This in-depth review was mandated by the Conference of European Statisticians (CES) Bureau and discusses the importance of timeliness, frequency and granularity of official statistics. A seminar on the same topic was held during the seventy-first CES plenary session in June 2023. The review summarizes national and international efforts in responding to continued demand for more timely, frequent and granular official statistics through innovative methodologies, new data sources, statistical registers and advanced technologies, and identifies key issues and challenges related to these efforts. Section VIII summarizes the discussion by the Bureau of the Conference of European Statisticians at its meeting in February 2024.