# Proxy/Upgrade Structure * Hashstack requires a strong upgrade structure to handle integrations and new functionalities while maintaining previous user balances without migration. * The Open protocol is designed using the Modular Smart Contract standard, which closely mirrors the Diamond standard. * The Open protocol Diamond contains the core Open functionality, while the L3-Integrations Diamond contains all the integration functionalities. * The two Diamonds allow for independent addition of integrations or new functionalities in a modular and seamless fashion. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.hashstack.finance/hub/concepts/proxy-upgrade-structure.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.