RELEASE-NOTES-1.23

   1 Security reminder: MediaWiki does not require PHP's register_globals. If you
   2 have it on, turn it '''off''' if you can.
   3
   4 == MediaWiki 1.23 ==
   5
   6 THIS IS NOT A RELEASE YET
   7
   8 MediaWiki 1.23 is an alpha-quality branch and is not recommended for use in
   9 production.
  10
  11 === Configuration changes in 1.23 ===
  12 * $wgDebugLogGroups values may be set to an associative array with a
  13   'destination' key specifying the log destination. The array may also contain
  14   a 'sample' key with a positive integer value N indicating that the log group
  15   should be sampled by dispatching one in every N messages on average. The
  16   sampling is random.
  17 * In addition to the current exception log format, MediaWiki now serializes
  18   exception metadata to JSON and logs it to the 'exception-json' log group.
  19   This makes MediaWiki easier to integrate with log aggregation and analysis
  20   tools.
  21 * $wgSquidServersNoPurge now supports the use of Classless Inter-Domain
  22   Routing (CIDR) notation to specify contiguous blocks of IPv4 and/or IPv6
  23   addresses that should be trusted to provide X-Forwarded-For headers.
  24 * Preferences 'watchcreations', 'watchdefault', 'enotifwatchlistpages' ("Add
  25   pages I create and files I upload to my watchlist", "Add pages and files I
  26   edit to my watchlist", "Email me when a page or file on my watchlist is
  27   changed") are now enabled by default. In addition new user accounts' personal
  28   and talk pages are now watched by them by default.
  29 * $wgLBFactoryConf: Class names have had underscores removed. The configuration
  30   should be updated if LBFactory_Simple or LBFactory_Multi is configured.
  31 * $wgPasswordSenderName has been deprecated. To set a custom mailer name,
  32   the system message 'emailsender' should be modified (default: "{{SITENAME}}").
  33 * $wgDBAhandler was removed as the only class using it was also removed
  34 * The 'max threads' setting was removed from $wgDBservers.
  35 * Support for AdminSettings.php has been completely removed. All configuration
  36   belongs in LocalSettings.php.
  37 * $wgSkipSkin, which has been replaceable by $wgSkipSkins since 2005 (r9249), is
  38   now formally deprecated.
  39
  40 === New features in 1.23 ===
  41 * ResourceLoader can utilize the Web Storage API to cache modules client-side.
  42   Compared to the browser cache, caching in Web Storage allows ResourceLoader
  43   to be more granular about evicting stale modules from the cache while
  44   retaining the ability to retrieve multiple modules in a single HTTP request.
  45   This capability can be enabled by setting $wgResourceLoaderStorageEnabled to
  46   true. This feature is currently considered experimental and should only be
  47   enabled with care.
  48 * (bug 6092) Add expensive parser functions {{REVISIONID:}}, {{REVISIONUSER:}}
  49   and {{REVISIONTIMESTAMP:}} (with friends).
  50 * Add "wgRelevantUserName" to mw.config containing the current
  51   Skin::getRelevantUser value.
  52 * (bug 56033) Add content model to the page information.
  53 * Added Article::MissingArticleConditions hook to give extensions a chance to
  54   hide their (unrelated) log entries.
  55 * Added LonelyPagesQuery hook to let extensions modify the query used to
  56   generate Special:LonelyPages.
  57 * Added $wgOpenSearchDefaultLimit defining the default number of entries to show
  58   on action=opensearch API call.
  59 * For namespaces with $wgNamespaceProtection (including the MediaWiki
  60   namespace), the "protect" tab will be shown only if there are restriction
  61   levels available that would restrict editing beyond what
  62   $wgNamespaceProtection already applies. The protection form will offer only
  63   those protection levels.
  64 * Added $wgAPIFormatModules, allowing extensions to add additional output
  65   formatting modules for the API.
  66 * (bug 47812) The MediaWiki:Group-user.{css,js} pages can now be used to add
  67   custom CSS or JavaScript enabled only for registered users.
  68 * (bug 52005) Special pages RecentChanges, RecentChangesLinked and Watchlist
  69   now include a legend describing the symbols used in lists of changes.
  70 * Improved the accessibility of the tabs in Special:Preferences.
  71 * Added ApiBeforeMain hook, roughly equivalent to the BeforeInitialize hook:
  72   it's called after everything is set up but before any major processing
  73   happens.
  74 * The jquery.client module now performs a component-wise version comparison in
  75   its #test method when strings are used in the browser map: version '1.10' is
  76   now correctly considered larger than '1.2'. Using numbers in the version map
  77   is not affected.
