For some reason the staff groups (@valvojat, @henkilokunta, @yllapito, @luottamustaso…) have disappeared with the 1.8 upgrade and reverted back to english language (staff, moderators, trustlevel). Even old posts seem to have been migrated back to english versions of these strings.
This is a rather big UX change, as user were accustomed to the localized group names. A bug or a feature, @codinghorror?