> For the complete documentation index, see [llms.txt](https://docs.umbraco.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.umbraco.com/umbraco-cloud/release-notes/archive/overview-2025/2025-06-releasenotes.md).

# June 2025

## Key Takeaways

* **Hostname Monitoring** – Get notified when your hostnames do not behave as expected, directly from the Cloud Portal.
* **CI/CD v2 with target environment support** – You can now specify a development or flexible environment by name when deploying from pipelines.
* **Umbraco version 16** – Umbraco version 16 is now available on Umbraco Cloud.
* **Managing `DOTNET_ENVIRONMENT` environment variable** - You can now view and edit the `DOTNET_ENVIRONMENT` environment variable on Cloud Portal.

## Hostname Monitoring

Hostname Monitoring is now available on Umbraco Cloud, giving you better visibility and control over your environment setup.

This feature automatically pings your hostnames from one of the supported regions and verifies that the response is as expected. If a hostname does not respond as expected, you will see it directly in the Cloud Portal. This helps you quickly identify and resolve issues that could affect your site’s availability.

## CI/CD v2 with target environment support

Version 2 of the Umbraco Cloud CI/CD feature introduces support for specifying which environment to deploy to. This makes it easier to set up automated deployments from pipelines to your Cloud environments.

Currently, target environments must be either the default development environment or a flexible environment. Deployment to the Live or Staging environments is not yet supported.

Learn more in the [CI/CD on Umbraco Cloud](https://docs.umbraco.com/umbraco-cloud/set-up/project-settings/umbraco-cicd) article.

## Umbraco version 16

You can now start new projects on Umbraco 16 or upgrade your existing projects to take advantage of the latest features and improvements.

Umbraco version 16 still runs on .NET 9, like Umbraco version 15.

## Managing `DOTNET_ENVIRONMENT` environment variable

It is now possible to view and edit the `DOTNET_ENVIRONMENT` variable on Cloud Portal. This can be done by navigating to the **Advanced** settings in the **Configuration** section.

This feature gives you more control over the configuration of your Umbraco Cloud environment. By specifying a custom `DOTNET_ENVIRONMENT` value, you can load different environment-specific settings per environment.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://docs.umbraco.com/umbraco-cloud/release-notes/archive/overview-2025/2025-06-releasenotes.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.
