Coinbase Sets Flexible Designs as Priority for Bitcoin Post-Quantum Migration

Coinbase's intervention matters less for the technical specifics than for the fact that a major custodian is staking out a position on Bitcoin's quantum roadmap before any upgrade path is settled. Framing flexibility as the priority is a signal about institutional exposure: exchanges hold large volumes of user coins, so migration mechanics — not just cryptography — become their problem. The open question is whether this pushes developers toward a design that accommodates custodial holders, or whether the debate stays purely technical.