# MGS Beta v3

## New

* Hedera Network selection: Mainnet (new), Testnet, Previewnet
* Core open-source Guardian Upgrade v2.8 to v2.11
* Self-custody of keys via MGA Vault
* High Availability
* Improved DB CPU consumption
* More pre-loaded open-source policies

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This will only cover what is new and improved with the Managed Guardian Service. For the full changelog and release notes on the open-source Guardian please visit: <https://github.com/hashgraph/guardian/releases>
{% endhint %}


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# 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.guardianservice.app/whats-new/release-notes/beta-releases/mgs-beta-v3.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.