Earlier, the maximum number of users who could join the group were 50 but with the introduction of this new feature, now maximum 100 people can be added to a group.
How to create a group :
Its quite easy to create a group on WhatsApp. Go to setting and select ‘ New group’ option. When you create a group, you are the Admin of that group. Only the Admin can add people to or remove people from the group.
If the Admin leaves the group, then group’s random member automatically becomes the admin.