Breaking a Long-Standing Barrier: 2-ε Approximation for Steiner Forest - Ahmadi, Ali; Gholami, Iman; Hajiaghayi, MohammadTaghi; Jabbarzade, Peyman; Mahdavi, Mohammad (2025 IEEE 66th Annual Symposium on Foundations of Computer Science (FOCS), Foundations of Computer Science (FOCS), 2025 IEEE 66th Annual Symposium on, FOCS, 2025)