Major changes introduced in recent years to the UPSC exam pattern include the introduction of the Preliminary Exam for screening candidates, followed by the Mains Examination and a personal interview. The syllabus has expanded to emphasize current affairs and skill-based assessments. Notable changes include the reduction of optional subjects and an increased focus on General Studies. The introduction of ethics and integrity topics in the Mains has also become prominent, aiming to ensure that candidates possess both theoretical knowledge and practical understanding of civil service responsibilities.