Pengur is a Club Penguin Private Server. It released March 5th, 2016 and has most of the members of the CPR Team (Flippy, Hagrid and Thorn, ect.) as Staff.
Pengur is different from other CPPS' because it has no commands and has rules. It is set in the A3 (Post-2012) Style. It's also different because instead of re-using parties from Club Penguin, Pengur has custom parties and events.
Pengur and it's predecessor, Project Coral, are now considered cancelled. Confirmed with a statement from Thorn. More info in blog post: Pengur Release