# Reference Guides - [Connections](https://documentation.immuta.com/saas/configuration/integrations/data-and-integrations/registering-a-connection/reference-guides/connections-overview.md): Learn how connections work and about feature limitations - [Upgrading to Connections](https://documentation.immuta.com/saas/configuration/integrations/data-and-integrations/registering-a-connection/reference-guides/upgrading-to-connections.md): Learn about how to migrate from legacy integrations to using connections - [Before You Begin](https://documentation.immuta.com/saas/configuration/integrations/data-and-integrations/registering-a-connection/reference-guides/upgrading-to-connections/before-you-begin.md): Understand the differences between the legacy integration and onboarding method and connections - [API Changes](https://documentation.immuta.com/saas/configuration/integrations/data-and-integrations/registering-a-connection/reference-guides/upgrading-to-connections/api-changes.md): Understand the API endpoints that are deprecated after moving to connections and what endpoints to use instead - [FAQ](https://documentation.immuta.com/saas/configuration/integrations/data-and-integrations/registering-a-connection/reference-guides/upgrading-to-connections/faq.md): Consult frequently asked questions to understand how you will be affected by upgrading to connections --- # 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://documentation.immuta.com/saas/configuration/integrations/data-and-integrations/registering-a-connection/reference-guides.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.