Solana developers propose to abolish the persistent nonce transaction feature

According to CoinDesk, Solana developers have proposed to abolish the persistent nonce transaction feature, which was used in the April attack on the trading protocol Drift, resulting in a loss of at least $270 million. The proposal still requires technical approval and is expected to take effect on the mainnet as early as May 5, 2027.

Persistent nonce allows signed transactions to remain valid for a long time, enabling custodians and exchanges to perform offline signing. Relevant institutions will need to migrate to alternative solutions, and the migration requirements from the Solana Foundation may delay the final deadline.