As of December 21st 2023 Disney has made changes to the ages allowed in several of the kids clubs on the ships. The Oceaneers club and Oceaneers Lab, the main club on the ship used to allow for kids 3 to 12 years old and has now lower the max age to 10 years old. The Edge tween club is for kids age 11 to 14, previously kids that fell in the 11/12 year range could choose to go to any of the 3 clubs but now will be limited to Edge only. Vibe, the teen club will remain the same for kids 14 to 17 years old.
I have also heard from others who have cruised after this changed that the 3 and 4 year olds are being separated from the other kids in the Oceaneers club/lab and this includes older siblings. They are allowed to come over and say hello but cannot play together.