On the 9th of March updates have only happened in 2007. There were two updates and both were related to Rockhopper.
The most important of the two updates was Rockhopper arriving at the Club Penguin island for another visit! The free item he brought for all players was the Pirate Shoes. In his catalogue everyone would purchase the Sea Monster Background for 60 coins and members could additionally purchase both the Tricorn Hat for 350 coins and the Sailor Shirt for 150 coins.
The second and final update in 2007 was the Rockhopper and the Stowaway book being added to the bookshelf in the Book Room.
Want to see and learn more? Check out these pages about the topics mentioned above.