RELEASE-NOTES-1.21

   1
   2 Security reminder: MediaWiki does not require PHP's register_globals. If you
   3 have it on, turn it '''off''' if you can.
   4
   5 == MediaWiki 1.21 ==
   6
   7 THIS IS NOT A RELEASE YET
   8
   9 MediaWiki 1.21 is an alpha-quality branch and is not recommended for use in
  10 production.
  11
  12 === Configuration changes in 1.21 ===
  13 * (bug 29374) $wgVectorUseSimpleSearch is now enabled by default.
  14 * Deprecated $wgAllowRealName is removed. Use $wgHiddenPrefs[] = 'realname'
  15   instead.
  16 * (bug 39957) Added $wgUnwatchedPageThreshold, specifying minimum count
  17   of page watchers required for the number to be accessible to users
  18   without the unwatchedpages permission.
  19 * $wgBug34832TransitionalRollback has been removed.
  20
  21 === New features in 1.21 ===
  22 * (bug 38110) Schema changes (adding or dropping tables, indicies and
  23   fields) can be now be done separately from from other changes that
  24   update.php makes.  This is useful in environments that use database
  25   permissions to restrict schema changes but allow the DB user that
  26   MediaWiki normally runs as to perform other changes that update.php
  27   makes.  Schema changes can be run seperately.  See the file UPGRADE
  28   for more information.
  29 * (bug 34876) jquery.makeCollapsible has been improved in performance.
  30 * Added ContentHandler facility to allow extensions to support other content
  31   than wikitext. See docs/contenthandler.txt for details.
  32 * New feature was developed for showing high-DPI thumbnails for high-DPI mobile
  33   and desktop displays (configurable with $wgResponsiveImages).
  34 * Added new backend to represent and store information about sites and site
  35   specific configuration.
  36 * jQuery upgraded from 1.8.2 to 1.8.3.
  37 * jQuery UI upgraded from 1.8.23 to 1.8.24.
  38 * Added separate fa_sha1 field to filearchive table. This allows sha1
  39   searches with the api in miser mode for deleted files.
  40 * Add initial and programmatic sorting for tablesorter.
  41 * Add the event "sortEnd.tablesorter", triggered after sorting has completed.
  42 * The Job system was refactored to allow for different backing stores for
  43   queues as well as cross-wiki access to queues, among other things. The schema
  44   for the DB queue was changed to support better concurrency and reduce
  45   deadlock errors.
  46 * Added ApiQueryORM class to facilitate creation of query API modules based on
  47   tables that have a corresponding ORMTable class.
  48 * (bug 40876) Icon for PSD (Adobe Photoshop) file types.
  49 * (bug 40641) Implemented Special:Version/Credits with a list of contributors.
  50 * (bug 7851) Implemented one-click AJAX patrolling.
  51 * The <data>, <time>, <meta>, and <link> elements are allowed within WikiText
  52   for use with Microdata.
  53 * The HTML5 <mark> tag has been whitelisted.
  54 * Added ParserCloned hook for when the Parser object is cloned.
  55 * Added AlternateEditPreview hook to allow extensions to replace the page
  56   preview from the edit page.
  57 * Added EditPage::showStandardInputs:options hook to allow extensions to add
  58   new fields to the "editOptions" area of the edit form.
  59 * Upload stash DB schema altered to improve upload performance.
  60 * The following global functions are now reporting deprecated warnings in
  61   debug mode: wfMsg, wfMsgNoTrans, wfMsgForContent, wfMsgForContentNoTrans,
  62   wfMsgReal, wfMsgGetKey, wfMsgHtml, wfMsgWikiHtml, wfMsgExt, wfEmptyMsg. Use
  63   the Message class, or the global method wfMessage.
  64 * Added $wgEnableCanonicalServerLink, off by default. If enabled, a
  65   <link rel=canonical> tag is added to every page indicating the correct server
  66   to use.
  67 * Debug message emitted by wfDebugLog() will now be prefixed with the group
  68   name when its logged to the default log file. That is the case whenever the
  69   group has no key in wgDebugLogGroups, that will help triage the default log.
  70 * (bug 24620) Add types to LogFormatter.
  71 * jQuery JSON upgraded from 2.3 to 2.4.0.
  72 * Added GetDoubleUnderscoreIDs hook, for modifying the list of magic words.
