- Fix bug with non lower-case color names in HTML

- Fix bug where data URI validation doesn't remove temporary files.

  Thanks Javier Marín Ros <javiermarinros@gmail.com> for reporting.

- Don't remove certain empty tags on RemoveEmpty.

4.4.0, released 2012-01-18

# Removed PEARSax3 handler.

# URI.Munge now munges URIs inside the same host that go from https

  to http.  Reported by Neike Taika-Tessaro.

# Core.EscapeNonASCIICharacters now always transforms entities to

  entities, even if target encoding is UTF-8.

# Tighten up selector validation in ExtractStyleBlocks.

  Non-syntactically valid selectors are now rejected, along with

  some of the more obscure ones such as attribute selectors, the

  :lang pseudoselector, and anything not in CSS2.1.  Furthermore,

  ID and class selectors now work properly with the relevant

  configuration attributes.  Also, mute errors when parsing CSS

  with CSS Tidy.  Reported by Mario Heiderich and Norman Hippert.

! Added support for 'scope' attribute on tables.

! Added %HTML.TargetBlank, which adds target="blank" to all outgoing links.

! Properly handle sub-lists directly nested inside of lists in

  a standards compliant way, by moving them into the preceding <li>

! Added %HTML.AllowedComments and %HTML.AllowedCommentsRegexp for

  limited allowed comments in untrusted situations.

! Implement iframes, and allow them to be used in untrusted mode with

  %HTML.SafeIframe and %URI.SafeIframeRegexp.  Thanks Bradley M. Froehle

  <brad.froehle@gmail.com> for submitting an initial version of the patch.

! The Forms module now works properly for transitional doctypes.

! Added support for internationalized domain names. You need the PEAR

  Net_IDNA2 module to be in your path; if it is installed, ensure the

  class can be loaded and then set %Core.EnableIDNA to true.

- Color keywords are now case insensitive.  Thanks Yzmir Ramirez

  <yramirez-htmlpurifier@adicio.com> for reporting.

- Explicitly initialize anonModule variable to null.

- Do not duplicate nofollow if already present.  Thanks 178

  for reporting.

- Do not add nofollow if hostname matches our current host.  Thanks 178

  for reporting, and Neike Taika-Tessaro for helping diagnose.

- Do not unset parser variable; this fixes intermittent serialization

  problems.  Thanks Neike Taika-Tessaro for reporting, bill

  <10010tiger@gmail.com> for diagnosing.

- Fix iconv truncation bug, where non-UTF-8 target encodings see

  output truncated after around 8000 characters.  Thanks Jörg Ludwig

  <joerg.ludwig@iserv.eu> for reporting.

- Fix broken table content model for XHTML1.1 (and also earlier

  versions, although the W3C validator doesn't catch those violations).

  Thanks GlitchMr <glitch.mr@gmail.com> for reporting.

4.3.0, released 2011-03-27

# Fixed broken caching of customized raw definitions, but requires an

  API change.  The old API still works but will emit a warning,

  see http://htmlpurifier.org/docs/enduser-customize.html#optimized

  for how to upgrade your code.

# Protect against Internet Explorer innerHTML behavior by specially

  treating attributes with backticks but no angled brackets, quotes or

  spaces.  This constitutes a slight semantic change, which can be

  reverted using %Output.FixInnerHTML.  Reported by Neike Taika-Tessaro

  and Mario Heiderich.

# Protect against cssText/innerHTML by restricting allowed characters

  used in fonts further than mandated by the specification and encoding

  some extra special characters in URLs.  Reported by Neike

  Taika-Tessaro and Mario Heiderich.

! Added %HTML.Nofollow to add rel="nofollow" to external links.

! More types of SPL autoloaders allowed on later versions of PHP.

! Implementations for position, top, left, right, bottom, z-index

  when %CSS.Trusted is on.

! Add %Cache.SerializerPermissions option for custom serializer

  directory/file permissions

! Fix longstanding bug in Flash support for non-IE browsers, and

  allow more wmode attributes.

! Add %CSS.AllowedFonts to restrict permissible font names.

- Switch to an iterative traversal of the DOM, which prevents us

  from running out of stack space for deeply nested documents.

  Thanks Maxim Krizhanovsky for contributing a patch.

- Make removal of conditional IE comments ungreedy; thanks Bernd

  for reporting.

- Escape CDATA before removing Internet Explorer comments.

- Fix removal of id attributes under certain conditions by ensuring

  armor attributes are preserved when recreating tags.

- Check if schema.ser was corrupted.

- Check if zend.ze1_compatibility_mode is on, and error out if it is.

