+* (T198214) Old Tidy-related configuration settings, which were soft-deprecated
+ in MediaWiki 1.26, have now been hard deprecated. This affects $wgUseTidy,
+ $wgTidyBin, $wgTidyConf, $wgTidyOpts, $wgTidyInternal, and $wgDebugTidy. Use
+ $wgTidyConfig instead.
+* All Tidy configurations other than Remex have been hard deprecated;
+ future parsers will not emit compatible output for these configurations.
+* QuickTemplate::msgHtml() and BaseTemplate::msgHtml() have been deprecated
+ as they promote bad practises. I18n messages should always be properly
+ escaped.
+* Skin::getDynamicStylesheetQuery() has been deprecated. It always
+ returns action=raw&ctype=text/css which callers should use directly.
+* Class LegacyFormatter is deprecated.
+* Use of CommentStore::insertWithTempTable() with 'img_description' is
+ deprecated. Use CommentStore::insert() instead.
+* Language::setCode is deprecated as public function. Use Language::factory
+ to create a new Language object with a different language code.