RELEASE-NOTES-1.25

   1 Security reminder: If you have PHP's register_globals option set, you must
   2 turn it off. MediaWiki will not work with it enabled.
   3
   4 == MediaWiki 1.25 ==
   5
   6 THIS IS NOT A RELEASE YET
   7
   8 MediaWiki 1.25 is an alpha-quality branch and is not recommended for use in
   9 production.
  10
  11 === Configuration changes in 1.25 ===
  12 * $wgPageShowWatchingUsers was removed.
  13 * $wgLocalVirtualHosts has been added to replace $wgConf->localVHosts.
  14 * $wgAntiLockFlags was removed.
  15 * Edit tokens returned from User::getEditToken may change on every call. Token
  16   validity must be checked by passing the user-supplied token to
  17   User::matchEditToken rather than by testing for equality with a
  18   newly-generated token.
  19 * (bug 72951) The UserGetLanguageObject hook may be passed any IContextSource
  20   for its $context parameter. Formerly it was documented as receiving a
  21   RequestContext specifically.
  22
  23 === New features in 1.25 ===
  24 * (bug 62861) Updated plural rules to CLDR 26. Includes incompatible changes
  25   for plural forms in Russian, Prussian, Tagalog, Manx and several languages
  26   that fall back to Russian.
  27 * (bug 58139) ResourceLoaderFileModule now supports language fallback
  28   for 'languageScripts'.
  29 * Added a new hook, "ContentAlterParserOutput", to allow extensions to modify the
  30   parser output for a content object before links update.
  31 * (bug 35785) Enhanced recent changes and extended watchlist are now default.
  32   Documentation: https://meta.wikimedia.org/wiki/Help:Enhanced_recent_changes
  33   and https://www.mediawiki.org/wiki/Manual:$wgDefaultUserOptions.
  34 * (bug 67341) SVG images will no longer be base64-encoded when being embedded
  35   in CSS. This results in slight size increase before gzip compression (due to
  36   percent-encoding), but up to 20% decrease after it.
  37 * Upgrade jStorage to v0.4.12.
  38 * MediaWiki now natively supports page status indicators: icons (or short text
  39   snippets) usually displayed in the top-right corner of the page. They have
  40   been in use on Wikipedia for a long time, implemented using templates and CSS
  41   absolute positioning.
  42   - Basic wikitext syntax: <indicator name="foo">[[File:Foo.svg|20px]]</indicator>
  43   - Usage instructions: https://www.mediawiki.org/wiki/Help:Page_status_indicators
  44   - Adjusting custom skins to support indicators:
  45     https://www.mediawiki.org/wiki/Manual:Skinning#Page_status_indicators
  46 * Edit tokens may now be time-limited: passing a maximum age to
  47   User::matchEditToken will reject any older tokens.
  48 * The debug logging internals have been overhauled, and are now using the
  49   PSR-3 interfaces.
  50
  51 === Bug fixes in 1.25 ===
  52 * (bug 71003) No additional code will be generated to try to load CSS-embedded
  53   SVG images in Internet Explorer 6 and 7, as they don't support them anyway.
  54 * (bug 67021) On Special:BookSources, corrected validation of ISBNs (both
  55   10- and 13-digit forms) containing "X".
  56 * Page moving was refactored into a MovePage class. As part of that:
  57 ** The AbortMove hook was removed.
  58 ** MovePageIsValidMove is for extensions to specify whether a page
  59    cannot be moved for technical reasons, and should not be overriden.
  60 ** MovePageCheckPermissions is for checking whether the given user is
  61    allowed to make the move.
  62 ** Title::moveNoAuth() was deprecated. Use the MovePage class instead.
  63 ** Title::moveTo() was deprecated. Use the MovePage class instead.
  64 ** Title::isValidMoveOperation() broken down into MovePage::isValidMove()
  65    and MovePage::checkPermissions().
