Whenever a group's composition is changed, it will again go through the group development process.

This is true. Whenever there is a change in the composition of a group, such as a new member joining or an old member leaving, the group will need to go through the initial stages of group development again to establish norms, roles, and relationships with the new members. Even the addition or removal of one member can have a significant impact on the dynamics and functioning of a group.