Monad has proposed a wallet upgrade framework that separates wallet addresses from control credentials, allowing users to replace lost or expired keys without changing addresses or moving assets. The early draft would let users add, replace, or revoke transaction authorization credentials and support private keys, passkeys on phones and laptops, multi-signature setups, and quantum-resistant cryptographic schemes. It would also enable account recovery after key loss, conversion of ordinary accounts into multisig wallets, and upgrades to post-quantum security. Detailed implementation specifications have not yet been written.