  This safety check is only done for HTMLPurifier.auto.php; if you

  are using standalone or the specialized includes files, you're

  expected to know what you're doing.

- Stop repeatedly writing the cache file after I'm done customizing a

  raw definition.  Reported by ajh.

- Switch to using require_once in the Bootstrap to work around bad

  interaction with Zend Debugger and APC.  Reported by Antonio Parraga.

- Fix URI handling when hostname is missing but scheme is present.

  Reported by Neike Taika-Tessaro.

- Fix missing numeric entities on DirectLex; thanks Neike Taika-Tessaro

  for reporting.

- Fix harmless notice from indexing into empty string.  Thanks Matthijs

  Kooijman <matthijs@stdin.nl> for reporting.

- Don't autoclose no parent elements are able to support the element

  that triggered the autoclose.  In particular fixes strange behavior

  of stray <li> tags.  Thanks pkuliga@gmail.com for reporting and

  Neike Taika-Tessaro <pinkgothic@gmail.com> for debugging assistance.

4.2.0, released 2010-09-15

! Added %Core.RemoveProcessingInstructions, which lets you remove

  <? ... ?> statements.

! Added %URI.DisableResources functionality; the directive originally

  did nothing.  Thanks David Rothstein for reporting.

! Add documentation about configuration directive types.

! Add %CSS.ForbiddenProperties configuration directive.

! Add %HTML.FlashAllowFullScreen to permit embedded Flash objects

  to utilize full-screen mode.

! Add optional support for the <code>file</code> URI scheme, enable

  by explicitly setting %URI.AllowedSchemes.

! Add %Core.NormalizeNewlines options to allow turning off newline

  normalization.

- Fix improper handling of Internet Explorer conditional comments

  by parser.  Thanks zmonteca for reporting.

- Fix missing attributes bug when running on Mac Snow Leopard and APC.

  Thanks sidepodcast for the fix.

- Warn if an element is allowed, but an attribute it requires is

  not allowed.

4.1.1, released 2010-05-31

- Fix undefined index warnings in maintenance scripts.

- Fix bug in DirectLex for parsing elements with a single attribute

  with entities.

- Rewrite CSS output logic for font-family and url().  Thanks Mario

  Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi

  Terada <t-terada@violet.plala.or.jp> for suggesting the fix.

- Emit an error for CollectErrors if a body is extracted

- Fix bug where in background-position for center keyword handling.

- Fix infinite loop when a wrapper element is inserted in a context

  where it's not allowed.  Thanks Lars <lars@renoz.dk> for reporting.

- Remove +x bit and shebang from index.php; only supported mode is to

  explicitly call it with php.

- Make test script less chatty when log_errors is on.

4.1.0, released 2010-04-26

! Support proprietary height attribute on table element

! Support YouTube slideshows that contain /cp/ in their URL.

! Support for data: URI scheme; not enabled by default, add it using

  %URI.AllowedSchemes

! Support flashvars when using %HTML.SafeObject and %HTML.SafeEmbed.

! Support for Internet Explorer compatibility with %HTML.SafeObject

  using %Output.FlashCompat.

! Handle <ol><ol> properly, by inserting the necessary <li> tag.

- Always quote the insides of url(...) in CSS.

4.0.0, released 2009-07-07

# APIs for ConfigSchema subsystem have substantially changed. See

  docs/dev-config-bcbreaks.txt for details; in essence, anything that

  had both namespace and directive now have a single unified key.

# Some configuration directives were renamed, specifically:

    %AutoFormatParam.PurifierLinkifyDocURL -> %AutoFormat.PurifierLinkify.DocURL

    %FilterParam.ExtractStyleBlocksEscaping -> %Filter.ExtractStyleBlocks.Escaping

    %FilterParam.ExtractStyleBlocksScope -> %Filter.ExtractStyleBlocks.Scope

    %FilterParam.ExtractStyleBlocksTidyImpl -> %Filter.ExtractStyleBlocks.TidyImpl

  As usual, the old directive names will still work, but will throw E_NOTICE

  errors.

# The allowed values for class have been relaxed to allow all of CDATA for

  doctypes that are not XHTML 1.1 or XHTML 2.0.  For old behavior, set

  %Attr.ClassUseCDATA to false.

# Instead of appending the content model to an old content model, a blank

  element will replace the old content model.  You can use #SUPER to get

  the old content model.

! More robust support for name="" and id=""

! HTMLPurifier_Config::inherit($config) allows you to inherit one

  configuration, and have changes to that configuration be propagated

  to all of its children.

! Implement %HTML.Attr.Name.UseCDATA, which relaxes validation rules on

  the name attribute when set. Use with care. Thanks Ian Cook for

  sponsoring.

