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