upgrade-stellar-contracts
Stellar Upgrades
Contents
Soroban Upgrade Model
Soroban contracts are mutable by default. Mutability refers to the ability of a smart contract to modify its own WASM bytecode, altering its function interface, execution logic, or metadata. Soroban provides a built-in, protocol-level mechanism for contract upgrades — no proxy pattern is needed.
A contract can upgrade itself if it is explicitly designed to do so. Conversely, a contract becomes immutable simply by not provisioning any upgrade function. This is fundamentally different from EVM proxy patterns:
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