! Implement %AutoFormat.RemoveEmpty.RemoveNbsp, which removes empty

  tags that contain non-breaking spaces as well other whitespace. You

  can also modify which tags should have   maintained with

  %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions.

! Implement %Attr.AllowedClasses, which allows administrators to restrict

  classes users can use to a specified finite set of classes, and

  %Attr.ForbiddenClasses, which is the logical inverse.

! You can now maintain your own configuration schema directories by

  creating a config-schema.php file or passing an extra argument. Check

  docs/dev-config-schema.html for more details.

! Added HTMLPurifier_Config->serialize() method, which lets you save away

  your configuration in a compact serial file, which you can unserialize

  and use directly without having to go through the overhead of setup.

- Fix bug where URIDefinition would not get cleared if it's directives got

  changed.

- Fix fatal error in HTMLPurifier_Encoder on certain platforms (probably NetBSD 5.0)

- Fix bug in Linkify autoformatter involving <a><span>http://foo</span></a>

- Make %URI.Munge not apply to links that have the same host as your host.

- Prevent stray </body> tag from truncating output, if a second </body>

  is present.

. Created script maintenance/rename-config.php for renaming a configuration

  directive while maintaining its alias.  This script does not change source code.

. Implement namespace locking for definition construction, to prevent

  bugs where a directive is used for definition construction but is not

  used to construct the cache hash.

3.3.0, released 2009-02-16

! Implement CSS property 'overflow' when %CSS.AllowTricky is true.

! Implement generic property list classess

- Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation

  does not do the "right thing" with characters not supported in the output

  set.

- Spellcheck UTF-8: The Secret To Character Encoding

- Fix improper removal of the contents of elements with only whitespace. Thanks

  Eric Wald for reporting.

- Fix broken test suite in versions of PHP without spl_autoload_register()

- Fix degenerate case with YouTube filter involving double hyphens.

  Thanks Pierre Attar for reporting.

- Fix YouTube rendering problem on certain versions of Firefox.

- Fix CSSDefinition Printer problems with decorators

- Add text parameter to unit tests, forces text output

. Add verbose mode to command line test runner, use (--verbose)

. Turn on unit tests for UnitConverter

. Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)

. Fix newline errors that caused spurious failures when CRLF HTML Purifier was

  tested on Linux.

. Removed trailing whitespace from all text files, see

  remote-trailing-whitespace.php maintenance script.

. Convert configuration to use property list backend.

3.2.0, released 2008-10-31

# Using %Core.CollectErrors forces line number/column tracking on, whereas

  previously you could theoretically turn it off.

# HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please

  use handleEnd() instead.

! %Output.AttrSort for when you need your attributes in alphabetical order to

  deal with a bug in FCKEditor. Requested by frank farmer.

! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.

! Proper support for name attribute. It is now allowed and equivalent to the id

  attribute in a and img tags, and is only converted to id when %HTML.TidyLevel

  is heavy (for all doctypes).

! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't

  use on hand-written HTML.

! Add error-cases for unsupported elements in MakeWellFormed. This enables

  the strategy to be used, standalone, on untrusted input.

! %Core.AggressivelyFixLt is on by default. This causes more sensible

  processing of left angled brackets in smileys and other whatnot.

! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',

  'phpt', 'vtest', etc. in order to only execute those tests. This supercedes

  the --only-phpt parameter, although for backwards-compatibility the flag

  will still work.

! AutoParagraph auto-formatter will now preserve double-newlines upon output.

  Users who are not performing inbound filtering, this may seem a little

  useless, but as a bonus, the test suite and handling of edge cases is also

  improved.

! Experimental implementation of forms for %HTML.Trusted

! Track column numbers when maintain line numbers is on

! Proprietary 'background' attribute on table-related elements converted into

  corresponding CSS.  Thanks Fusemail for sponsoring this feature!

! Add forward(), forwardUntilEndToken(), backward() and current() to Injector

  supertype.

! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The

  time of operation varies slightly from notifyEnd() as *all* end tokens are

  processed by the injector before they are subject to the well-formedness rules.

! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to

  basename of image when not present.

! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.

- Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,

  the other involving an undefined $is_folder error.

- Throw error when %Core.Encoding is set to a spurious value. Previously,

  this errored silently and returned false.

- Redirected stderr to stdout for flush error output.

- %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not

  available.

- Do not re-munge URL if the output URL has the same host as the input URL.

  Requested by Chris.

