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

# October 4, 2023

**Released October 4, 2023**. [Link to PyPI](https://pypi.org/project/beam-sdk/0.15.4/).

# Features

### Subdomains and custom DNS

Beam now supports subdomains!

```sh theme={null}
https://[APP-ID].apps.beam.cloud
```

Subdomains are exciting because they unlock a few important features:

* **Add multiple routes per API**. You can create apps that have custom routes. For example, you could deploy an app with a `/predict` endpoint, a `/training` endpoint, and a `/health` endpoint. All in the same app!
* **Easier URL whitelisting**. Subdomains make it easier to control which URLs are whitelisted in your organization. This enables you to create whitelisting for individual endpoints, limiting the amount of whitelisted content entering your firewall.
* **Custom CNAMEs and TLS**. Want your apps to be hosted at `app-name.my-company.com`? That’s coming soon.

<Warning>
  **Subdomains are backwards compatible.** You don't need to change your existing URLs if you don’t want to.
</Warning>