lower and unicode - Mailing list pgsql-sql

Hi ,

I tested the lower with unicode on 8.0.1 and find it not to work.
If I have only latin symbols it is working well, but if I try to use 
also cyrillic the lower simpli ignore this symbols and all stay as is.
I readet that this will work on 8.x .
Exists some one using lower/upper + unicode and where can I find info 
about unicode status with pg?

regards,
ivan.