- Fix error in documentation regarding %Filter.ExtractStyleBlocks

- Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment

- Fix bug with inline elements in blockquotes conflicting with strict doctype

- Detect if HTML support is disabled for DOM by checking for loadHTML() method.

- Fix bug where dots and double-dots in absolute URLs without hostname were

  not collapsed by URIFilter_MakeAbsolute.

- Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements

  by reordering their addition.

- Will now throw exception on many error conditions during lexer creation; also

  throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers

  is being used.

- Detect if domxml extension is loaded, and use DirectLEx accordingly.

- Improve handling of big numbers with floating point arithmetic in UnitConverter.

  Reported by David Morton.

. Strategy_MakeWellFormed now operates in-place, saving memory and allowing

  for more interesting filter-backtracking

. New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind

  index to reprocess tokens.

. StringHashParser now allows for multiline sections with "empty" content;

  previously the section would remain undefined.

. Added --quick option to multitest.php, which tests only the most recent

  release for each series.

. Added --distro option to multitest.php, which accepts either 'normal' or

  'standalone'. This supercedes --exclude-normal and --exclude-standalone

3.1.1, released 2008-06-19

# %URI.Munge now, by default, does not munge resources (for example, <img src="">)

  In order to enable this again, please set %URI.MungeResources to true.

! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,

  and height/width HTML with %HTML.MaxImgLength.

! %URI.MungeSecretKey for secure URI munging. Thanks Chris

  for sponsoring this feature. Check out the corresponding documentation

  for details. (Att Nightly testers: The API for this feature changed before

  the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>

  %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)

! Implemented post URI filtering. Set member variable $post to true to set

  a URIFilter as such.

! Allow modules to define injectors via $info_injector. Injectors are

  automatically disabled if injector's needed elements are not found.

! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.

  Thanks Chris for sponsoring. If you've been using ad hoc code from the

  forums, PLEASE use this instead.

! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,

  embedded, tag name, attribute name, CSS property name). See %URI.Munge

  for more details. Requested by Jochem Blok.

- Disable percent height/width attributes for img.

- AttrValidator operations are now atomic; updates to attributes are not

  manifest in token until end of operations. This prevents naughty internal

  code from directly modifying CurrentToken when they're not supposed to.

  This semantics change was requested by frank farmer.

- Percent encoding checks enabled for URI query and fragment

- Fix stray backslashes in font-family; CSS Unicode character escapes are

  now properly resolved (although *only* in font-family). Thanks Takeshi Terada

  for reporting.

- Improve parseCDATA algorithm to take into account newline normalization

- Account for browser confusion between Yen character and backslash in

  Shift_JIS encoding. This fix generalizes to any other encoding which is not

  a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.

- Fix missing configuration parameter in Generator calls. Thanks vs for the

  partial patch.

- Improved adherence to Unicode by checking for non-character codepoints.

  Thanks Geoffrey Sneddon for reporting. This may result in degraded

  performance for extremely large inputs.

- Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok

  for reporting.

. Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient

  handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses

  this class.

. API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)

  to __construct($min, $max). __construct(true) is equivalent to

  __construct('0').

. Added HTMLPurifier_AttrDef_Switch class

. Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method

  up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules

  get this called with the configuration object.  All modules now

  use this rather than __construct(), although legacy code using constructors

  will still work--the new format, however, lets modules access the

  configuration object for HTML namespace dependant tweaks.

. AttrDef_HTML_Pixels now takes a single construction parameter, pixels.

. ConfigSchema data-structure heavily optimized; on average it uses a third

  the memory it did previously. The interface has changed accordingly,

  consult changes to HTMLPurifier_Config for details.

. Variable parsing types now are magic integers instead of strings

. Added benchmark for ConfigSchema

. HTMLPurifier_Generator requires $config and $context parameters. If you

  don't know what they should be, use HTMLPurifier_Config::createDefault()

  and new HTMLPurifier_Context().

. Printers now properly distinguish between output configuration, and

  target configuration. This is not applicable to scripts using

  the Printers for HTML Purifier related tasks.

. HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise

  fatal errors will ensue.

. URIFilter->prepare can return false in order to abort loading of the filter

. Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds

  an external resource.

. %URI.Munge functionality factored out into a post-filter class.

