+* The hooks 'SpecialRecentChangesFilters' & 'SpecialWatchlistFilters' deprecated
+ in 1.23 were removed. Instead, use 'ChangesListSpecialPageStructuredFilters'.
+ The ChangesListSpecialPage code for these legacy hooks, and their use in
+ SpecialRecentchanges.php and SpecialWatchlist, was also removed:
+ * ChangesListSpecialPage->getCustomFilters()
+ * ChangesListSpecialPage->getFilterGroupDefinitionFromLegacyCustomFilters()
+ * ChangesListSpecialPage::customFilters
+* The global function wfUseMW, deprecated since 1.26, has now been removed. Use
+ the "requires" property of static extension registration instead.
+* $wgSpecialPages no longer accepts array syntax, deprecated since 1.18.
+* The MailAddress constructor can no longer be called with a User object,
+ behaviour which has been deprecated since 1.24.
+* LBFactory, deprecated since 1.28, has been removed. Instead, use
+ Wikimedia\Rdbms\LBFactory.
+* The MimeMagic class, deprecated since 1.28 has been removed. Get a
+ MimeAnalyzer instance from MediaWikiServices instead.
+* The '--tidy' option to maintenance/parse.php has been removed. Tidying
+ the output is now the default. Use '--no-tidy' to bypass the tidy
+ phase.