Solana may change how offline transactions are handled

A developer proposal would remove the long-lived signing option that was also exploited in April's attack on Drift.

On Solana, most signed transactions are valid only for a short time. A mechanism called a durable nonce allows a transaction signed offline to be submitted much later. This is useful for custodians, because their approvals can take more time.

Under the draft, the feature could be removed in May 2027 at the earliest. The decision is still open. Affected providers would need a solution that still lets them sign offline securely.