RELEASE-NOTES-1.28

   1 == MediaWiki 1.28 ==
   2
   3 THIS IS NOT A RELEASE YET
   4
   5 MediaWiki 1.28 is an alpha-quality branch and is not recommended for use in
   6 production.
   7
   8 === Configuration changes in 1.28 ===
   9 * $wgSend404Code now affects status code of action=history if the page is not there.
  10 * BREAKING CHANGE: $wgHTTPProxy is now *required* for all external requests
  11   made by MediaWiki via a proxy. Relying on the http_proxy environment
  12   variable is no longer supported.
  13 * The load.php entry point now enforces the existing policy of not allowing
  14   access to session data, which includes the session user and the session
  15   user's language. If such access is attempted, an exception will be thrown.
  16 * The number of internal PBKDF2 iterations used to derive the session secret
  17   is configurable via $wgSessionPbkdf2Iterations.
  18 * Upload dialog's file upload log comment can now be configured separately for
  19   local and foreign uploads.
  20 * $wgForeignUploadTargets now defaults to `[ 'local' ]`, where `'local'`
  21   signifies local uploads. A value of `[]` (empty array) now means that
  22   no upload targets are allowed, effectively disabling the upload dialog.
  23 * The deprecated $wgEditEncoding variable has been removed; it was only used
  24   for Esperanto language character conversion. You are now recommended to use
  25   input methods provided by the UniversalLanguageSelector extension.
  26 * When $wgPingback is true, MediaWiki will periodically ping
  27   https://www.mediawiki.org/beacon with basic information about the local
  28   MediaWiki installation. This data includes, for example, the type of system,
  29   PHP version, and chosen database backend. This behavior is off by default.
  30 * When $wgEditSubmitButtonLabelPublish is true, MediaWiki will label the button
  31   to store-to-database-and-show-to-others as "Publish page"/"Publish changes";
  32   if false, the default, they will be "Save page"/"Save changes".
  33 * The 'editcontentmodel' permission is now granted to all logged-in users ('user').
  34   instead of just administrators ('sysop'). Documentation for this feature is
  35   available at <https://www.mediawiki.org/wiki/Help:ChangeContentModel>.
  36 * $wgRevisionCacheExpiry is now set to one week by default instead of being disabled.
  37
  38 === New features in 1.28 ===
  39 * User::isBot() method for checking if an account is a bot role account.
  40 * Added a new 'slideshow' mode for galleries.
  41 * Added a new hook, 'UserIsBot', to aid in determining if a user is a bot.
  42 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
  43   interact with API parsing.
  44 * Added a new hook, 'UploadVerifyUpload', which can be used to reject a file
  45   upload. Unlike 'UploadVerifyFile' it provides information about upload comment
  46   and the file description page, but does not run for uploads to stash.
  47 * (T141604) Extensions can now provide a better error message when their
  48   maintenance scripts are run without the extension being installed.
  49 * (T8948) Numeric sorting in categories is now supported by setting $wgCategoryCollation
  50   to 'uca-default-u-kn' or 'uca-<langcode>-u-kn'. If you can't use UCA collations,
  51   a 'numeric' collation is also available. If migrating from another
  52   collation, you will need to run the updateCollation.php maintenance script.
  53 * Two new codes have been added to #time parser function: "xit" for days in current
  54   month, and "xiz" for days passed in the year, both in Iranian calendar.
  55 * mw.Api has a new option, useUS, to use U+001F (Unit Separator) when
  56   appropriate for sending multi-valued parameters. This defaults to true when
  57   the mw.Api instance seems to be for the local wiki.
  58 * After a client performs an action which alters a database that has replica databases,
  59   MediaWiki will wait for the replica databases to synchronize with the master database
  60   while it renders the HTML output. However, if the output is a redirect to another wiki
  61   on the wiki farm with a different domain, MediaWiki will instead alter the redirect
  62   URL to include a ?cpPosTime parameter that triggers the database synchronization when
  63   the URL is followed by the client. The same-domain case uses a new cpPosTime cookie.
