RELEASE-NOTES-1.29

   1 == MediaWiki 1.29 ==
   2
   3 THIS IS NOT A RELEASE YET
   4
   5 MediaWiki 1.29 is an alpha-quality branch and is not recommended for use in
   6 production.
   7
   8 === Configuration changes in 1.29 ===
   9 * Default cookie expiration time has been reduced to 30 days. Login cookie expiration time is
  10   kept at 180 days.
  11 * A new configuration variable has been added: $wgCookieSetOnAutoblock. This
  12   determines whether to set a cookie when a user is autoblocked. Doing so means
  13   that a blocked user, even after logging out and moving to a new IP address,
  14   will still be blocked.
  15 * The resetpassword right and associated password reset capture feature has
  16   been removed.
  17 * The $error parameter to the EmailUser hook should be set to a Status object
  18   or boolean false. This should be compatible with at least MediaWiki 1.23 if
  19   not earlier. Returning a raw HTML string is now deprecated.
  20 * The $message parameter to the ApiCheckCanExecute hook should be set to an
  21   ApiMessage. This is compatible with MediaWiki 1.27 and later. Returning a
  22   code for ApiBase::parseMsg() will no longer work.
  23 * ApiBase::$messageMap is no longer public. Code attempting to access it will
  24   result in a PHP fatal error.
  25
  26 === New features in 1.29 ===
  27 * (T5233) A cookie can now be set when a user is autoblocked, to track that user if
  28   they move to a new IP address. This is disabled by default.
  29
  30 === External library changes in 1.29 ===
  31
  32 ==== Upgraded external libraries ====
  33 * Updated QUnit from v1.22.0 to v1.23.1.
  34
  35 ==== New external libraries ====
  36
  37 ==== Removed and replaced external libraries ====
  38
  39 === Bug fixes in 1.29 ===
  40
  41 === Action API changes in 1.29 ===
  42 * Submitting sensitive authentication request parameters to action=clientlogin,
  43   action=createaccount, action=linkaccount, and action=changeauthenticationdata
  44   in the query string is now an error. They should be submitted in the POST
  45   body instead.
  46 * The capture option for action=resetpassword has been removed
  47 * action=clearhasmsg now requires a POST.
  48 * (T47843) API errors and warnings may be requested in non-English languages
  49   using the new 'errorformat', 'errorlang', and 'errorsuselocal' parameters.
  50 * API error codes may have changed. Most notably, errors from modules using
  51   parameter prefixes (e.g. all query submodules) will no longer be prefixed.
  52 * action=emailuser may return a "Warnings" status, and now returns 'warnings' and
  53   'errors' subelements (as applicable) instead of 'message'.
  54 * action=imagerotate returns an 'errors' subelement rather than 'errormessage'.
  55 * action=move now reports errors when moving the talk page as an array under
  56   key 'talkmove-errors', rather than using 'talkmove-error-code' and
  57   'talkmove-error-info'. The format for subpage move errors has also changed.
  58 * action=rollback no longer returns a "messageHtml" property on errors. Use
  59   errorformat=html if you're wanting HTML formatting of messages.
  60 * action=upload now reports optional stash failures as an array under key
  61   'stasherrors' rather than a 'stashfailed' text string.
  62 * action=watch reports 'errors' and 'warnings' instead of a single 'error'.
  63
  64 === Action API internal changes in 1.29 ===
  65 * New methods were added to ApiBase to handle errors and warnings using i18n
  66   keys. Methods for using hard-coded English messages were deprecated:
  67   * ApiBase::dieUsage() was deprecated
  68   * ApiBase::dieUsageMsg() was deprecated
  69   * ApiBase::dieUsageMsgOrDebug() was deprecated
  70   * ApiBase::getErrorFromStatus() was deprecated
  71   * ApiBase::parseMsg() was deprecated
  72   * ApiBase::setWarning() was deprecated
  73 * ApiBase::$messageMap is no longer public. Code attempting to access it will
  74   result in a PHP fatal error.
  75 * The $message parameter to the ApiCheckCanExecute hook should be set to an
  76   ApiMessage. This is compatible with MediaWiki 1.27 and later. Returning a
  77   code for ApiBase::parseMsg() will no longer work.
