Key takeaways from the transitions in UPSC exam formats over the years include a shift towards holistic evaluation of candidates, reflecting a broader skillset. The change from subjective to objective questions in preliminary exams makes it imperative to understand concepts rather than rote memorization. Incorporating a personality assessment during interviews underscores the need for strong soft skills alongside academic prowess. Additionally, the increasing emphasis on current affairs aligns with the dynamic nature of governance. Keeping abreast of these changes helps candidates adapt their study strategies accordingly, ensuring they meet evolving expectations of the UPSC examination.