  66
  67 === Action API changes in 1.25 ===
  68 * (bug 65403) XML tag highlighting is now only performed for formats
  69   "xmlfm" and "wddxfm".
  70 * action=paraminfo supports generalized submodules (modules=query+value),
  71   querymodules and formatmodules are deprecated
  72 * action=paraminfo no longer outputs descriptions and other help text by
  73   default. If needed, it may be requested using the new 'helpformat' parameter.
  74 * action=help has been completely rewritten, and outputs help in HTML
  75   rather than plain text.
  76 * Hitting api.php without specifying an action now displays only the help for
  77   the main module, with links to submodule help.
  78 * API help is no longer displayed on errors.
  79 * Internationalized messages returned by the API will be in the wiki's content
  80   language by default. 'uselang' is now a recognized API parameter;
  81   "uselang=user" may be used to select the language from the current user's
  82   preferences.
  83 * Default output format for the API is now jsonfm.
  84 * Simplified continuation will return a "batchcomplete" property in the result
  85   when a batch of pages is complete.
  86 * Pretty-printed HTML output now has nicer formatting and (if available)
  87   better syntax highlighting.
  88
  89 === Action API internal changes in 1.25 ===
  90 * ApiHelp has been rewritten to support i18n and paginated HTML output.
  91   Most existing modules should continue working without changes, but should do
  92   the following:
  93   * Add an i18n message "apihelp-{$moduleName}-description" to replace getDescription().
  94   * Add i18n messages "apihelp-{$moduleName}-param-{$param}" for each parameter
  95     to replace getParamDescription(). If necessary, the settings array returned
  96     by getParams() can use the new ApiBase::PARAM_HELP_MSG key to override the
  97     message.
  98   * Implement getExamplesMessages() to replace getExamples().
  99 * Modules with submodules (like action=query) must have their submodules
 100   override ApiBase::getParent() to return the correct parent object.
 101 * The 'APIGetDescription' and 'APIGetParamDescription' hooks are deprecated,
 102   and will have no effect for modules using i18n messages. Use
 103   'APIGetDescriptionMessages' and 'APIGetParamDescriptionMessages' instead.
 104 * Api formatters will no longer be asked to display the help screen on errors.
 105 * ApiMain::getCredits() was removed. The credits are available in the
 106   'api-credits' i18n message.
 107 * ApiFormatBase has been changed to support i18n and syntax highlighting via
 108   extensions with the new 'ApiFormatHighlight' hook. Core syntax highlighting
 109   has been removed.
 110 * ApiFormatBase now always buffers. Output is done when
 111   ApiFormatBase::closePrinter is called.
 112 * The following methods have been deprecated and may be removed in a future
 113   release:
 114   * ApiBase::getDescription
 115   * ApiBase::getParamDescription
 116   * ApiBase::getExamples
 117   * ApiBase::makeHelpMsg
 118   * ApiBase::makeHelpArrayToString
 119   * ApiBase::makeHelpMsgParameters
 120   * ApiFormatBase::setUnescapeAmps
 121   * ApiFormatBase::getWantsHelp
 122   * ApiFormatBase::setHelp
 123   * ApiFormatBase::formatHTML
 124   * ApiFormatBase::setBufferResult
 125   * ApiFormatBase::getDescription
 126   * ApiMain::setHelp
 127   * ApiMain::reallyMakeHelpMsg
 128   * ApiMain::makeHelpMsgHeader
 129   * ApiQueryImageInfo::getPropertyDescriptions
 130
 131 === Languages updated in 1.25 ===
 132
 133 MediaWiki supports over 350 languages. Many localisations are updated
 134 regularly. Below only new and removed languages are listed, as well as
 135 changes to languages because of Bugzilla reports.
 136
 137 === Other changes in 1.25 ===
 138 * The skin autodiscovery mechanism, deprecated in MediaWiki 1.23, has been
 139   removed. See https://www.mediawiki.org/wiki/Manual:Skin_autodiscovery for
 140   migration guide for creators and users of custom skins that relied on it.
