* (T186359) New language support: Siberian Tatar [cебертатар] (sty).
* (T186635) New language support: Guianan Creole (gcr).
* (T186647) New language support: Kumyk [къумукъ] (kum).
+* (T187750) New language support: Spanish formal address (es-formal).
=== Other changes in 1.31 ===
* Introducing multi-content-revision capability into the storage layer. For details,
'en-gb' => 'British English', # British English
'eo' => 'Esperanto', # Esperanto
'es' => 'español', # Spanish
+ 'es-formal' => 'español (formal)', # Spanish formal address
'et' => 'eesti', # Estonian
'eu' => 'euskara', # Basque
'ext' => 'estremeñu', # Extremaduran