. Added CurrentCSSProperty context variable during CSS validation

3.1.0, released 2008-05-18

# Unnecessary references to objects (vestiges of PHP4) removed from method

  signatures.  The following methods do not need references when assigning from

  them and will result in E_STRICT errors if you try:

    + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]

    + HTMLPurifier_ConfigSchema::instance()

    + HTMLPurifier_DefinitionCacheFactory::instance()

    + HTMLPurifier_DefinitionCacheFactory->create()

    + HTMLPurifier_DoctypeRegistry->register()

    + HTMLPurifier_DoctypeRegistry->get()

    + HTMLPurifier_HTMLModule->addElement()

    + HTMLPurifier_HTMLModule->addBlankElement()

    + HTMLPurifier_LanguageFactory::instance()

# Printer_ConfigForm's get*() functions were static-ified

# %HTML.ForbiddenAttributes requires attribute declarations to be in the

  form of tag@attr, NOT tag.attr (which will throw an error and won't do

  anything). This is for forwards compatibility with XML; you'd do best

  to migrate an %HTML.AllowedAttributes directives to this syntax too.

! Allow index to be false for config from form creation

! Added HTMLPurifier::VERSION constant

! Commas, not dashes, used for serializer IDs. This change is forwards-compatible

  and allows for version numbers like "3.1.0-dev".

! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!

! HTML Purifier's URI handling is a lot more robust, with much stricter

  validation checks and better percent encoding handling. Thanks Gareth Heyes

  for indicating security vulnerabilities from lax percent encoding.

! Bootstrap autoloader deals more robustly with classes that don't exist,

  preventing class_exists($class, true) from barfing.

- InterchangeBuilder now alphabetizes its lists

- Validation error in configdoc output fixed

- Iconv and other encoding errors muted even with custom error handlers that

  do not honor error_reporting

- Add protection against imagecrash attack with CSS height/width

- HTMLPurifier::instance() created for consistency, is equivalent to getInstance()

- Fixed and revamped broken ConfigForm smoketest

- Bug with bool/null fields in Printer_ConfigForm fixed

- Bug with global forbidden attributes fixed

- Improved error messages for allowed and forbidden HTML elements and attributes

- Missing (or null) in configdoc documentation restored

- If DOM throws and exception during parsing with PH5P (occurs in newer versions

  of DOM), HTML Purifier punts to DirectLex

- Fatal error with unserialization of ScriptRequired

- Created directories are now chmod'ed properly

- Fixed bug with fallback languages in LanguageFactory

- Standalone testing setup properly with autoload

. Out-of-date documentation revised

. UTF-8 encoding check optimization as suggested by Diego

. HTMLPurifier_Error removed in favor of exceptions

. More copy() function removed; should use clone instead

. More extensive unit tests for HTMLDefinition

. assertPurification moved to central harness

. HTMLPurifier_Generator accepts $config and $context parameters during

  instantiation, not runtime

. Double-quotes outside of attribute values are now unescaped

3.1.0rc1, released 2008-04-22

# Autoload support added. Internal require_once's removed in favor of an

  explicit require list or autoloading. To use HTML Purifier,

  you must now either use HTMLPurifier.auto.php

  or HTMLPurifier.includes.php; setting the include path and including

  HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php

  as well to register our autoload handler (or modify your autoload function

  to check HTMLPurifier_Bootstrap::getPath($class)). You can also use

  HTMLPurifier.safe-includes.php for a less performance friendly but more

  user-friendly library load.

# HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema

  information is stored in the ConfigSchema directory, and the

  maintenance/generate-schema-cache.php generates the schema.ser file, which

  is now instantiated. Support for userland schema changes coming soon!

# HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive

  alias; to get rid of these errors just modify your configuration to use

  the new directive name.

# HTMLPurifier->addFilter is deprecated; built-in filters can now be

  enabled using %Filter.$filter_name or by setting your own filters using

  %Filter.Custom

# Directive-level safety properties superceded in favor of module-level

  safety. Internal method HTMLModule->addElement() has changed, although

  the externally visible HTMLDefinition->addElement has *not* changed.

! Extra utility classes for testing and non-library operations can

  be found in extras/. Specifically, these are FSTools and ConfigDoc.

  You may find a use for these in your own project, but right now they

  are highly experimental and volatile.

! Integration with PHPT allows for automated smoketests

! Limited support for proprietary HTML elements, namely <marquee>, sponsored

  by Chris. You can enable them with %HTML.Proprietary if your client

  demands them.

! Support for !important CSS cascade modifier. By default, this will be stripped

  from CSS, but you can enable it using %CSS.AllowImportant

! Support for display and visibility CSS properties added, set %CSS.AllowTricky

  to true to use them.

! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.

  Developer error (not enduser error) can cause these to be triggered.

! Experimental kses() wrapper introduced with HTMLPurifier.kses.php

! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without

  mucking around with HTMLPurifier_CSSDefinition

! ConfigDoc output has been enhanced with version and deprecation info.

! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.

- Autoclose now operates iteratively, i.e. <span><span><div> now has