> For the complete documentation index, see [llms.txt](https://tgbtc.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tgbtc.gitbook.io/docs/whitepaper/key-concepts/additional-components-and-security-mechanisms/consensus-based-system-updates.md).

# Consensus-based System Updates

The TON Teleport BTC system is designed to be flexible and upgradable through validator consensus, ensuring seamless updates and modifications when necessary. This mechanism allows the system to evolve over time, adapt to changing conditions, and respond to new security requirements. Since the system operates within a validator-governed environment, updating contracts through validator consensus is a secure and natural process, aligning with the validators’ role in maintaining the network’s integrity.

Validators can make changes to both the code and state of core contracts by reaching a quorum. This capability allows them to address vulnerabilities, enhance functionality, and manage components such as Inspectors. Contracts in the system are divided into three groups based on their role and mutability:

<figure><img src="/files/He2QejSLi4BR7JQBWCG9" alt=""><figcaption></figcaption></figure>

The ability to update the system through validator consensus ensures long term reliability and integrity. Validators can coordinate to implement new logic, deploy updated utility contracts, and adjust components as needed without compromising the system’s core principles of decentralization and trustlessness.


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