‘It Can Take Years’: Coinbase Presses for Bitcoin Quantum Migration to Start Now By Adam Wilson Oct 14, 2026 12:15 EDT ViaAdam WilsonTopicsTechnology Image by anselmo7511 on Pixabay In a detailed technical post, the exchange argued Bitcoin’s multi-year migration to quantum-resistant cryptography must begin before any “Q-Day,” laying out requirements spanning block space, custody and dormant coins.