On the 25th of March there were updates in 2009 and 2011!
In 2009 it was only a minor update, but one you still see today. From the first day of Club Penguin until March 25, 2009, membership badges did not exist. Penguins had no badge. It worked like this. If a penguin wasn’t your buddy, they’d just have a yellow dot in the top left, like this:
If the penguin was your buddy and they were online, that smiley face would have a mouth, being “:)”. If the penguin was your buddy and they were offline, that dot with two eyes and no mouth with be a shade of dark blue. It didn’t matter if the penguin was a member or not, they all had that face. Your own penguin had a star in the top left corner. With the introduction of membership badges, that all went away and members would get a new badge whenever they reached a new milestone. For penguins like me when the update was released, I instantly had the full membership badge.
In 2011 there were several updates. The biggest one was that year’s April Fool’s Day Party beginning. Penguins could earn the Purple Propeller Hat by throwing snowballs of paint on the easel at the Dock in order to paint a picture of a treasure chest, and once that painting was done the treasure chest would become real and the item would pop out. Also, members could access many special dimensions from the Box Dimension. There was a scavenger hunt that could be done by members in those dimensions to get the Box Costume item. Rookie even waddled around during the party, his first appearance on the island as a mascot! There was also a new login screen advertising the dimensions. At this party the Food Fight stamp was also introduced.
Finally, there were two new pins, as Club Penguin was releasing two new Puffle Pins every two weeks for a limited time. This time is was the Yellow Puffle Pin at the Mine Shack and the White Puffle Pin at the Book Room.
Want to see and learn more? Check out these pages about the topics mentioned above.