  78 * UsageException is deprecated in favor of ApiUsageException. For the time
  79   being ApiUsageException is a subclass of UsageException to allow things that
  80   catch only UsageException to still function properly.
  81 * If, for some strange reason, code was using an ApiErrorFormatter instead of
  82   ApiErrorFormatter_BackCompat, note that the result format has changed and
  83   various methods now take a module path rather than a module name.
  84 * ApiMessageTrait::getApiCode() now strips 'apierror-' and 'apiwarn-' prefixes
  85   from the message key, and maps some message keys for backwards compatibility.
  86
  87 === Languages updated in 1.29 ===
  88
  89 MediaWiki supports over 350 languages. Many localisations are updated
  90 regularly. Below only new and removed languages are listed, as well as
  91 changes to languages because of Phabricator reports.
  92
  93 ==== No fallback for Ukrainian ====
  94 * (T39314) The fallback from Ukrainian to Russian was removed. The Ukrainian
  95   language will now use the default fallback language: English. When a translation
  96   to Ukrainian is not available, an English string will be shown.
  97
  98 === Other changes in 1.29 ===
  99 * Database::getSearchEngine() (deprecated in 1.28) was removed. Use
 100   SearchEngineFactory::getSearchEngineClass() instead.
 101 * $wgSessionsInMemcached (deprecated in 1.20) was removed. No replacement is
 102   required as all sessions are stored in Object Cache now.
 103 * MWHttpRequest::execute() should be considered to return a StatusValue; the
 104   Status return type is deprecated.
 105 * User::edits() (deprecated in 1.21) was removed.
 106 * Xml::escapeJsString() (deprecated in 1.21) was removed.
 107 * Article::getText() and Article::prepareTextForEdit() (deprecated in 1.21)
 108   were removed.
 109 * Article::getAutosummary() and WikiPage::getAutosummary (deprecated in 1.21)
 110   were removed.
 111 * Hooks ArticleViewCustom, EditPageGetDiffText and ShowRawCssJs (deprecated in 1.21)
 112   were removed.
 113 * Class RevisiondeleteAction (deprecated in 1.25) was removed.
 114
 115 == Compatibility ==
 116
 117 MediaWiki 1.29 requires PHP 5.5.9 or later. There is experimental support for
 118 HHVM 3.6.5 or later.
 119
 120 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 121 support for them is somewhat less mature. There is experimental support for
 122 Oracle and Microsoft SQL Server.
 123
 124 The supported versions are:
 125
 126 * MySQL 5.0.3 or later
 127 * PostgreSQL 8.3 or later
 128 * SQLite 3.3.7 or later
 129 * Oracle 9.0.1 or later
 130 * Microsoft SQL Server 2005 (9.00.1399)
 131
 132 == Upgrading ==
 133
 134 1.29 has several database changes since 1.28, and will not work without schema
 135 updates. Note that due to changes to some very large tables like the revision
 136 table, the schema update may take quite long (minutes on a medium sized site,
 137 many hours on a large site).
 138
 139 If upgrading from before 1.11, and you are using a wiki as a commons
 140 repository, make sure that it is updated as well. Otherwise, errors may arise
 141 due to database schema changes.
 142
 143 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 144 new database fields are filled with data.
 145
 146 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 147 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 148 with MediaWiki 1.21.
 149
 150 Don't forget to always back up your database before upgrading!
 151
 152 See the file UPGRADE for more detailed upgrade instructions.
 153
 154 For notes on 1.28.x and older releases, see HISTORY.
 155
 156 == Online documentation ==
 157
 158 Documentation for both end-users and site administrators is available on
 159 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 160 for pages that explicitly state that their contents are in the public domain):
 161
 162        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 163
 164 == Mailing list ==
 165
 166 A mailing list is available for MediaWiki user support and discussion:
 167
 168        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 169
 170 A low-traffic announcements-only list is also available:
 171
 172        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 173
 174 It's highly recommended that you sign up for one of these lists if you're
 175 going to run a public MediaWiki, so you can be notified of security fixes.
 176
 177 == IRC help ==
 178
 179 There's usually someone online in #mediawiki on irc.freenode.net.