ParserOptions::setWrapOutputClass().
* Added 'ChangeTagsAllowedAdd' hook, enabling extensions to allow software-
specific tags to be added by users.
+* File storage backends that supports headers (eg. Swift) now store an
+ X-Content-Dimensions header for originals that contain the media's dimensions
+ as page ranges keyed by dimensions.
=== External library changes in 1.30 ===
* mw.user.bucket (deprecated in 1.23) was removed.
* LoadBalancer::getServerInfo() and LoadBalancer::setServerInfo() are
deprecated. There are no known callers.
+* File::getStreamHeaders() was deprecated.
+* MediaHandler::getStreamHeaders() was deprecated.
== Compatibility ==
MediaWiki 1.30 requires PHP 5.5.9 or later. There is experimental support for