  64
  65 === External library changes in 1.28 ===
  66
  67 ==== Upgraded external libraries ====
  68 * Updated es5-shim from v4.1.5 to v4.5.8
  69 * Updated composer/semver from v1.4.1 to v1.4.2
  70 * Updated wikimedia/php-session-serializer from v1.0.3 to v1.0.4
  71
  72 ==== New external libraries ====
  73 * Added wikimedia/scoped-callback v1.0.0
  74 * Added wikimedia/wait-condition-loop v1.0.1
  75
  76 ==== Removed and replaced external libraries ====
  77
  78 === Bug fixes in 1.28 ===
  79 * (T146496) action=history pages should return 404 HTTP error code if the page does not exist
  80 * (T137264) SECURITY: XSS in unclosed internal links
  81 * (T133147) SECURITY: Escape '<' and ']]>' in inline <style> blocks
  82 * (T133147) SECURITY: Require login to preview user CSS pages
  83 * (T132926) SECURITY: Do not allow undeleting a revision deleted file if it is
  84   the top file
  85 * (T129738) SECURITY: Make $wgBlockDisablesLogin also restrict logged in
  86   permissions
  87 * (T129738) SECURITY: Make blocks log users out if $wgBlockDisablesLogin is true
  88 * (T139670) Move 'UserGetRights' call before application of
  89   Session::getAllowedUserRights()
  90
  91 === Action API changes in 1.28 ===
  92 * Added 'maxarticlesize' property to action=query&meta=siteinfo which contains
  93   the value of $wgMaxArticleSize.
  94 * Property 'modulemessages' from action=parse&prop=modules was removed
  95   (deprecated since 1.26).
  96 * The following response properties from action=login, deprecated in 1.27, are
  97   now removed: lgtoken, cookieprefix, sessionid. Clients should handle cookies
  98   to properly manage session state.
  99 * Submitting the lgtoken and lgpassword parameters in the query string to
 100   action=login is now deprecated and outputs a warning. They should be submitted
 101   in the POST body instead.
 102 * Submitting sensitive authentication request parameters to action=clientlogin,
 103   action=createaccount, action=linkaccount, and action=changeauthenticationdata
 104   in the query string is now deprecated and outputs a warning. They should be
 105   submitted in the POST body instead.
 106 * (T141960) Multi-valued parameters may now be separated using U+001F (Unit Separator)
 107   instead of the pipe character. This will be useful if some of the multiple
 108   values need to contain pipes, e.g. for action=options.
 109 * The API will now warn if input is not NFC-normalized Unicode or if it
 110   contains invalid characters.
 111 * The 'normalized' list output by action=query and other modules that use
 112   ApiPageSet may contain entries where the 'from' value is percent-encoded as
 113   the raw value cannot be represented in a valid API response. These are
 114   indicated by a 'fromencoded' boolean alongside the existing 'from' parameter.
 115 * (T28680) action=paraminfo can now return info about all submodules of a
 116   module without listing them all explicitly.
 117 * (T146770) It is now possible to assert that the current user is a specific
 118   named user, using the 'assertuser' parameter.
 119
 120 === Action API internal changes in 1.28 ===
 121 * Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
 122   interact with ApiParse and ApiExpandTemplates.
