Players and Officials are now completely separate records.
Previously, you could tag players as officials by checking the "Official" checkbox in the player record. This checkbox has been removed and officials are now their own separate record. All existing officials have been copied over.
This was done to remove any confusion between players and officials (and it makes the database much cleaner as well).
Your current officials will have a leftover player record. These "player" records can be safely deleted if the individual has never played a match as a player. (The system won't let you delete the player record if the player has played in a match in any case)