Is European Portuguese a supported language in OEC?

Summary

Is European Portuguese a supported language in OEC?

Content

I understand it was not and hence in our project we have been using Brazillian Portuguese. But in the recent releases, European Portuguese can be seen in Login page,  Preference page and in KM Locale.  

When I checked with Support, they say its not supported yet.  But why would this language be displayed in dropdown inside the application , and has been added recently not before.