> ## 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If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback: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-april-22-2020",
  "feedback": "Description of the issue"
}
```

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

</AgentInstructions>

# Chainstack updates: April 22, 2020

> Corda Network and Pre-Production Network support, Hyperledger Fabric 2.1.0, AWS US West region, secure vault for Corda identity keys, and identity management.

* **Protocols**
  * Corda Network and Corda Pre-Production Network support. You can now join the Corda production and pre-production networks. See also Join a public network.
  * Hyperledger Fabric 2.1.0 support.
* **Clouds**. You can now deploy your nodes and networks in the Amazon Web Services US West region.
* **Vault**. You can now store your Corda identity key material in a secure vault.
* **Identity management**. You can now securely manage your organization identity for the Corda networks.