# Testnets Espresso Systems has released and deployed several testnets since 2022: * [Decaf](https://docs.espressosys.com/network/releases/testnets/decaf-testnet), our ongoing persistent testnet * [Cappuccino](https://docs.espressosys.com/network/releases/testnets/cappuccino-testnet-release) (May 2024) * [Gibraltar](https://docs.espressosys.com/network/releases/testnets/gibraltar-testnet-release) (January 2024) * [Cortado](https://docs.espressosys.com/network/releases/testnets/cortado-testnet-release) (September 2023) * [Doppio](https://docs.espressosys.com/network/releases/testnets/doppio-testnet-release) (July 2023) * [Americano](https://docs.espressosys.com/network/releases/testnets/americano-testnet-release) (November 2022) --- # 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.espressosys.com/network/releases/testnets.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.