 123 * (T139565) SECURITY: API: Generate head items in the context of the given title
 124 * (T115333) SECURITY: Check read permission when loading page content in ApiParse
 125 * ApiBase::getResultData() was removed (deprecated since 1.25)
 126 * ApiBase::makeHelpArrayToString() was removed (deprecated since 1.25)
 127 * ApiBase::makeHelpMsgParameters() was removed (deprecated since 1.25)
 128 * ApiBase::makeHelpMsg() was removed (deprecated since 1.25)
 129 * ApiFormatBase::formatHTML() was removed (deprecated since 1.25)
 130 * ApiFormatBase::getNeedsRawData() was removed (deprecated since 1.25)
 131 * ApiFormatBase::getWantsHelp() was removed (deprecated since 1.25)
 132 * ApiFormatBase::setBufferResult() was removed (deprecated since 1.25)
 133 * ApiFormatBase::setHelp() was removed (deprecated since 1.25)
 134 * ApiFormatBase::setUnescapeAmps() was removed (deprecated since 1.25)
 135 * ApiMain::makeHelpMsgHeader() was removed (deprecated since 1.25)
 136 * ApiMain::reallyMakeHelpMsg() was removed (deprecated since 1.25)
 137 * ApiMain::setHelp() was removed (deprecated since 1.25)
 138 * ApiResult::beginContinuation() was removed (deprecated since 1.25)
 139 * ApiResult::cleanUpUTF8() was removed (deprecated since 1.25)
 140 * ApiResult::convertStatusToArray() was removed (deprecated since 1.25)
 141 * ApiResult::disableSizeCheck() was removed (deprecated since 1.24)
 142 * ApiResult::enableSizeCheck() was removed (deprecated since 1.24)
 143 * ApiResult::endContinuation() was removed (deprecated since 1.25)
 144 * ApiResult::getData() was removed (deprecated since 1.25)
 145 * ApiResult::getIsRawMode() was removed (deprecated since 1.25)
 146 * ApiResult::setContent() was removed (deprecated since 1.25)
 147 * ApiResult::setContinueParam() was removed (deprecated since 1.25)
 148 * ApiResult::setElement() was removed (deprecated since 1.25)
 149 * ApiResult::setGeneratorContinueParam() was removed (deprecated since 1.25)
 150 * ApiResult::setIndexedTagName_internal() was removed (deprecated since 1.25)
 151 * ApiResult::setIndexedTagName_recursive() was removed (deprecated since 1.25)
 152 * ApiResult::setMainForContinuation() was removed (deprecated since 1.25)
 153 * ApiResult::setParsedLimit() was removed (deprecated since 1.25)
 154 * ApiResult::setRawMode() was removed (deprecated since 1.25)
 155 * ApiResult::size() was removed (deprecated since 1.25)
 156
 157 === Languages updated in 1.28 ===
 158
 159 MediaWiki supports over 350 languages. Many localisations are updated
 160 regularly. Below only new and removed languages are listed, as well as
 161 changes to languages because of Phabricator reports.
 162
 163 * (T137411) ban (Balinese), thanks to translators Adi Mayndra, Andru,
 164   BASAbali, M. Adiputra, Naval Scene, Nemo bis, NoiX180, and 아라.
 165 * (T135867) shn (Shan), thanks to translators Khun Sar, Piangpha,
 166   Saiddzone Saimawnkham, Saosukham, and Sengwan.
 167 * Czech (cs) and Slovak (sk) set as reciprocal fallbacks
 168
 169 === Other changes in 1.28 ===
 170 * (T128697) Improved handling of large diffs.
 171 * [BREAKING CHANGE] $wgExtendedLoginCookies has been removed. You can
 172   use or update a custom session provider if needed.
 173 * Deprecated APIEditBeforeSave hook in favor of EditFilterMergedContent.
 174 * The 'UploadVerification' hook is deprecated. Use 'UploadVerifyFile' instead.
 175 * SiteConfiguration::isLocalVHost() was removed (deprecated since 1.25).
 176 * The 'UserLoginComplete' hook has a new parameter to differentiate between actual
 177   login and visiting the login page while already logged in.
 178 * ResourceLoader::makeLoaderURL() was removed (deprecated since 1.24).
 179 * $.fn.liveAndTestAtStart was removed (deprecated since 1.24).
 180 * mw.util.tooltipAccessKeyPrefix was removed (deprecated since 1.24).
 181 * mw.util.tooltipAccessKeyRegexp was removed (deprecated since 1.24).
 182 * Linker::link() and Linker::linkKnown() were deprecated; please instead use
 183   MediaWiki\Linker\LinkRenderer. In addition, the LinkBegin and LinkEnd hooks
 184   were replaced by HtmlPageLinkRendererBegin and HtmlPageLinkRendererEnd
 185   respectively. See docs/hooks.txt for the specific changes needed for those hooks.
 186 * Linker::formatSize() was deprecated. Use Language::formatSize() directly.
