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 * $wgUserEmailUseReplyTo is now true by default to work around restrictive DMARC policies.
  26 * Subpages are now enabled by default in the Template namespace. Set
  27   $wgNamespacesWithSubpages[NS_TEMPLATE] to false to keep the old behavior.
  28
  29 === New features in 1.29 ===
  30 * (T5233) A cookie can now be set when a user is autoblocked, to track that user if
  31   they move to a new IP address. This is disabled by default.
  32 * Added ILocalizedException interface to standardize the use of localized
  33   exceptions, largely so the API can handle them more sensibly.
  34 * Blocks created automatically by MediaWiki, such as for configured proxies or
  35   dnsbls, are now indicated as such and use a new i18n message when displayed.
  36
  37 === External library changes in 1.29 ===
  38
  39 ==== Upgraded external libraries ====
  40 * Updated QUnit from v1.22.0 to v1.23.1.
  41
  42 ==== New external libraries ====
  43
  44 ==== Removed and replaced external libraries ====
  45
  46 === Bug fixes in 1.29 ===
  47
  48 === Action API changes in 1.29 ===
  49 * Submitting sensitive authentication request parameters to action=clientlogin,
  50   action=createaccount, action=linkaccount, and action=changeauthenticationdata
  51   in the query string is now an error. They should be submitted in the POST
  52   body instead.
  53 * The capture option for action=resetpassword has been removed
  54 * action=clearhasmsg now requires a POST.
  55 * (T47843) API errors and warnings may be requested in non-English languages
  56   using the new 'errorformat', 'errorlang', and 'errorsuselocal' parameters.
  57 * API error codes may have changed. Most notably, errors from modules using
  58   parameter prefixes (e.g. all query submodules) will no longer be prefixed.
  59 * ApiPageSet-using modules will report the 'invalidreason' using the specified
  60   'errorformat'.
  61 * action=emailuser may return a "Warnings" status, and now returns 'warnings' and
  62   'errors' subelements (as applicable) instead of 'message'.
  63 * action=imagerotate returns an 'errors' subelement rather than 'errormessage'.
  64 * action=move now reports errors when moving the talk page as an array under
  65   key 'talkmove-errors', rather than using 'talkmove-error-code' and
  66   'talkmove-error-info'. The format for subpage move errors has also changed.
  67 * action=revisiondelete no longer includes a "rendered" property on warnings
  68   and errors for each item. Use errorformat=wikitext if you're wanting parsed
  69   output.
  70 * action=rollback no longer returns a "messageHtml" property. Use
  71   errorformat=html if you're wanting HTML formatting of error messages.
  72 * action=upload now reports optional stash failures as an array under key
  73   'stasherrors' rather than a 'stashfailed' text string.
  74 * action=watch reports 'errors' and 'warnings' instead of a single 'error', and
  75   no longer returns a 'message' on success.
  76
  77 === Action API internal changes in 1.29 ===
  78 * New methods were added to ApiBase to handle errors and warnings using i18n
  79   keys. Methods for using hard-coded English messages were deprecated:
  80   * ApiBase::dieUsage() was deprecated
  81   * ApiBase::dieUsageMsg() was deprecated
  82   * ApiBase::dieUsageMsgOrDebug() was deprecated
  83   * ApiBase::getErrorFromStatus() was deprecated
  84   * ApiBase::parseMsg() was deprecated
  85   * ApiBase::setWarning() was deprecated
  86 * ApiBase::$messageMap is no longer public. Code attempting to access it will
  87   result in a PHP fatal error.
  88 * The $message parameter to the ApiCheckCanExecute hook should be set to an
  89   ApiMessage. This is compatible with MediaWiki 1.27 and later. Returning a
  90   code for ApiBase::parseMsg() will no longer work.
  91 * UsageException is deprecated in favor of ApiUsageException. For the time
  92   being ApiUsageException is a subclass of UsageException to allow things that
  93   catch only UsageException to still function properly.
  94 * If, for some strange reason, code was using an ApiErrorFormatter instead of
  95   ApiErrorFormatter_BackCompat, note that the result format has changed and
  96   various methods now take a module path rather than a module name.