  78 * All API modules now support an assert parameter, which can either be
  79   'user' or 'bot'. The API will throw an error if the user is not logged
  80   in (user) or does not have the 'bot' userright (bot). Based off of the
  81   AssertEdit extension by Steve Sanbeg.
  82 * WikitextContent will now render redirects with the expected "redirect"
  83   header, rather than as an ordered list. Code calling Article::viewRedirect
  84   can probably be changed to no longer special-case redirects.
  85 * [[Special:Diff]] was added, allowing users to create internal links to
  86   revision comparison pages using syntax such as [[Special:Diff/12345]],
  87   [[Special:Diff/12345/prev]] or [[Special:Diff/12345/98765]].
  88 * New user accounts' personal and talk pages are now watched by them by default.
  89 * Added SkinTemplateGetLanguageLink hook to allow changing the html of language
  90   links.
  91 * Added MessageCache::get hook as a new way to customize messages across
  92   multiple sites.
  93 * Added jquery.throttle-debounce ResourceLoader module to limit the number of
  94   callbacks for frequently occurring events.
  95 * Special:ProtectedPages shows now a table. The timestamp, the reason and
  96   the protecting user is also shown.
  97
  98 === Bug fixes in 1.23 ===
  99 * (bug 41759) The "updated since last visit" markers (on history pages, recent
 100   changes and watchlist) and the talk page message indicator are now correctly
 101   updated when the user is viewing old revisions of pages, instead of always
 102   acting as if the latest revision was being viewed.
 103 * (bug 56443) Special:ConfirmEmail no longer shows a "Mail a confirmation code"
 104   when the email address is already confirmed. Also, consistently use
 105   "confirmed", rather than "authenticated", when messaging whether or not the
 106   user has confirmed an email address.
 107 * (bug 56912) Show correct link color on cached result of Special:DeadendPages.
 108 * Classes TitleListDependency and TitleDependency have been removed, as they
 109   have been found unused in core and extensions for a long time.
 110 * (bug 57098) SpecialPasswordReset now obeys returnto parameter
 111 * (bug 37812) ResourceLoader will notice when a module's definition changes and
 112   recompile it accordingly.
 113 * (bug 57201) SpecialRecentChangesFilters hook is now executed for feeds.
 114 * (bug 58640) Fixed a compatibility issue with PCRE 8.34 that caused pages
 115   to appear blank or with missing text.
 116 * (bug 56931) Updated the plural rules to CLDR 24. They are in new format
 117   which is detailed in UTS 35 Rev 33. The PHP parser and evaluator as well as
 118   the JavaScript evaluator were updated to support the new format. Plural rules
 119   for some languages have changed, most notably Russian. Affected software
 120   messages have been updated and marked for review at translatewiki.net.
 121 * (bug 14323) Redirect pages, when viewed with redirect=no, no longer hide the
 122   remaining page content.
 123 * (bug 23542) imagelinks now stores both the redirect and target (as
 124   templatelinks does).
 125 * (bug 58167) The web installer no longer throws an exception when PHP is
 126   compiled without support for MySQL yet with support for another DBMS.
 127 * (bug 56199) Raw option of parser functions must now match complete word,
 128   to take effect.
 129 * (bug 60543) Special:PrefixIndex forgot stripprefix=1 for "Next page" link
 130 * (bug 29762) Undoing an already-undone edit will now display an appropriate
 131   message instead of leading the user to make a null edit.
 132
 133 === Web API changes in 1.23 ===
 134 * (bug 54884) action=parse&prop=categories now indicates hidden and missing
 135   categories.
 136 * action=query&meta=filerepoinfo now returns additional information for each
 137   repo.
 138 * action=parse&prop=languageshtml was deprecated in 1.18 and will be removed in
 139   MediaWiki 1.24.
 140 * action=parse now has disabletoc flag to disable table of contents in output.
 141 * (bug 25702) list=allcategories, list=allimages, list=alllinks, list=allpages,
 142   list=deletedrevs and list=filearchive did not handle case-sensitivity
 143   properly for all parameters.
 144 * ApiQueryBase::titlePartToKey allows an extra parameter that indicates the
 145   namespace in order to properly capitalize the title part.
 146 * (bug 57874) action=feedcontributions no longer has one item more than limit.
 147 * All API modules now support an assert parameter. See the new features section
 148   for more details.
 149 * Added prop=contributors to fetch the list of contributors to the page.
 150 * The following API modules will now return entries where fields have been
 151   revision-deleted: list=deletedrevs, list=filearchive, list=recentchanges,
 152   list=watchlist. "hidden" indicators will be included, in the same style as is
 153   already done for prop=revisions.
