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=revisiondelete no longer includes a "rendered" property on warnings
  59   and errors for each item. Use errorformat=wikitext if you're wanting parsed
  60   output.
  61 * action=rollback no longer returns a "messageHtml" property. Use
  62   errorformat=html if you're wanting HTML formatting of error messages.
  63 * action=upload now reports optional stash failures as an array under key
  64   'stasherrors' rather than a 'stashfailed' text string.
  65 * action=watch reports 'errors' and 'warnings' instead of a single 'error', and
  66   no longer returns a 'message' on success.
  67
  68 === Action API internal changes in 1.29 ===
  69 * New methods were added to ApiBase to handle errors and warnings using i18n
  70   keys. Methods for using hard-coded English messages were deprecated:
  71   * ApiBase::dieUsage() was deprecated
  72   * ApiBase::dieUsageMsg() was deprecated
  73   * ApiBase::dieUsageMsgOrDebug() was deprecated
  74   * ApiBase::getErrorFromStatus() was deprecated
  75   * ApiBase::parseMsg() was deprecated
  76   * ApiBase::setWarning() was deprecated
  77 * ApiBase::$messageMap is no longer public. Code attempting to access it will
  78   result in a PHP fatal error.
  79 * The $message parameter to the ApiCheckCanExecute hook should be set to an
  80   ApiMessage. This is compatible with MediaWiki 1.27 and later. Returning a
  81   code for ApiBase::parseMsg() will no longer work.
  82 * UsageException is deprecated in favor of ApiUsageException. For the time
  83   being ApiUsageException is a subclass of UsageException to allow things that
  84   catch only UsageException to still function properly.
  85 * If, for some strange reason, code was using an ApiErrorFormatter instead of
  86   ApiErrorFormatter_BackCompat, note that the result format has changed and
  87   various methods now take a module path rather than a module name.
  88 * ApiMessageTrait::getApiCode() now strips 'apierror-' and 'apiwarn-' prefixes
  89   from the message key, and maps some message keys for backwards compatibility.
  90
  91 === Languages updated in 1.29 ===
  92
  93 MediaWiki supports over 350 languages. Many localisations are updated
  94 regularly. Below only new and removed languages are listed, as well as
  95 changes to languages because of Phabricator reports.
  96
  97 ==== No fallback for Ukrainian ====
  98 * (T39314) The fallback from Ukrainian to Russian was removed. The Ukrainian
  99   language will now use the default fallback language: English. When a translation
 100   to Ukrainian is not available, an English string will be shown.
 101
 102 === Other changes in 1.29 ===
 103 * Database::getSearchEngine() (deprecated in 1.28) was removed. Use
 104   SearchEngineFactory::getSearchEngineClass() instead.
 105 * $wgSessionsInMemcached (deprecated in 1.20) was removed. No replacement is
 106   required as all sessions are stored in Object Cache now.
 107 * MWHttpRequest::execute() should be considered to return a StatusValue; the
 108   Status return type is deprecated.
 109 * User::edits() (deprecated in 1.21) was removed.
 110 * Xml::escapeJsString() (deprecated in 1.21) was removed.
 111 * Article::getText() and Article::prepareTextForEdit() (deprecated in 1.21)
 112   were removed.
 113 * Article::getAutosummary() and WikiPage::getAutosummary (deprecated in 1.21)
 114   were removed.
 115 * Hooks ArticleViewCustom, EditPageGetDiffText and ShowRawCssJs (deprecated in 1.21)
 116   were removed.
 117 * Class RevisiondeleteAction (deprecated in 1.25) was removed.
 118
 119 == Compatibility ==
 120
 121 MediaWiki 1.29 requires PHP 5.5.9 or later. There is experimental support for
 122 HHVM 3.6.5 or later.
 123
 124 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 125 support for them is somewhat less mature. There is experimental support for
 126 Oracle and Microsoft SQL Server.
 127
 128 The supported versions are:
 129
 130 * MySQL 5.0.3 or later
 131 * PostgreSQL 8.3 or later
 132 * SQLite 3.3.7 or later
 133 * Oracle 9.0.1 or later
 134 * Microsoft SQL Server 2005 (9.00.1399)
 135
 136 == Upgrading ==
 137
 138 1.29 has several database changes since 1.28, and will not work without schema
 139 updates. Note that due to changes to some very large tables like the revision
 140 table, the schema update may take quite long (minutes on a medium sized site,
 141 many hours on a large site).
 142
 143 If upgrading from before 1.11, and you are using a wiki as a commons
 144 repository, make sure that it is updated as well. Otherwise, errors may arise
 145 due to database schema changes.
 146
 147 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 148 new database fields are filled with data.
 149
 150 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 151 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 152 with MediaWiki 1.21.
 153
 154 Don't forget to always back up your database before upgrading!
 155
 156 See the file UPGRADE for more detailed upgrade instructions.
 157
 158 For notes on 1.28.x and older releases, see HISTORY.
 159
 160 == Online documentation ==
 161
 162 Documentation for both end-users and site administrators is available on
 163 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 164 for pages that explicitly state that their contents are in the public domain):
 165
 166        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 167
 168 == Mailing list ==
 169
 170 A mailing list is available for MediaWiki user support and discussion:
 171
 172        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 173
 174 A low-traffic announcements-only list is also available:
 175
 176        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 177
 178 It's highly recommended that you sign up for one of these lists if you're
 179 going to run a public MediaWiki, so you can be notified of security fixes.
 180
 181 == IRC help ==
 182
 183 There's usually someone online in #mediawiki on irc.freenode.net.