Anza’s Plan to Kill Solana’s Durable Nonces Puts Custodians on a Six-Month Clock
By Unchained
AI summary of the source article
Anza developer Gabe Rodriguez filed proposal SIMD-0723 to retire Solana's durable nonces, requiring every transaction to use a recent blockhash. The proposed change provides at least a six-month migration window, impacting custodians and exchanges.
Why it matters
The draft states that "anyone who signs a transaction now but broadcasts it after the 150-block expiry will have to rework that process, and it singles out custodians and exchanges whose approvals on air-gapped machines, kept off the internet, can outlast that window."
Key facts
- SIMD-0723 proposes retiring Solana's durable nonces, with activation on mainnet-beta not occurring before May 5, 2027.
- The change requires every transaction to have a recent blockhash that expires after 150 blocks.
- Custodians, exchanges, and token mint authorities that sign transactions offline will need to rework their signing processes.
Source excerpt · Unchained
Drift says the feature, which lets a transaction be signed now and sent much later, was central to its $295.7 million exploit. The draft bars activation before May 5, 2027. The post Anza’s Plan to Kill Solana’s Durable Nonces Puts Custodians on a Six-Month Clock appeared first on Unchained .