Congregation is the ceremony where your degree or other university award is formally given to you. It is the point at which you formally graduate from university.
Whether or not you wish to attend the congregation ceremony, you must register for it, otherwise your degree will not be regarded as “conferred" and you will not be entitled to describe yourself as holding a degree or other qualification granted by the University. If you choose not to attend the congregation ceremony but have registered to receive your award you will be conferred your award in absentia and can receive your certificate by post.
Most students will graduate at a Summer Congregation ceremony held each year in July (there is a winter congregation in February but no ceremony is held so all awards are conferred in absentia). Your School will usually share a Congregation ceremony with one other School, and there are parties for all students and their families directly after each ceremony.
More information on this year’s Congregation.