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