A complete Solana migration to post-quantum blockchain would involve: • Adding new signature types, such as hash-based or lattice-based. • Allowing account-level key rotation. • Preserving address formats where possible. • (Might be needed) Coordinating a protocol-level hard fork similar to validator upgrades today. • If the address format is not preserved, then users need to manually transfer their assets to a new quantum-resistant address format. Compared to Bitcoin and Ethereum, Solana has the advantage. Its superior speed and throughput enable a post-quantum migration to happen in hours or days instead of months.