> ## 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If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback: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-february-22-2023",
  "feedback": "Description of the issue"
}
```

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

</AgentInstructions>

# Chainstack updates: February 22, 2023

> Harmony moves from devnet to testnet for a better developer experience, and you can now manually retry failed Chainstack billing payments via crypto or card.

* **Protocols**. Harmony migrated from devnet to [testnet](/docs/protocols-networks) for better experience.
* **Billing**. You can now settle your failed payment by manually retrying either via topping up your crypto balance or via paying directly from your credit card.