+* (T208862) Action::requiresUnblock() is now called from
+ Title::getUserPermissionsErrors() and Title::userCan(). Previously, the method
+ was only called in Action::checkCanExecute(). Actions should ensure that their
+ requiresUnblock() returns the proper result (the default is `true`).
+* (T211608) The MediaWiki\Services namespace has been renamed to
+ Wikimedia\Services. The old name is still supported, but deprecated.
+* (T155582) Content::getNativeData has been deprecated. Please use model-
+ specific getters, such as TextContent::getText().
+* The class WebInstallerOutput is now marked as @private.
+* (T209699) The jquery.async module has been deprecated. JavaScript code that
+ needs asynchronous behaviour should use Promises.
+* Password::equals() is deprecated, use verify().