> ## 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If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback: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-september-3-2019",
  "feedback": "Description of the issue"
}
```

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

</AgentInstructions>

# Chainstack updates: September 3, 2019

> Protected endpoints for Quorum and Ethereum nodes, hourly Bolt snapshots, in-platform notifications, an activity log, and a full documentation overhaul.

* **Security**. [Protected endpoints](https://chainstack.com/protected-endpoints-for-ethereum-and-quorum-nodes-on-chainstack/) added for Quorum and Ethereum nodes.
* **Deployment**. Bolt snapshots are now updated hourly so that nodes are deployed and synchronized with fresher snapshots.
* **Protocols.** Numerous stability improvements for Quorum networks and nodes.
* **Activity and events**. In-platform notifications and activity log introduced to provide visibility into account activity.
* **Documentation.** Complete content and structure overhaul for improved access, browsing, and discovery.