  73 * DatabaseUpdater class has two new methods to ease extensions schema changes:
  74   dropExtensionIndex and renameExtensionIndex.
  75 * New preference type - 'api'. Preferences of this type are not shown on
  76   Special:Preferences, but are still available via the action=options API.
  77 * (bug 39397) Hide rollback link if a user is the only contributor of the page.
  78 * $wgPageInfoTransclusionLimit limits the list size of transcluded articles
  79   on the info action. Default is 50.
  80 * Added action=createaccount to allow user account creation.
  81
  82 === Bug fixes in 1.21 ===
  83 * (bug 40353) SpecialDoubleRedirect should support interwiki redirects.
  84 * (bug 40352) fixDoubleRedirects.php should support interwiki redirects.
  85 * (bug 9237) SpecialBrokenRedirect should not list interwiki redirects.
  86 * (bug 34960) Drop unused fields rc_moved_to_ns and rc_moved_to_title from
  87   recentchanges table.
  88 * (bug 32951) Do not register internal externals with absolute protocol,
  89   when server has relative protocol.
  90 * (bug 39005) When purging proxies listed in $wgSquidServers using HTTP PURGE
  91   method requests, we now send a Host header by default, for Varnish
  92   compatibility. This also works with Squid in reverse-proxy mode. If you wish
  93   to support Squid configured in forward-proxy mode, set
  94   $wgSquidPurgeUseHostHeader to false.
  95 * (bug 37020) sql.php with readline eats semicolon.
  96 * (bug 11748) Properly handle optionally-closed HTML tags when Tidy is
  97   disabled, and don't wrap HTML-syntax definition lists in paragraphs.
  98 * (bug 41409) Diffs while editing an old revision should again diff against the
  99   current revision.
 100 * (bug 41494) Honor $wgLogExceptionBacktrace when logging non-API exceptions
 101   caught during API execution.
 102 * (bug 37963) Fixed loading process for user options.
 103 * (bug 26995) Update filename field on Upload page after having sanitized it.
 104 * (bug 41793) Contribution links to users with 0 edits on Special:ListUsers
 105   didn't show up red.
 106 * (bug 41899) A PHP notice no longer occurs when using the "rvcontinue" API
 107   parameter.
 108 * (bug 42036) Account creation emails now contain canonical (not
 109   protocol-relative) URLs.
 110 * (bug 41990) Fix regression: API edit with redirect=true and lacking
 111   starttimestamp and basetimestamp should not cause an edit conflict.
 112 * (bug 41706) EditPage: Preloaded page should be converted if possible and
 113   needed.
 114 * (bug 41886) Rowspans are no longer exploded by tablesorter until the table is
 115   actually sorted.
 116 * (bug 2865)  User interface HTML elements don't use lang attribute.
 117   (completed the fix by adding the lang attribute to firstHeading).
 118 * (bug 42173) Removed namespace prefixes on Special:UncategorizedCategories.
 119 * (bug 36053) Log in "returnto" feature forgets query parameters if no
 120   title parameter was specified.
 121 * (bug 42410) API action=edit now returns correct timestamp for the new edit.
 122 * (bug 14901) Email notification mistakes log action for new page creation.
 123   Enotif no longer sends "page has been created" notifications for some log
 124   actions. The following events now have a correct message: page creation,
 125   deletion, move, restore (undeletion), change (edit). Parameter
 126   $CHANGEDORCREATED is deprecated in 'enotif_body' and scheduled for removal in
 127   MediaWiki 1.23.
 128 * (bug 457) In the sidebar of Vector, CologneBlue, Monobook, and Monobook-based
 129   skins, the heading levels have been changed from (variously per skin)
 130   <h4>, <h5> or <h6> to only <h3>s, with a <h2> hidden heading above them.
 131   If you are styling or scripting the headings in a custom way, this change
 132   will require updates to your site's CSS or JS.
 133 * (bug 41342) jquery.suggestions should cancel any active (async) fetches
 134   before it triggers another fetch.
 135 * (bug 42184) $wgUploadSizeWarning missing second variable.
 136 * (bug 34581) removeUnusedAccounts.php maintenance script now ignores newuser
 137   log when determining whether an account is used.
 138 * (bug 43379) Gracefully fail if rev_len is unavailable for a revision on the
 139   History page.
 140 * (bug 42949) API no longer assumes all exceptions are MWException.
