The Arkansas Better Chance (ABC) program longitudinal study (2009-2021) reviews the changing circumstances and outcomes of participation in Pre-K services in Arkansas. The "core comparison" of this study is between ABC participants and students who had no known Pre-K participation but have similar low socio-economic household income levels. The results show that ABC participants generally have better ACT Aspire proficiency, better attendance rates in kindergarten, elementary, and secondary school, as well as lower rates of chronic absenteeism, and higher persistence compared to students of similar socioeconomic status who had no known Pre-K services. The study also examines changes in the type of Pre-K services used as well as changes in meal status designation for kindergarten students. Compared to a decade earlier, ABC participants in Fiscal Year 2021 make up a larger share of Division of Elementary and Secondary Education (DESE) kindergarten enrollees and are more likely to have Direct Certification or free meal status. This data on Pre-K participation and meal status provide the context for the comparison scores that make up the bulk of the analysis.