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