<commit_before>---
title: UCP release notes
description: Release notes for Docker Universal Control Plane. Learn more about the
  changes introduced in the latest versions.
keywords: UCP, release notes
toc_min: 1
toc_max: 2
redirect_from:
  - /datacenter/ucp/2.2/guides/release-notes/
  - /datacenter/ucp/3.0/guides/release-notes/
---

Here you can learn about new features, bug fixes, breaking changes, and
known issues for the latest UCP version.
You can then use [the upgrade instructions](admin/install/upgrade.md) to
upgrade your installation to the latest release.

* [Version 3.0](#version-30)
* [Version 2.2](#version-22)

# Version 3.0

## 3.0.3 (2018-07-26)

**New platforms**
* Added support for Windows Server 1803.
* UCP 3.0.3 supports running on Windows Server 1803 workers. Offline bundles `ucp_images_win_1803_3.0.3.tar.gz` have been added.
* UCP 3.0.3 now supports IBM Z (s390x) as worker nodes on 3.0.x for SLES 12 SP 3. Interlock is currently not supported for 3.0.x on Z.

**Bug Fixes**
* Core
   * Optimize swarm service read api calls through UCP
   * Fixes an issue where some UCP Controller API calls may hang indefinitely.
   * Default Calico MTU set to 1480
   * Calico is upgraded to 3.0.8
   * Compose for Kubernetes logging improvements
   * Fixes an issue where backups would fail if UCP was not licensed.
   * Fixes an issue where DTR admins are missing the Full Control Grant against /Shared Collection even though they have logged in at least once to the UI.
   * Add support for bind mount volumes to kubernetes stacks and fixes sporadic errors in kubernetes stack validator that would incorrectly reject stacks.


## 3.0.2 (2018-06-21)

**New Features**
* UCP now supports running Windows Server 1709 workers
   * Server 1709 provides smaller Windows base image sizes, as detailed [here](https://docs.microsoft.com/en-us/windows-server/get-started/whats-new-in-windows-server-1709)<commit_msg>Update release-notes.md<commit_after>---
title: UCP release notes
description: Release notes for Docker Universal Control Plane. Learn more about the
  changes introduced in the latest versions.
keywords: UCP, release notes
toc_min: 1
toc_max: 2
redirect_from:
  - /datacenter/ucp/2.2/guides/release-notes/
  - /datacenter/ucp/3.0/guides/release-notes/
---

Here you can learn about new features, bug fixes, breaking changes, and
known issues for the latest UCP version.
You can then use [the upgrade instructions](admin/install/upgrade.md) to
upgrade your installation to the latest release.

* [Version 3.0](#version-30)
* [Version 2.2](#version-22)

# Version 3.0

## 3.0.3 (2018-07-26)

**New platforms**
* UCP now supports running Windows Server 1803 workers
   * Server 1803 ingress routing, VIP service discovery, and named pipe mounting are not supported in this release.
   * Offline bundles `ucp_images_win_1803_3.0.3.tar.gz` have been added.
* UCP 3.0.3 now supports IBM Z (s390x) as worker nodes on 3.0.x for SLES 12 SP 3. Interlock is currently not supported for 3.0.x on Z.

**Bug Fixes**
* Core
   * Optimize swarm service read api calls through UCP
   * Fixes an issue where some UCP Controller API calls may hang indefinitely.
   * Default Calico MTU set to 1480
   * Calico is upgraded to 3.0.8
   * Compose for Kubernetes logging improvements
   * Fixes an issue where backups would fail if UCP was not licensed.
   * Fixes an issue where DTR admins are missing the Full Control Grant against /Shared Collection even though they have logged in at least once to the UI.
   * Add support for bind mount volumes to kubernetes stacks and fixes sporadic errors in kubernetes stack validator that would incorrectly reject stacks.


## 3.0.2 (2018-06-21)

**New Features**
* UCP now supports running Windows Server 1709 workers
   * Server 1709 provides smaller Windows base image sizes, as detailed [here](https://docs.microsoft.com/en-us/windows-server/get-started/whats-new-in-windows-server-1709)
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