At the start of the unprecedented 2020-2021 school year, many schools prioritized or re-prioritized social and emotional learning (SEL) to foster the competencies and learning environments that students and adults need to reunite, renew, and thrive. Entering the second half of the school year, many students will make new transitions -- from distance learning back to in-person learning, or vice versa -- and SEL remains as important as ever. This updated brief focuses on three strategies, adapted from "Reunite, Renew, and Thrive: Social and Emotional Learning Roadmap for Reopening Schools" (ED610705), to help prepare for a successful second semester based on insights into how schools districts nationwide have prioritized SEL this year. These strategies are: (1) partner with staff, students, families, and communities to examine data from the first semester on students' and adults' experiences and social, emotional, and academic outcomes; (2) refocus on adult connections, self-care, competencies, and capacity; and (3) maintain safe, supportive, and equitable learning environments and continuously promote all students' social and emotional development.