 154 * The following API modules will now return the content of revision-deleted
 155   fields, in addition to the "hidden" indicators, if the querying user has the
 156   necessary rights: list=logevents, list=usercontribs, prop=imageinfo,
 157   prop=revisions.
 158 * The above modules, where applicable, will now return entries filtered by
 159   revision-deleted fields if the querying user has the necessary rights. For
 160   example, prop=revisions with rvuser or rvexcludeuser will no longer skip
 161   revisions where the user was revision-deleted if the current user has the
 162   deletedhistory right.
 163 * The 'hideuser' right, used when blocking, is no longer necessary or
 164   sufficient for seeing contributions with revision-deleted in
 165   list=usercontribs.
 166 * list=watchlist now uses the querying user's rights rather than the wlowner's
 167   rights when checking whether wlprop=patrol is allowed.
 168 * (bug 32151) ApiWatch now has pageset capabilities (titles/pageids/generators).
 169   Title parameter is now deprecated.
 170 * (bug 23005) Added action=revisiondelete.
 171 * Added siprop=restrictions to API action=query&meta=siteinfo for querying
 172   possible page restriction (protection) levels and types.
 173 * Added prop 'limitreportdata' and 'limitreporthtml' to action=parse.
 174 * (bug 58627) Provide language names on action=parse&prop=langlinks.
 175 * Deprecated llurl= in favour of llprop=url for action=query&prop=langlinks.
 176 * Added llprop=langname and llprop=autonym for action=query&prop=langlinks.
 177
 178 === Languages updated in 1.23 ===
 179
 180 MediaWiki supports over 350 languages. Many localisations are updated
 181 regularly. Below only new and removed languages are listed, as well as
 182 changes to languages because of Bugzilla reports.
 183
 184 * Support was added for Northern Luri (lrc).
 185
 186 === Other changes in 1.23 ===
 187 * The rc_type field in the recentchanges table has been superseded by a new
 188   rc_source field.  The rc_source field is a string representation of the
 189   change type where rc_type was a numeric constant.  This field is not yet
 190   queried but will be in a future point release of 1.22.
 191 ** Utilize update.php to create and populate this new field.  On larger wiki's
 192    which do not wish to update recentchanges table in one large update please
 193    review the sql and comments in maintenance/archives/patch-rc_source.sql.
 194 ** The rc_type field of recentchanges will be deprecated in a future point
 195    release.
 196 * The global variable $wgArticle has been removed after a lengthy deprecation.
 197 * The global functions addButton and insertTags (for mw.toolbar.addButton and
 198   mw.toolbar.insertTags) now emits mw.log.warn when accessed.
 199 * The ExpandTemplates extension has been moved into MediaWiki core.
 200 * (bug 52812) Removed "Disable search suggestions" from Preference.
 201 * (bug 52809) Removed "Disable browser page caching" from Preference.
 202 * Three new modules intended for use by custom skins were added:
 203   'skins.common.elements', 'skins.common.content', and 'skins.common.interface',
 204   representing three levels of standard MediaWiki styling. Previously skin
 205   creators wishing to use them had to refer to the file names of appropriate
 206   files directly, which is now discouraged.
 207 * The modules 'skins.vector' and 'skins.monobook' have been renamed to
 208   'skins.vector.styles' and 'skins.monobook.styles', respectively,
 209   and their definition was changed not to include the common*.css files;
 210   the two skins now load the 'skins.common.interface' module instead.
 211 * A page_links_updated field has been added to the page table.
 212 * SpecialPage::getTitle has been deprecated in favor of
 213   SpecialPage::getPageTitle.
 214 * BREAKING CHANGE: Two potentially backwards-incompatible changes have been made
 215   to the 'SpecialWatchlistQuery' hook's last parameter (array $values) to make
 216   the hook more consistent with the 'SpecialRecentChangesQuery' one:
 217 ** Several array keys have been renamed: hideMinor → hideminor,
 218    hideBots → hidebots, hideAnons → hideanons, hideLiu → hideliu,
 219    hidePatrolled → hidepatrolled, hideOwn → hidemyself.
 220 ** The parameter value is now a FormOptions object, not a plain array (array
 221    access operators should continue to work, as it implements the ArrayAccess
 222    interface).
 223 * Option to mark hooks as deprecated has been added.
 224 * (bug 52811) Preference "Enable section editing via [edit] links" was removed.
 225 * (bug 52813) Preference "Show table of contents (for pages with more than
 226   3 headings)" was removed.
 227 * (bug 52810) Preference "Justify paragraphs" was removed.
 228 * OutputPage::showErrorPage raises a notice if arguments are incoherent.