 141 * Javascript variable 'wgFileCanRotate' now only available on Special:Upload.
 142 * (bug 56257) Set site logo from mediawiki.skinning.interface module instead of
 143   inline styles in the HTML.
 144 * Removed ApiQueryUsers::getAutoGroups(). (deprecated since 1.20)
 145 * Removed XmlDumpWriter::schemaVersion(). (deprecated since 1.20)
 146 * Removed LogEventsList::getDisplayTitle(). (deprecated since 1.20)
 147 * Removed Preferences::trySetUserEmail(). (deprecated since 1.20)
 148 * Removed mw.user.name() and mw.user.anonymous() methods. (deprecated since 1.20)
 149 * Removed 'ok' and 'err' parameters in the mediawiki.api modules. (deprecated
 150   since 1.20)
 151 * Removed 'async' parameter from the  mw.Api#getCategories() method. (deprecated
 152   since 1.20)
 153 * Removed 'jquery.json' module. (deprecated since 1.24)
 154   Use the 'json' module and global JSON object instead.
 155 * Deprecated OutputPage::readOnlyPage() and OutputPage::rateLimited().
 156   Also, the former will now throw an MWException if called with one or more
 157   arguments.
 158 * Removed hitcounters and associated code.
 159 * The "temp" zone of the upload respository is now considered private. If it
 160   already exists (such as under the images/ directory), please make sure that
 161   the directory is not web readable (e.g. via a .htaccess file).
 162 * BREAKING CHANGE: In the XML dump format used by Special:Export and
 163   dumpBackup.php, the <model> and <format> tags now apprear before the <text>
 164   tag, instead of after the <text> and <sha1> tags.
 165   The new schema version is 0.10, the new schema URI is
 166   <https://www.mediawiki.org/xml/export-0.10.xsd>.
 167
 168 == Compatibility ==
 169
 170 MediaWiki 1.25 requires PHP 5.3.3 or later. There is experimental support for
 171 HHVM 3.3.0.
 172
 173 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 174 support for them is somewhat less mature. There is experimental support for
 175 Oracle and Microsoft SQL Server.
 176
 177 The supported versions are:
 178
 179 * MySQL 5.0.2 or later
 180 * PostgreSQL 8.3 or later
 181 * SQLite 3.3.7 or later
 182 * Oracle 9.0.1 or later
 183 * Microsoft SQL Server 2005 (9.00.1399)
 184
 185 == Upgrading ==
 186
 187 1.25 has several database changes since 1.24, and will not work without schema
 188 updates. Note that due to changes to some very large tables like the revision
 189 table, the schema update may take quite long (minutes on a medium sized site,
 190 many hours on a large site).
 191
 192 If upgrading from before 1.11, and you are using a wiki as a commons
 193 repository, make sure that it is updated as well. Otherwise, errors may arise
 194 due to database schema changes.
 195
 196 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 197 new database fields are filled with data.
 198
 199 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 200 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 201 with MediaWiki 1.21.
 202
 203 Don't forget to always back up your database before upgrading!
 204
 205 See the file UPGRADE for more detailed upgrade instructions.
 206
 207 For notes on 1.23.x and older releases, see HISTORY.
 208
 209 == Online documentation ==
 210
 211 Documentation for both end-users and site administrators is available on
 212 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 213 for pages that explicitly state that their contents are in the public domain):
 214
 215         https://www.mediawiki.org/wiki/Documentation
 216
 217 == Mailing list ==
 218
 219 A mailing list is available for MediaWiki user support and discussion:
 220
 221         https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 222
 223 A low-traffic announcements-only list is also available:
 224
 225         https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 226
 227 It's highly recommended that you sign up for one of these lists if you're
 228 going to run a public MediaWiki, so you can be notified of security fixes.
 229
 230 == IRC help ==
 231
 232 There's usually someone online in #mediawiki on irc.freenode.net.