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