=== Other changes in 1.31 ===
* MessageBlobStore::insertMessageBlob() (deprecated in 1.27) was removed.
+* The global function wfBCP47 was renamed to LanguageCode::bcp47.
+* The global function wfBCP47 is now deprecated.
== Compatibility ==
MediaWiki 1.31 requires PHP 5.5.9 or later. There is experimental support for