+* WikiPage::getParserOutput() will now throw an exception if passed
+ ParserOptions that would pollute the parser cache. Callers should use
+ WikiPage::makeParserOptions() to create the ParserOptions object and only
+ change options that affect the parser cache key.
+* Article::viewRedirect() is deprecated.
+* DeprecatedGlobal no longer supports passing in a direct value, it requires a
+ callable factory function or a class name.
+* The $parserMemc global, wfGetParserCacheStorage(), and ParserCache::singleton()
+ are all deprecated. The main ParserCache instance should be obtained from
+ MediaWikiServices instead. Access to the underlying BagOStuff is possible
+ through the new ParserCache::getCacheStorage() method.
+* .mw-ui-constructive CSS class (deprecated in 1.27) was removed.