---
title: DTR release notes
description: Learn about the new features, bug fixes, and breaking changes for Docker Trusted Registry
keywords: docker trusted registry, whats new, release notes
---

Here you can learn about new features, bug fixes, breaking changes and
known issues for each DTR version.

You can then use [the upgrade instructions](../admin/upgrade.md),
to upgrade your installation to the latest release.

---
title: DTR release notes
description: Learn about the new features, bug fixes, and breaking changes for Docker Trusted Registry
keywords: docker trusted registry, whats new, release notes
---

Here you can learn about new features, bug fixes, breaking changes and
known issues for each DTR version.

You can then use [the upgrade instructions](../admin/upgrade.md),
to upgrade your installation to the latest release.

## DTR 2.3.0 beta 1

(17 July 2017)

### New Features

* Repositories can now be configured to be “immutable” in that any existing
image can not be overwritten or deleted.
* You can now define promotion policies, to automatically copy images from one
repository to another.
* DTR now has UX for easily creating webhooks for events in repositories such
as image pushes, scans, deletions, and promotions.
* Added support for scanning Windows images for vulnerabilities.
* Support was added for handling manifest-lists for multi-architecture images.
This allows pulling different images with the same tag such as Linux and Windows.
* You can now use the web UI in Chinese.

##  General Improvements

### UI/UX

* The users page is now paginated to decrease long load times.
* Fixed the login page to be more resilient to improperly configured domain names.

### docker/dtr

* Removed requiring the `--dtr-external-url` flag during DTR installation.
* Improved error handling.
* Added extended help to the installer with the `--help-extended` flag.

### Storage
* Preserve the NFS hostname instead of resolving it during DTR installation.
* Allow using S3 compatible storage with customized certificates or without TLS
verification.

### Misc

* Simplified content cache configuration.
* Removed old, insecure 3des from the cipher list.
* Allow refresh tokens with basic auth when using the DTR API.
* Added the ability to automatically rescan any previously scanned image.

## Known issues

* The web UI works best with Chrome and Firefox. Full support for
Internet Explorer will be added on the GA release

Add release notes for DTR 2.3
Add release notes for DTR 2.3
