Thousands of teenagers across England, Wales and Northern Ireland are receiving their A-and AS-level results. But, in England, there have been changes to this year's A-level qualifications - the BBC News website sets out the changes.
What is different about this year's A-levels in England?
Under the new system, students sit all A-level exams at the end of two years of study, instead of taking modular exams throughout the course.
AS-level results no longer count towards A-level grades. No subject will have more than a 20% coursework…