DifferenceEngine::MW_DIFF_VERSION should be used instead.
* Use of Maintenance::error( $err, $die ) to exit script was deprecated. Use
Maintenance::fatalError() instead.
+* Passing a ParserOptions object to OutputPage::parserOptions() is deprecated.
== Compatibility ==
MediaWiki 1.31 requires PHP 5.5.9 or later. There is experimental support for