Mayor de Blasio's recently announced 3-K for All initiative is the latest in a series of programmatic and administrative changes that have swept across the city's subsidized child care system. While this system still serves nearly 100,000 children, it has been shrinking in recent years with the implementation of the EarlyLearn program and the increased availability of options such as universal pre-k for 4-year-olds and after-school programs for school-age children that serve as an alternative to traditional child care. This report looks at how the child care system has evolved over the five years from 2012 through 2016, examining changes in capacity, enrollment, and funding while eyeing what challenges lie ahead. (author abstract)