To prepare for rapid changes in current affairs for UPSC, candidates should adopt a systematic approach. Regularly reading reputable news sources, subscribing to daily briefings, and using apps that aggregate news can help maintain updated knowledge. Creating a weekly review schedule allows aspirants not just to stay informed but also to analyze trends and implications of current events. Additionally, discussing current affairs in study groups can deepen understanding. It's important to connect current developments to the syllabus, ensuring relevance and enhancing retention during examinations.