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