 229 * Thumbnails that keep failing to render in thumb.php will be rate-limited
 230   againt further render attempts for 1 hour. $wgAttemptFailureEpoch can be
 231   altered to reset all rate-limited thumbnails at once.
 232 * (bug 56572) Builds of the OOjs and OOjs UI libraries are now available.
 233
 234 ==== Removed classes ====
 235 * FakeMemCachedClient (deprecated in 1.18)
 236 * RdfMetaData (unused)
 237 * TitleDependency (unused)
 238 * TitleListDependency (unused)
 239 * WikiError (deprecated in 1.17)
 240 * WikiXmlError (deprecated in 1.17)
 241 * WikiErrorMsg (deprecated in 1.17)
 242
 243 ==== Renamed classes ====
 244 * CdbReader_DBA to CdbReaderDBA
 245 * CdbReader_PHP to CdbReaderPHP
 246 * CdbWriter_DBA to CdbWriterDBA
 247 * CdbWriter_PHP to CdbWriterPHP
 248 * DiffOp_Add to DiffOpAdd
 249 * DiffOp_Change to DiffOpChange
 250 * DiffOp_Copy to DiffOpCopy
 251 * DiffOp_Delete to DiffOpDelete
 252 * HWLDF_WordAccumulator to HWLDFWordAccumulator
 253 * LBFactory_Fake to LBFactoryFake
 254 * LBFactory_Multi to LBFactoryMulti
 255 * LBFactory_Simple to LBFactorySimple
 256 * LBFactory_Single to LBFactorySingle
 257 * LCStore_Accel to LCStoreAccel
 258 * LCStore_CDB to LCStoreCDB
 259 * LCStore_DB to LCStoreDB
 260 * LCStore_Null to LCStoreNull
 261 * LoadBalancer_Single to LoadBalancerSingle
 262 * LoadMonitor_MySQL to LoadMonitorMySQL
 263 * LoadMonitor_Null to LoadMonitorNull
 264 * LocalisationCache_BulkLoad to LocalisationCacheBulkLoad
 265 * csvStatsOutput to CsvStatsOutput
 266 * extensionLanguages to ExtensionLanguages
 267 * languages to Languages
 268 * statsOutput to StatsOutput
 269 * textStatsOutput to TextStatsOutput
 270 * wikiStatsOutput to WikiStatsOutput
 271
 272 ==== Removed methods ====
 273 * ApiBase::getValidNamespaces() (deprecated in 1.17)
 274 * ApiMain::setCachePrivate() (deprecated in 1.17)
 275 * ApiMain::setVaryCookie (deprecated in 1.17)
 276 * Article::doRedirect() (deprecated in 1.18)
 277 * Article::doUnwatch() (deprecated in 1.18)
 278 * Article::doWatch() (deprecated in 1.18)
 279 * Article::forUpdate() (deprecated in 1.18)
 280 * Article::markpatrolled() (deprecated in 1.18)
 281 * Article::unwatch() (deprecated in 1.18)
 282 * Article::watch() (deprecated in 1.18)
 283 * Block::clear() (deprecated in 1.18)
 284 * Block::decodeExpiry() (deprecated in 1.18)
 285 * Block::encodeExpiry() (deprecated in 1.18)
 286 * Block::forUpdate() (deprecated in 1.18)
 287 * Block::infinity() (deprecated in 1.18)
 288 * Block::load() (deprecated in 1.18)
 289 * Block::newFromDB() (deprecated in 1.18)
 290 * Block::normaliseRange() (deprecated in 1.18)
 291 * Block::parseExpiryInput() (deprecated in 1.18)
 292 * CategoryViewer::addSubcategory() (deprecated in 1.17)
 293 * EditPage::spamPage() (deprecated since 1.17)
 294 * Exif::getFormattedData() (deprecated in 1.18)
 295 * Exif::makeFormattedData() (deprecated in 1.18)
 296 * in_string (deprecated in 1.21)
 297 * Language::convertLinkToAllVariants() (deprecated in 1.17)
 298 * LanguageConverter::convertLinkToAllVariants() (deprecated in 1.17)
 299 * Linker::makeBrokenLink() (deprecated in 1.16)
 300 * Linker::makeBrokenLinkObj() (deprecated in 1.16)
 301 * Linker::makeColouredLinkObj() (deprecated in 1.16)
 302 * Linker::makeSizeLinkObj() (deprecated in 1.17)
 303 * MediaWiki::articleFromTitle() (deprecated in 1.18)
 304 * ParserOptions::getkin() (deprecated 1.18)
 305 * ProfilerSimple::getCpuTime (deprecated in 1.20)
 306 * Revision::revText() (deprecated in 1.17)
 307 * SkinTemplate::jstext() (deprecated in 1.21)
 308 * SpecialPage::__call() (deprecated in 1.17)
 309 * SpecialPage::executePath() (deprecated in 1.18)
 310 * SpecialPage::exists() (deprecated in 1.18)
 311 * SpecialPage::file() (deprecated in 1.18)
 312 * SpecialPage::func() (deprecated in 1.18)
 313 * SpecialPage::getGroup() (deprecated in 1.18)
 314 * SpecialPage::getPage() (deprecated in 1.18)
