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 * $wgRunJobsAsync is now false by default (T142751). This change only affects
  29   wikis with $wgJobRunRate > 0.
  30
  31 === New features in 1.29 ===
  32 * (T5233) A cookie can now be set when a user is autoblocked, to track that user if
  33   they move to a new IP address. This is disabled by default.
  34 * Added ILocalizedException interface to standardize the use of localized
  35   exceptions, largely so the API can handle them more sensibly.
  36 * Blocks created automatically by MediaWiki, such as for configured proxies or
  37   dnsbls, are now indicated as such and use a new i18n message when displayed.
  38 * Added new $wgHTTPImportTimeout setting. Sets timeout for
  39   downloading the XML dump during a transwiki import in seconds.
  40
  41 === External library changes in 1.29 ===
  42
  43 ==== Upgraded external libraries ====
  44 * Updated QUnit from v1.22.0 to v1.23.1.
  45
  46 ==== New external libraries ====
  47
  48 ==== Removed and replaced external libraries ====
  49
  50 === Bug fixes in 1.29 ===
  51 * (T62604) Core parser functions returning a number now format the number according
  52   to the page content language, not wiki content language.
  53
  54 === Action API changes in 1.29 ===
  55 * Submitting sensitive authentication request parameters to action=clientlogin,
  56   action=createaccount, action=linkaccount, and action=changeauthenticationdata
  57   in the query string is now an error. They should be submitted in the POST
  58   body instead.
  59 * The capture option for action=resetpassword has been removed
  60 * action=clearhasmsg now requires a POST.
  61 * (T47843) API errors and warnings may be requested in non-English languages
  62   using the new 'errorformat', 'errorlang', and 'errorsuselocal' parameters.
  63 * API error codes may have changed. Most notably, errors from modules using
  64   parameter prefixes (e.g. all query submodules) will no longer be prefixed.
  65 * ApiPageSet-using modules will report the 'invalidreason' using the specified
  66   'errorformat'.
  67 * action=emailuser may return a "Warnings" status, and now returns 'warnings' and
  68   'errors' subelements (as applicable) instead of 'message'.
  69 * action=imagerotate returns an 'errors' subelement rather than 'errormessage'.
  70 * action=move now reports errors when moving the talk page as an array under
  71   key 'talkmove-errors', rather than using 'talkmove-error-code' and
  72   'talkmove-error-info'. The format for subpage move errors has also changed.
  73 * action=revisiondelete no longer includes a "rendered" property on warnings
  74   and errors for each item. Use errorformat=wikitext if you're wanting parsed
  75   output.
  76 * action=rollback no longer returns a "messageHtml" property. Use
  77   errorformat=html if you're wanting HTML formatting of error messages.
  78 * action=upload now reports optional stash failures as an array under key
  79   'stasherrors' rather than a 'stashfailed' text string.
  80 * action=watch reports 'errors' and 'warnings' instead of a single 'error', and
  81   no longer returns a 'message' on success.
  82 * Added action=validatepassword to validate passwords for the account creation
  83   and password change forms.
  84
  85 === Action API internal changes in 1.29 ===
  86 * New methods were added to ApiBase to handle errors and warnings using i18n
  87   keys. Methods for using hard-coded English messages were deprecated:
  88   * ApiBase::dieUsage() was deprecated
  89   * ApiBase::dieUsageMsg() was deprecated
  90   * ApiBase::dieUsageMsgOrDebug() was deprecated
  91   * ApiBase::getErrorFromStatus() was deprecated
  92   * ApiBase::parseMsg() was deprecated
  93   * ApiBase::setWarning() was deprecated
  94 * ApiBase::$messageMap is no longer public. Code attempting to access it will
  95   result in a PHP fatal error.
  96 * The $message parameter to the ApiCheckCanExecute hook should be set to an
  97   ApiMessage. This is compatible with MediaWiki 1.27 and later. Returning a
  98   code for ApiBase::parseMsg() will no longer work.
  99 * UsageException is deprecated in favor of ApiUsageException. For the time
 100   being ApiUsageException is a subclass of UsageException to allow things that
 101   catch only UsageException to still function properly.
 102 * If, for some strange reason, code was using an ApiErrorFormatter instead of
 103   ApiErrorFormatter_BackCompat, note that the result format has changed and
 104   various methods now take a module path rather than a module name.
 105 * ApiMessageTrait::getApiCode() now strips 'apierror-' and 'apiwarn-' prefixes
 106   from the message key, and maps some message keys for backwards compatibility.
 107
 108 === Languages updated in 1.29 ===
 109
 110 MediaWiki supports over 350 languages. Many localisations are updated
 111 regularly. Below only new and removed languages are listed, as well as
 112 changes to languages because of Phabricator reports.
 113
 114 * Based as always on linguistic studies on intelligibility and language
 115   knowledge by geography, language fallbacks have been expanded. When a
 116   translation is missing in the user's preferred interface language, the
 117   corresponding translation for the fallback language will be used instead.
