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