 187 * Aliases for Linker methods, deprecated since 1.21, were removed from Skin:
 188   * Skin::commentBlock() (use Linker::commentBlock() instead)
 189   * Skin::generateRollback() (use Linker::generateRollback() instead)
 190   * Skin::link() (use MediaWiki\Linker\LinkRenderer instead)
 191   * Skin::linkKnown() (use MediaWiki\Linker\LinkRenderer instead)
 192   * Skin::userLink() (use Linker::userLink() instead)
 193   * Skin::userToolLinks() (use Linker::userToolLinks() instead)
 194 * The 'ParserLimitReportFormat' hook was removed.
 195 * Disabled "bug 2702" HTML tidying of parsed UI messages on wikis where Tidy is
 196   disabled.
 197 * DifferenceEngine::generateDiffBody() was removed (deprecated since 1.21).
 198 * UploadBase::stashFileGetKey() and UploadBase::stashSession() were deprecated.
 199   Use ...->stashFile()->getFileKey() instead.
 200 * "Public domain" was removed as a wiki license option from the installer, in
 201   favour of CC-0.
 202 * AuthenticationRequest::$required is now changed from REQUIRED to PRIMARY_REQUIRED
 203   on requests needed by primary providers even if all primaries need them.
 204   Primary providers are discouraged from returning multiple REQUIRED requests.
 205 * OOjs UI PHP widgets constructed with the `'infusable' => true` config option
 206   will no longer be automatically infused. You should call `OO.ui.infuse()`
 207   on them yourself from your JavaScript code.
 208 * parserTests.php has moved to tests/parser/parserTests.php
 209 * The command line options specific to parser tests have been removed from
 210   phpunit.php: --regex and --keep-uploads. Instead of --regex, use --filter.
 211   Instead of --keep-uploads, use the same option to parserTests.php, but you
 212   must specify a directory with --upload-dir.
 213 * The 'jquery.arrowSteps' ResourceLoader module is now deprecated.
 214 * IP::isConfiguredProxy() and IP::isTrustedProxy() were removed. Callers should
 215   migrate to using the same functions on a ProxyLookup instance, obtainable from
 216   MediaWikiServices.
 217 * The ArticleAfterFetchContent, ArticleSave, ArticleViewCustom, EditPageGetDiffText,
 218   EditPageGetPreviewText and ShowRawCssJs hooks will now emit deprecation warnings if
 219   used.
 220
 221 == Compatibility ==
 222
 223 MediaWiki 1.28 requires PHP 5.5.9 or later. There is experimental support for
 224 HHVM 3.6.5 or later.
 225
 226 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 227 support for them is somewhat less mature. There is experimental support for
 228 Oracle and Microsoft SQL Server.
 229
 230 The supported versions are:
 231
 232 * MySQL 5.0.3 or later
 233 * PostgreSQL 8.3 or later
 234 * SQLite 3.3.7 or later
 235 * Oracle 9.0.1 or later
 236 * Microsoft SQL Server 2005 (9.00.1399)
 237
 238 == Upgrading ==
 239
 240 1.28 has several database changes since 1.27, and will not work without schema
 241 updates. Note that due to changes to some very large tables like the revision
 242 table, the schema update may take quite long (minutes on a medium sized site,
 243 many hours on a large site).
 244
 245 If upgrading from before 1.11, and you are using a wiki as a commons
 246 repository, make sure that it is updated as well. Otherwise, errors may arise
 247 due to database schema changes.
 248
 249 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 250 new database fields are filled with data.
 251
 252 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 253 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 254 with MediaWiki 1.21.
 255
 256 Don't forget to always back up your database before upgrading!
 257
 258 See the file UPGRADE for more detailed upgrade instructions.
 259
 260 For notes on 1.27.x and older releases, see HISTORY.
 261
 262 == Online documentation ==
 263
 264 Documentation for both end-users and site administrators is available on
 265 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 266 for pages that explicitly state that their contents are in the public domain):
 267
 268        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 269
 270 == Mailing list ==
 271
 272 A mailing list is available for MediaWiki user support and discussion:
 273
 274        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 275
 276 A low-traffic announcements-only list is also available:
 277
 278        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 279
 280 It's highly recommended that you sign up for one of these lists if you're
 281 going to run a public MediaWiki, so you can be notified of security fixes.
 282
 283 == IRC help ==
 284
 285 There's usually someone online in #mediawiki on irc.freenode.net.