# Testnet

{% hint style="info" %}
**NOTE:** this testnet spawns a new network (*nomic-testnet-9*), with a fresh state. To join the validator set, you'll need to declare your validator as detailed here: [Validating](/network/validating.md)
{% endhint %}

```console
# from `nomic` directory
git pull
git checkout v10.1.0
cargo install --path . --locked --bin nomic

# launch node:
nomic start --network testnet
```

Thanks for keeping your nodes running. Stay tuned, there will be more upgrades in the near future.


---

# 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.nomic.io/network/running-a-node/testnet.md?ask=<question>
```

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.