  97 * ApiMessageTrait::getApiCode() now strips 'apierror-' and 'apiwarn-' prefixes
  98   from the message key, and maps some message keys for backwards compatibility.
  99
 100 === Languages updated in 1.29 ===
 101
 102 MediaWiki supports over 350 languages. Many localisations are updated
 103 regularly. Below only new and removed languages are listed, as well as
 104 changes to languages because of Phabricator reports.
 105
 106 ==== No fallback for Ukrainian ====
 107 * (T39314) The fallback from Ukrainian to Russian was removed. The Ukrainian
 108   language will now use the default fallback language: English. When a translation
 109   to Ukrainian is not available, an English string will be shown.
 110
 111 === Other changes in 1.29 ===
 112 * Database::getSearchEngine() (deprecated in 1.28) was removed. Use
 113   SearchEngineFactory::getSearchEngineClass() instead.
 114 * $wgSessionsInMemcached (deprecated in 1.20) was removed. No replacement is
 115   required as all sessions are stored in Object Cache now.
 116 * MWHttpRequest::execute() should be considered to return a StatusValue; the
 117   Status return type is deprecated.
 118 * User::edits() (deprecated in 1.21) was removed.
 119 * Xml::escapeJsString() (deprecated in 1.21) was removed.
 120 * Article::getText() and Article::prepareTextForEdit() (deprecated in 1.21)
 121   were removed.
 122 * Article::getAutosummary() and WikiPage::getAutosummary (deprecated in 1.21)
 123   were removed.
 124 * Hooks ArticleViewCustom, EditPageGetDiffText and ShowRawCssJs (deprecated in 1.21)
 125   were removed.
 126 * Class RevisiondeleteAction (deprecated in 1.25) was removed.
 127 * WikiPage::prepareTextForEdit() (deprecated in 1.21) was removed.
 128 * WikiPage::getText() (deprecated in 1.21) was removed.
 129 * Article::fetchContent() (deprecated in 1.21) was removed.
 130
 131 == Compatibility ==
 132
 133 MediaWiki 1.29 requires PHP 5.5.9 or later. There is experimental support for
 134 HHVM 3.6.5 or later.
 135
 136 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 137 support for them is somewhat less mature. There is experimental support for
 138 Oracle and Microsoft SQL Server.
 139
 140 The supported versions are:
 141
 142 * MySQL 5.0.3 or later
 143 * PostgreSQL 8.3 or later
 144 * SQLite 3.3.7 or later
 145 * Oracle 9.0.1 or later
 146 * Microsoft SQL Server 2005 (9.00.1399)
 147
 148 == Upgrading ==
 149
 150 1.29 has several database changes since 1.28, and will not work without schema
 151 updates. Note that due to changes to some very large tables like the revision
 152 table, the schema update may take quite long (minutes on a medium sized site,
 153 many hours on a large site).
 154
 155 If upgrading from before 1.11, and you are using a wiki as a commons
 156 repository, make sure that it is updated as well. Otherwise, errors may arise
 157 due to database schema changes.
 158
 159 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 160 new database fields are filled with data.
 161
 162 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 163 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 164 with MediaWiki 1.21.
 165
 166 Don't forget to always back up your database before upgrading!
 167
 168 See the file UPGRADE for more detailed upgrade instructions.
 169
 170 For notes on 1.28.x and older releases, see HISTORY.
 171
 172 == Online documentation ==
 173
 174 Documentation for both end-users and site administrators is available on
 175 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 176 for pages that explicitly state that their contents are in the public domain):
 177
 178        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 179
 180 == Mailing list ==
 181
 182 A mailing list is available for MediaWiki user support and discussion:
 183
 184        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 185
 186 A low-traffic announcements-only list is also available:
 187
 188        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 189
 190 It's highly recommended that you sign up for one of these lists if you're
 191 going to run a public MediaWiki, so you can be notified of security fixes.
 192
 193 == IRC help ==
 194
 195 There's usually someone online in #mediawiki on irc.freenode.net.