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How Does Blockchain Immutability Affect Smart Contract Updates or Bug Fixes?

Immutability prevents direct changes to smart contracts, so developers use proxy patterns to point to new, updated versions of the code.
Greeks.Live05.11.25

How Does Blockchain Immutability Affect Smart Contract Updates or Bug Fixes?

Blockchain immutability means that once a smart contract is deployed, its code cannot be changed. This makes bug fixes or updates challenging.

To address this, developers use upgrade patterns, such as the "proxy pattern." This involves deploying a proxy contract that users interact with, which then delegates calls to a separate logic contract. To upgrade, a new logic contract is deployed, and the proxy is simply updated to point to the new address.

This allows for modifications while maintaining a stable contract address, though it requires careful governance to authorize such upgrades.

Which Proxy Standard Is Generally Preferred for New DeFi Protocols and Why?
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What Is the Difference between a Transparent Proxy and a UUPS Proxy?
What Are the Design Patterns for Upgrading Smart Contracts despite Their Immutability?

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