 315 * SpecialPage::getPageByAlias() (deprecated in 1.18)
 316 * SpecialPage::getLocalNameFor() (deprecated in 1.18)
 317 * SpecialPage::getRegularPages() (deprecated in 1.18)
 318 * SpecialPage::getRestrictedPages() (deprecated in 1.18)
 319 * SpecialPage::getTitleForAlias() (deprecated in 1.18)
 320 * SpecialPage::getUsablePages() (deprecated in 1.18)
 321 * SpecialPage::includable() (deprecated in 1.18)
 322 * SpecialPage::init()
 323 * SpecialPage::initAliasList() (deprecated in 1.18)
 324 * SpecialPage::initList() (deprecated in 1.18)
 325 * SpecialPage::name() (deprecated in 1.18)
 326 * SpecialPage::removePage() (deprecated in 1.18)
 327 * SpecialPage::resolveAlias() (deprecated in 1.18)
 328 * SpecialPage::resolveAliasWithSubpage() (deprecated in 1.18)
 329 * SpecialPage::restriction() (deprecated in 1.18)
 330 * SpecialPage::setGroup() (deprecated in 1.18)
 331 * SpecialRecentChanges::feedSetup()
 332 * SpecialRevisionDelete::extractBitField() (deprecated in 1.22)
 333 * User::getPageRenderingHash() (deprecated in 1.17)
 334 * WebRequest::getFileSize() (deprecated in 1.17)
 335 * WebRequest::isPathInfoBad() (deprecated in 1.17)
 336 * wfGenerateToken (deprecated in 1.20)
 337 * wfStreamFile (deprecated in 1.19)
 338 * wfUILang (deprecated in 1.18)
 339 * WikiPage::createUpdates() (deprecated in 1.18)
 340 * WikiPage::quickEdit() (deprecated in 1.18)
 341 * WikiPage::useParserCache() (deprecated in 1.18)
 342 * WikiPage::viewUpdates() (deprecated in 1.18)
 343
 344 ==== Removed globals ====
 345 * $wgBetterDirectionality (deprecated in 1.18)
 346
 347 == Compatibility ==
 348
 349 MediaWiki 1.23 requires PHP 5.3.2 or later.
 350
 351 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 352 support for them is somewhat less mature. There is experimental support for
 353 Oracle.
 354
 355 The supported versions are:
 356
 357 * MySQL 5.0.2 or later
 358 * PostgreSQL 8.3 or later
 359 * SQLite 3.3.7 or later
 360 * Oracle 9.0.1 or later
 361
 362 == Upgrading ==
 363
 364 1.23 has several database changes since 1.22, and will not work without schema
 365 updates. Note that due to changes to some very large tables like the revision
 366 table, the schema update may take quite long (minutes on a medium sized site,
 367 many hours on a large site).
 368
 369 If upgrading from before 1.11, and you are using a wiki as a commons
 370 repository, make sure that it is updated as well. Otherwise, errors may arise
 371 due to database schema changes.
 372
 373 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 374 new database fields are filled with data.
 375
 376 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 377 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 378 with MediaWiki 1.21.
 379
 380 Don't forget to always back up your database before upgrading!
 381
 382 See the file UPGRADE for more detailed upgrade instructions.
 383
 384 For notes on 1.21.x and older releases, see HISTORY.
 385
 386 == Online documentation ==
 387
 388 Documentation for both end-users and site administrators is available on
 389 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 390 for pages that explicitly state that their contents are in the public domain):
 391
 392         https://www.mediawiki.org/wiki/Documentation
 393
 394 == Mailing list ==
 395
 396 A mailing list is available for MediaWiki user support and discussion:
 397
 398         https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 399
 400 A low-traffic announcements-only list is also available:
 401
 402         https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 403
 404 It's highly recommended that you sign up for one of these lists if you're
 405 going to run a public MediaWiki, so you can be notified of security fixes.
 406
 407 == IRC help ==
 408
 409 There's usually someone online in #mediawiki on irc.freenode.net.