+* BREAKING CHANGE: Two potentially backwards-incompatible changes have been made
+ to the 'SpecialWatchlistQuery' hook's last parameter (array $values) to make
+ the hook more consistent with the 'SpecialRecentChangesQuery' one:
+** Several array keys have been renamed: hideMinor → hideminor,
+ hideBots → hidebots, hideAnons → hideanons, hideLiu → hideliu,
+ hidePatrolled → hidepatrolled, hideOwn → hidemyself.
+** The parameter value is now a FormOptions object, not a plain array (array
+ access operators should continue to work, as it implements the ArrayAccess
+ interface).
+* Option to mark hooks as deprecated has been added.
+* (bug 52811) Preference "Enable section editing via [edit] links" was removed.
+* (bug 52813) Preference "Show table of contents (for pages with more than
+ 3 headings)" was removed.
+
+==== Removed classes ====
+* FakeMemCachedClient (deprecated in 1.18)
+* TitleDependency (unused)
+* TitleListDependency (unused)
+* WikiError (deprecated in 1.17)
+* WikiXmlError (deprecated in 1.17)
+* WikiErrorMsg (deprecated in 1.17)
+
+==== Renamed classes ====
+* CdbReader_DBA to CdbReaderDBA
+* CdbReader_PHP to CdbReaderPHP
+* CdbWriter_DBA to CdbWriterDBA
+* CdbWriter_PHP to CdbWriterPHP
+* DiffOp_Add to DiffOpAdd
+* DiffOp_Change to DiffOpChange
+* DiffOp_Copy to DiffOpCopy
+* DiffOp_Delete to DiffOpDelete
+* HWLDF_WordAccumulator to HWLDFWordAccumulator
+* LBFactory_Fake to LBFactoryFake
+* LBFactory_Multi to LBFactoryMulti
+* LBFactory_Simple to LBFactorySimple
+* LBFactory_Single to LBFactorySingle
+* LCStore_Accel to LCStoreAccel
+* LCStore_CDB to LCStoreCDB
+* LCStore_DB to LCStoreDB
+* LCStore_Null to LCStoreNull
+* LoadBalancer_Single to LoadBalancerSingle
+* LoadMonitor_MySQL to LoadMonitorMySQL
+* LoadMonitor_Null to LoadMonitorNull
+* LocalisationCache_BulkLoad to LocalisationCacheBulkLoad
+* csvStatsOutput to CsvStatsOutput
+* extensionLanguages to ExtensionLanguages
+* languages to Languages
+* statsOutput to StatsOutput
+* textStatsOutput to TextStatsOutput
+* wikiStatsOutput to WikiStatsOutput
+
+==== Removed methods ====
+* ApiBase::getValidNamespaces() (deprecated in 1.17)
+* ApiMain::setCachePrivate() (deprecated in 1.17)
+* ApiMain::setVaryCookie (deprecated in 1.17)
+* Article::doRedirect() (deprecated in 1.18)
+* Article::doUnwatch() (deprecated in 1.18)
+* Article::doWatch() (deprecated in 1.18)
+* Article::forUpdate() (deprecated in 1.18)
+* Article::markpatrolled() (deprecated in 1.18)
+* Article::unwatch() (deprecated in 1.18)
+* Article::watch() (deprecated in 1.18)
+* Block::clear() (deprecated in 1.18)
+* Block::decodeExpiry() (deprecated in 1.18)
+* Block::encodeExpiry() (deprecated in 1.18)
+* Block::forUpdate() (deprecated in 1.18)
+* Block::infinity() (deprecated in 1.18)
+* Block::load() (deprecated in 1.18)
+* Block::newFromDB() (deprecated in 1.18)
+* Block::normaliseRange() (deprecated in 1.18)
+* Block::parseExpiryInput() (deprecated in 1.18)
+* CategoryViewer::addSubcategory() (deprecated in 1.17)
+* EditPage::spamPage() (deprecated since 1.17)
+* Exif::getFormattedData() (deprecated in 1.18)
+* Exif::makeFormattedData() (deprecated in 1.18)
+* in_string (deprecated in 1.21)
+* Language::convertLinkToAllVariants() (deprecated in 1.17)
+* LanguageConverter::convertLinkToAllVariants() (deprecated in 1.17)
+* Linker::makeBrokenLink() (deprecated in 1.16)
+* Linker::makeBrokenLinkObj() (deprecated in 1.16)
+* Linker::makeColouredLinkObj() (deprecated in 1.16)
+* Linker::makeSizeLinkObj() (deprecated in 1.17)
+* MediaWiki::articleFromTitle() (deprecated in 1.18)
+* ParserOptions::getkin() (deprecated 1.18)
+* ProfilerSimple::getCpuTime (deprecated in 1.20)
+* Revision::revText() (deprecated in 1.17)
+* SkinTemplate::jstext() (deprecated in 1.21)
+* SpecialPage::__call() (deprecated in 1.17)
+* SpecialPage::executePath() (deprecated in 1.18)
+* SpecialPage::exists() (deprecated in 1.18)
+* SpecialPage::file() (deprecated in 1.18)
+* SpecialPage::func() (deprecated in 1.18)
+* SpecialPage::getGroup() (deprecated in 1.18)
+* SpecialPage::getPage() (deprecated in 1.18)
+* SpecialPage::getPageByAlias() (deprecated in 1.18)
+* SpecialPage::getLocalNameFor() (deprecated in 1.18)
+* SpecialPage::getRegularPages() (deprecated in 1.18)
+* SpecialPage::getRestrictedPages() (deprecated in 1.18)
+* SpecialPage::getTitleForAlias() (deprecated in 1.18)
+* SpecialPage::getUsablePages() (deprecated in 1.18)
+* SpecialPage::includable() (deprecated in 1.18)
+* SpecialPage::init()
+* SpecialPage::initAliasList() (deprecated in 1.18)
+* SpecialPage::initList() (deprecated in 1.18)
+* SpecialPage::name() (deprecated in 1.18)
+* SpecialPage::removePage() (deprecated in 1.18)
+* SpecialPage::resolveAlias() (deprecated in 1.18)
+* SpecialPage::resolveAliasWithSubpage() (deprecated in 1.18)
+* SpecialPage::restriction() (deprecated in 1.18)
+* SpecialPage::setGroup() (deprecated in 1.18)
+* SpecialRecentChanges::feedSetup()
+* SpecialRevisionDelete::extractBitField() (deprecated in 1.22)
+* User::getPageRenderingHash() (deprecated in 1.17)
+* WebRequest::getFileSize() (deprecated in 1.17)
+* WebRequest::isPathInfoBad() (deprecated in 1.17)
+* wfGenerateToken (deprecated in 1.20)
+* wfStreamFile (deprecated in 1.19)
+* wfUILang (deprecated in 1.18)
+* WikiPage::createUpdates() (deprecated in 1.18)
+* WikiPage::quickEdit() (deprecated in 1.18)
+* WikiPage::useParserCache() (deprecated in 1.18)
+* WikiPage::viewUpdates() (deprecated in 1.18)
+
+==== Removed globals ====
+* $wgBetterDirectionality (deprecated in 1.18)