If you should marry or enter a civil partnership, then this will automatically cancel any existing will (unless that existing will was made in contemplation of that marriage). You should make a new will as soon as possible. Divorce does not automatically invalidate a will made during the marriage, but it means that your ex-spouse or civil partner will not be able to benefit if they are mentioned in the will, even if you want them to. It is a good idea to make a new will if you marry, separate or divorce.