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
 108 === Web API changes in 1.23 ===
 109 * (bug 54884) action=parse&prop=categories now indicates hidden and missing
 110   categories.
 111 * action=query&meta=filerepoinfo now returns additional information for each
 112   repo.
 113 * action=parse&prop=languageshtml was deprecated in 1.18 and will be removed in
 114   MediaWiki 1.24.
 115 * action=parse now has disabletoc flag to disable table of contents in output.
 116 * (bug 25702) list=allcategories, list=allimages, list=alllinks, list=allpages,
 117   list=deletedrevs and list=filearchive did not handle case-sensitivity
 118   properly for all parameters.
 119 * ApiQueryBase::titlePartToKey allows an extra parameter that indicates the
 120   namespace in order to properly capitalize the title part.
 121 * (bug 57874) action=feedcontributions no longer has one item more than limit.
 122 * All API modules now support an assert parameter. See the new features section
 123   for more details.
 124 * Added prop=contributors to fetch the list of contributors to the page.
 125
 126 === Languages updated in 1.23 ===
 127
 128 MediaWiki supports over 350 languages. Many localisations are updated
 129 regularly. Below only new and removed languages are listed, as well as
 130 changes to languages because of Bugzilla reports.
 131
 132 * Support was added for Northern Luri (lrc).
 133
 134 === Other changes in 1.23 ===
 135 * The rc_type field in the recentchanges table has been superseded by a new
 136   rc_source field.  The rc_source field is a string representation of the
 137   change type where rc_type was a numeric constant.  This field is not yet
 138   queried but will be in a future point release of 1.22.
 139 ** Utilize update.php to create and populate this new field.  On larger wiki's
 140    which do not wish to update recentchanges table in one large update please
 141    review the sql and comments in maintenance/archives/patch-rc_source.sql.
 142 ** The rc_type field of recentchanges will be deprecated in a future point
 143    release.
 144 * The global variable $wgArticle has been removed after a lengthy deprecation.
 145 * The global functions addButton and insertTags (for mw.toolbar.addButton and
 146   mw.toolbar.insertTags) now emits mw.log.warn when accessed.
 147 * The ExpandTemplates extension has been moved into MediaWiki core.
 148 * (bug 52812) Removed "Disable search suggestions" from Preference.
 149 * (bug 52809) Removed "Disable browser page caching" from Preference.
 150 * Three new modules intended for use by custom skins were added:
 151   'skins.common.elements', 'skins.common.content', and 'skins.common.interface',
 152   representing three levels of standard MediaWiki styling. Previously skin
 153   creators wishing to use them had to refer to the file names of appropriate
 154   files directly, which is now discouraged.
 155 * The modules 'skins.vector' and 'skins.monobook' have been renamed to
 156   'skins.vector.styles' and 'skins.monobook.styles', respectively,
 157   and their definition was changed not to include the common*.css files;
 158   the two skins now load the 'skins.common.interface' module instead.
 159 * A page_links_updated field has been added to the page table.
 160 * SpecialPage::getTitle has been deprecated in favor of
 161   SpecialPage::getPageTitle.
 162 * BREAKING CHANGE: Two potentially backwards-incompatible changes have been made
 163   to the 'SpecialWatchlistQuery' hook's last parameter (array $values) to make
 164   the hook more consistent with the 'SpecialRecentChangesQuery' one:
 165 ** Several array keys have been renamed: hideMinor → hideminor,
 166    hideBots → hidebots, hideAnons → hideanons, hideLiu → hideliu,
 167    hidePatrolled → hidepatrolled, hideOwn → hidemyself.
 168 ** The parameter value is now a FormOptions object, not a plain array (array
 169    access operators should continue to work, as it implements the ArrayAccess
 170    interface).
 171 * Option to mark hooks as deprecated has been added.
 172
 173 ==== Removed classes ====
 174 * TitleDependency (unused)
 175 * TitleListDependency (unused)
 176 * WikiError (deprecated in 1.17)
 177 * WikiXmlError (deprecated in 1.17)
 178 * WikiErrorMsg (deprecated in 1.17)
 179
 180 ==== Renamed classes ====
 181 * CdbReader_DBA to CdbReaderDBA
 182 * CdbReader_PHP to CdbReaderPHP
 183 * CdbWriter_DBA to CdbWriterDBA
 184 * CdbWriter_PHP to CdbWriterPHP
 185 * DiffOp_Add to DiffOpAdd
 186 * DiffOp_Change to DiffOpChange
 187 * DiffOp_Copy to DiffOpCopy
 188 * DiffOp_Delete to DiffOpDelete
 189 * HWLDF_WordAccumulator to HWLDFWordAccumulator
 190 * LBFactory_Fake to LBFactoryFake
 191 * LBFactory_Multi to LBFactoryMulti
 192 * LBFactory_Simple to LBFactorySimple
 193 * LBFactory_Single to LBFactorySingle
 194 * LCStore_Accel to LCStoreAccel
 195 * LCStore_CDB to LCStoreCDB
 196 * LCStore_DB to LCStoreDB
 197 * LCStore_Null to LCStoreNull
 198 * LoadBalancer_Single to LoadBalancerSingle
 199 * LoadMonitor_MySQL to LoadMonitorMySQL
 200 * LoadMonitor_Null to LoadMonitorNull
 201 * LocalisationCache_BulkLoad to LocalisationCacheBulkLoad
 202 * csvStatsOutput to CsvStatsOutput
