Hey people. Pengyzu here. The new pin was released and it’s called the Safari Hat Pin. Although it seems that it is currently unavailable. It is located inside the Book Room: 
The new Penguin Style Catalog is also out. It is full of summer clothes. There are new backgrounds as well. The hidden item is the Canteen located in the 5th page by clicking the rock at the bottom-left side part of the page.
And the plants have been growing and spreading. Now, not only does it reside in igloos and the Beach. It also resides in the Town, Dock, Snow Forts, Plaza, Forest and the Cove. 
There’s also a new login screen featuring the upcoming, Adventure Party. It’s very cool. The Adventure Party also seems to be Summer Vacation Themed: 
Pengyzu's Club Penguin Blog 