How can I know which OS7 versions incl. Danish and French as input languages?

I have just upgraded to the Blackberry Bold 9900, love my Bolds, however, I do now not have Danish as an option when I text / email / Viber. That's a problem.

I have seen replies on forums state that you just need to install an OS that supports the language you are after. Can anyone tell me HOW I can know which OS supports Danish, please? I have tried several searches in vain.

My current OS is 7.1 something. Can anyone please advise???
Thanks in advance!