 141 * (bug 41733) Hide "New user message" (.usermessage) element from printable view.
 142 * (bug 39062) Special:Contributions will display changes that don't have
 143   a parent id instead of just an empty bullet item.
 144 * (bug 37209) "LinkCache doesn't currently know about this title" error fixed.
 145 * wfMerge() now works if $wgDiff3 contains spaces
 146
 147 === API changes in 1.21 ===
 148 * prop=revisions can now report the contentmodel and contentformat.
 149   See docs/contenthandler.txt.
 150 * action=edit and action=parse now support contentmodel and contentformat
 151   parameters to control the interpretation of page content.
 152   See docs/contenthandler.txt for details.
 153 * (bug 35693) ApiQueryImageInfo now suppresses errors when unserializing metadata.
 154 * (bug 40111) Disable minor edit for page/section creation by API.
 155 * (bug 41042) Revert change to action=parse&page=... behavior when the page
 156   does not exist.
 157 * (bug 27202) Add timestamp sort to list=allimages.
 158 * (bug 43137) Don't return the sha1 of revisions through the API if the content is
 159   revision-deleted.
 160 * ApiQueryImageInfo now also returns imageinfo for redirects.
 161 * list=alltransclusions added to enumerate every instance of page embedding
 162 * list=alllinks & alltransclusions now allow both 'from' and 'continue' in
 163   the same query. When both are present, 'from' is simply ignored.
 164 * list=alllinks & alltransclusions now allow 'unique' in generators, to yield
 165   a list of all link/template target pages instead of source pages.
 166 * BREAKING CHANGE: list=logevents output format changed for details of some log
 167   types. Specifically, details that were formerly reported under a key like
 168   "4::foo" will now be reported under a key of simply "foo".
 169
 170 === Languages updated in 1.21 ===
 171
 172 MediaWiki supports over 350 languages. Many localisations are updated
 173 regularly. Below only new and removed languages are listed, as well as
 174 changes to languages because of Bugzilla reports.
 175
 176 * South Azerbaijani (azb) added.
 177 * (bug 30040) Autonym for nds-nl is now 'Nedersaksies' (was 'Nedersaksisch').
 178 * (bug 34977) Now formatted numbers in Spanish use space as separator
 179   for thousands, as mandated by the Real Academia Española.
 180 * (bug 35031) Kurdish formatted numbers now use period and comma
 181   as separators for thousands and decimals respectively.
 182
 183 === Other changes in 1.21 ===
 184
 185 == Compatibility ==
 186
 187 MediaWiki 1.21 requires PHP 5.3.2 or later.
 188
 189 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 190 support for them is somewhat less mature. There is experimental support for IBM
 191 DB2 and Oracle.
 192
 193 The supported versions are:
 194
 195 * MySQL 5.0.2 or later
 196 * PostgreSQL 8.3 or later
 197 * SQLite 3.3.7 or later
 198 * Oracle 9.0.1 or later
 199
 200 == Upgrading ==
 201
 202 1.21 has several database changes since 1.20, and will not work without schema
 203 updates. Note that due to changes to some very large tables like the revision
 204 table, the schema update may take quite long (minutes on a medium sized site,
 205 many hours on a large site).
 206
 207 If upgrading from before 1.11, and you are using a wiki as a commons
 208 repository, make sure that it is updated as well. Otherwise, errors may arise
 209 due to database schema changes.
 210
 211 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 212 new database fields are filled with data.
 213
 214 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 215 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 216 with MediaWiki 1.21.
 217
 218 Don't forget to always back up your database before upgrading!
 219
 220 See the file UPGRADE for more detailed upgrade instructions.
 221
 222 For notes on 1.19.x and older releases, see HISTORY.
 223
 224 == Online documentation ==
 225
 226 Documentation for both end-users and site administrators is available on
 227 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 228 for pages that explicitly state that their contents are in the public domain):
 229
 230         https://www.mediawiki.org/wiki/Documentation
 231
 232 == Mailing list ==
 233
 234 A mailing list is available for MediaWiki user support and discussion:
 235
 236         https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 237
 238 A low-traffic announcements-only list is also available:
 239
 240         https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 241
 242 It's highly recommended that you sign up for one of these lists if you're
 243 going to run a public MediaWiki, so you can be notified of security fixes.
 244
 245 == IRC help ==
 246
 247 There's usually someone online in #mediawiki on irc.freenode.net.