 203 * extensionLanguages to ExtensionLanguages
 204 * languages to Languages
 205 * statsOutput to StatsOutput
 206 * textStatsOutput to TextStatsOutput
 207 * wikiStatsOutput to WikiStatsOutput
 208
 209 ==== Removed methods ====
 210 * ApiBase::getValidNamespaces() (deprecated in 1.17)
 211 * ApiMain::setCachePrivate() (deprecated in 1.17)
 212 * ApiMain::setVaryCookie (deprecated in 1.17)
 213 * CategoryViewer::addSubcategory() (deprecated in 1.17)
 214 * EditPage::spamPage() (deprecated since 1.17)
 215 * Exif::getFormattedData() (deprecated in 1.18)
 216 * Exif::makeFormattedData() (deprecated in 1.18)
 217 * Language::convertLinkToAllVariants() (deprecated in 1.17)
 218 * LanguageConverter::convertLinkToAllVariants() (deprecated in 1.17)
 219 * Linker::makeBrokenLink() (deprecated in 1.16)
 220 * Linker::makeBrokenLinkObj() (deprecated in 1.16)
 221 * Linker::makeColouredLinkObj() (deprecated in 1.16)
 222 * Linker::makeSizeLinkObj() (deprecated in 1.17)
 223 * ProfilerSimple::getCpuTime (deprecated in 1.20)
 224 * Revision::revText() (deprecated in 1.17)
 225 * SkinTemplate::jstext() (deprecated in 1.21)
 226 * SpecialPage::__call() (deprecated in 1.17)
 227 * SpecialPage::executePath() (deprecated in 1.18)
 228 * SpecialPage::exists() (deprecated in 1.18)
 229 * SpecialPage::file() (deprecated in 1.18)
 230 * SpecialPage::func() (deprecated in 1.18)
 231 * SpecialPage::getGroup() (deprecated in 1.18)
 232 * SpecialPage::getPage() (deprecated in 1.18)
 233 * SpecialPage::getPageByAlias() (deprecated in 1.18)
 234 * SpecialPage::getLocalNameFor() (deprecated in 1.18)
 235 * SpecialPage::getRegularPages() (deprecated in 1.18)
 236 * SpecialPage::getRestrictedPages() (deprecated in 1.18)
 237 * SpecialPage::getTitleForAlias() (deprecated in 1.18)
 238 * SpecialPage::getUsablePages() (deprecated in 1.18)
 239 * SpecialPage::includable() (deprecated in 1.18)
 240 * SpecialPage::init()
 241 * SpecialPage::initAliasList() (deprecated in 1.18)
 242 * SpecialPage::initList() (deprecated in 1.18)
 243 * SpecialPage::name() (deprecated in 1.18)
 244 * SpecialPage::removePage() (deprecated in 1.18)
 245 * SpecialPage::resolveAlias() (deprecated in 1.18)
 246 * SpecialPage::resolveAliasWithSubpage() (deprecated in 1.18)
 247 * SpecialPage::restriction() (deprecated in 1.18)
 248 * SpecialPage::setGroup() (deprecated in 1.18)
 249 * SpecialRecentChanges::feedSetup()
 250 * SpecialRevisionDelete::extractBitField() (deprecated in 1.22)
 251 * User::getPageRenderingHash() (deprecated in 1.17)
 252 * WebRequest::getFileSize() (deprecated in 1.17)
 253 * WebRequest::isPathInfoBad() (deprecated in 1.17)
 254 * WikiPage::quickEdit() (deprecated in 1.18)
 255 * WikiPage::useParserCache() (deprecated in 1.18)
 256 * WikiPage::viewUpdates() (deprecated in 1.18)
 257
 258 == Compatibility ==
 259
 260 MediaWiki 1.23 requires PHP 5.3.2 or later.
 261
 262 MySQL is the recommended DBMS. PostgreSQL or SQLite can also be used, but
 263 support for them is somewhat less mature. There is experimental support for
 264 Oracle.
 265
 266 The supported versions are:
 267
 268 * MySQL 5.0.2 or later
 269 * PostgreSQL 8.3 or later
 270 * SQLite 3.3.7 or later
 271 * Oracle 9.0.1 or later
 272
 273 == Upgrading ==
 274
 275 1.23 has several database changes since 1.22, and will not work without schema
 276 updates. Note that due to changes to some very large tables like the revision
 277 table, the schema update may take quite long (minutes on a medium sized site,
 278 many hours on a large site).
 279
 280 If upgrading from before 1.11, and you are using a wiki as a commons
 281 repository, make sure that it is updated as well. Otherwise, errors may arise
 282 due to database schema changes.
 283
 284 If upgrading from before 1.7, you may want to run refreshLinks.php to ensure
 285 new database fields are filled with data.
 286
 287 If you are upgrading from MediaWiki 1.4.x or earlier, you should upgrade to
 288 1.5 first. The upgrade script maintenance/upgrade1_5.php has been removed
 289 with MediaWiki 1.21.
 290
 291 Don't forget to always back up your database before upgrading!
 292
 293 See the file UPGRADE for more detailed upgrade instructions.
 294
 295 For notes on 1.21.x and older releases, see HISTORY.
 296
 297 == Online documentation ==
 298
 299 Documentation for both end-users and site administrators is available on
 300 MediaWiki.org, and is covered under the GNU Free Documentation License (except
 301 for pages that explicitly state that their contents are in the public domain):
 302
 303         https://www.mediawiki.org/wiki/Documentation
 304
 305 == Mailing list ==
 306
 307 A mailing list is available for MediaWiki user support and discussion:
 308
 309         https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
 310
 311 A low-traffic announcements-only list is also available:
 312
 313         https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce
 314
 315 It's highly recommended that you sign up for one of these lists if you're
 316 going to run a public MediaWiki, so you can be notified of security fixes.
 317
 318 == IRC help ==
 319
 320 There's usually someone online in #mediawiki on irc.freenode.net.