Solana Draft Would Retire Durable Nonces No Earlier Than May 2027

A draft proposal for Solana would retire durable nonces no earlier than May 2027, a feature used for offline and pre-signed transactions. Custodians relying on the mechanism would need to build new offline-signing flows, and replacement programs would apply different rules to failed transactions. The change is a technical and operational concern for institutional holders rather than an immediate price driver, though it affects how custody and settlement work on Solana.