Drawing on nationally representative data from the 1988 to 2018 school years, the authors provide an overview of some of the key changes in the characteristics of first-year teachers in the U.S., including racial/ethnic identity, education levels, subject area, and certification status. The data also show that new teachers have become increasingly more likely, compared to experienced teachers, to work in schools with a greater fraction of students of color, which has consequences for equitable teacher assignments and teacher attrition.