> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt
> Use this file to discover all available pages before exploring further.

<AgentInstructions>

## Submitting Feedback

If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback:

POST https://docs.chainstack.com/feedback

```json
{
  "path": "/changelog/chainstack-updates-march-27-2023",
  "feedback": "Description of the issue"
}
```

Only submit feedback when you have something specific and actionable to report.

</AgentInstructions>

# Chainstack updates: March 27, 2023

> Polygon zkEVM testnet support for elastic and dedicated nodes is now live, plus a Hardhat tutorial covering smart contract deployment to Polygon zkEVM.

* **Protocols**. [Polygon zkEVM](/docs/protocols-networks) testnet support for elastic and dedicated nodes.
* **Documentation**

<CardGroup cols={2}>
  <Card title="Polygon zkEVM" icon="angle-right" iconType="solid" href="/docs/protocols-networks" horizontal />

  <Card title="Polygon zkEVM tutorial" icon="angle-right" iconType="solid" href="/docs/polygon-zkevm-tutorial-deploy-a-smart-contract-using-hardhat" horizontal />
</CardGroup>