 118   English will only be used as last resort when there are no translations.
 119   Some configurations (such as date formats and gender namespaces) have also
 120   been updated when using the fallback language's configuration was inadequate.
 121   The new or reinstated language fallbacks are (after cs ↔ sk in 1.28):
 122   hsb ↔ dsb, io → eo, mdf → ru, pnt → el, roa-tara → it.
 123
 124 ==== No fallback for Ukrainian ====
 125 * (T39314) The fallback from Ukrainian to Russian was removed. The Ukrainian
 126   language will now use the default fallback language: English. When a translation
 127   to Ukrainian is not available, an English string will be shown.
 128
 129 === Other changes in 1.29 ===
 130 * Database::getSearchEngine() (deprecated in 1.28) was removed. Use
 131   SearchEngineFactory::getSearchEngineClass() instead.
 132 * $wgSessionsInMemcached (deprecated in 1.20) was removed. No replacement is
 133   required as all sessions are stored in Object Cache now.
 134 * MWHttpRequest::execute() should be considered to return a StatusValue; the
 135   Status return type is deprecated.
 136 * User::edits() (deprecated in 1.21) was removed.
 137 * Xml::escapeJsString() (deprecated in 1.21) was removed.
 138 * Article::getText() and Article::prepareTextForEdit() (deprecated in 1.21)
 139   were removed.
 140 * Article::getAutosummary() and WikiPage::getAutosummary (deprecated in 1.21)
 141   were removed.
 142 * Hooks ArticleViewCustom, EditPageGetDiffText and ShowRawCssJs (deprecated in 1.21)
 143   were removed.
 144 * Class RevisiondeleteAction (deprecated in 1.25) was removed.
 145 * WikiPage::prepareTextForEdit() (deprecated in 1.21) was removed.
 146 * WikiPage::getText() (deprecated in 1.21) was removed.
 147 * Article::fetchContent() (deprecated in 1.21) was removed.
 148 * User::getPassword() (deprecated in 1.27) was removed.
 149 * User::getTemporaryPassword() (deprecated in 1.27) was removed.
 150 * User::isPasswordReminderThrottled() (deprecated in 1.27) was removed.
 151 * FSRepo (deprecated in 1.19) was removed.
 152 * WebRequest::checkSessionCookie() (deprecated in 1.27) was removed. Use
 153 \MediaWiki\Session\SessionManager::singleton()->getPersistedSessionId() instead.
 154 * Class ImageGallery (deprecated in 1.22) was removed.
 155   Use ImageGalleryBase::factory instead.
 156 * Title::moveNoAuth() (deprecated in 1.25) was removed. Use MovePage class instead.
 157 * Hook UnknownAction (deprecated in 1.19) was actually deprecated (it will now emit warnings).
 158   Create a subclass of Action, and add it to $wgActions instead.
 159
 160 == Compatibility ==
 161
 162 MediaWiki 1.29 requires PHP 5.5.9 or later. There is experimental support for
 163 HHVM 3.6.5 or later.
 164
 165 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 166 support for them is somewhat less mature. There is experimental support for
 167 Oracle and Microsoft SQL Server.
 168
 169 The supported versions are:
 170
 171 * MySQL 5.0.3 or later
 172 * PostgreSQL 8.3 or later
 173 * SQLite 3.3.7 or later
 174 * Oracle 9.0.1 or later
 175 * Microsoft SQL Server 2005 (9.00.1399)
 176
 177 == Upgrading ==
 178
 179 1.29 has several database changes since 1.28, and will not work without schema
 180 updates. Note that due to changes to some very large tables like the revision
 181 table, the schema update may take quite long (minutes on a medium sized site,
 182 many hours on a large site).
 183
 184 If upgrading from before 1.11, and you are using a wiki as a commons
 185 repository, make sure that it is updated as well. Otherwise, errors may arise
 186 due to database schema changes.
 187
 188 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 189 new database fields are filled with data.
 190
 191 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 192 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 193 with MediaWiki 1.21.
 194
 195 Don't forget to always back up your database before upgrading!
 196
 197 See the file UPGRADE for more detailed upgrade instructions.
 198
 199 For notes on 1.28.x and older releases, see HISTORY.
 200
 201 == Online documentation ==
 202
 203 Documentation for both end-users and site administrators is available on
 204 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 205 for pages that explicitly state that their contents are in the public domain):
 206
 207        https://www.mediawiki.org/wiki/Special:MyLanguage/Documentation
 208
 209 == Mailing list ==
 210
 211 A mailing list is available for MediaWiki user support and discussion:
 212
 213        https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 214
 215 A low-traffic announcements-only list is also available:
 216
 217        https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 218
 219 It's highly recommended that you sign up for one of these lists if you're
 220 going to run a public MediaWiki, so you can be notified of security fixes.
 221
 222 == IRC help ==
 223
 224 There's usually someone online in #mediawiki on irc.freenode.net.