League Ranked Rebalance Targets Fairer Climbing: Iron for Learners, Master Expansion

Riot explains changes to ranked MMR distribution to improve fairness and competitiveness: Iron becomes a true learning tier by pulling more experienced players into Bronze, while the upper end of Diamond is moved toward Master to reflect playing levels; ongoing and future tweaks include possible Apex-tier expansion, LP dynamics improvements in Master+, and autofill/secondary-role parity tests with planned rollouts in 26.4 and 26.5.