# Solana Plans to Remove Durable Nonces and Move Offline Signing Into Onchain Programs

Anza's Programmatic Signer and Blueshift's Vector are the leading replacements, and activation on mainnet is expected about six months after one is ready, so custodians will have to rebuild their cold-signing processes.

- Published: 2026-10-13T05:42:08.752Z
- Canonical: https://polylog.news/crypto/2026-10-13/solana-plans-to-remove-durable-nonces-and-move-offline-signi
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CryptoSlate](https://cryptoslate.com/solanas-cold-wallet-migration-plan-would-add-a-new-layer-between-keys-and-funds/), [Solana (upgrades)](https://solana.com/upgrades/durable-nonce-deprecation)

Solana developers plan to remove durable nonces. A durable nonce is a runtime feature that lets a transaction be signed offline and submitted later, without the short-lived recent blockhash that normal Solana transactions need. Custodians,…

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