---
title: UCP release notes
description: Release notes for Docker Universal Control Plane. Learn more about the
  changes introduced in the latest versions.
keywords:
- Docker, UCP
- Release notes
- Versions
---

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](installation/upgrade.md), to
upgrade your installation to the latest release.

## Version 2.0.1

(22 Nov 2016)

**Features**

* UI/UX
  * The node details page now shows information about the node's CPU and RAM
  * Improved applications page to provide more guidance when there are no apps deployed

**Bug Fixes**

* Core
  * Fixed an issue with rethinkDB sync that causes timeout failures during upgrades
  * HTTP routing mesh no longer crashes if a routed service fails. It also
  provides better error messages in the CLI

* docker/ucp image
  * Install and upgrade timeouts were increased to ensure the swarm managed by
  UCP is fully operational
  * Using `--external-server-cert` at install time now correctly preserves
  pre-existing server certificates
  * Joining a node that's using a non-default Docker runtime path now works as
  expected

* UI/UX
  * Several buttons and links are now hidden if the user has "Read-Only"
  permissions, e.g. deploy application, create volumes, create images
  * When importing users from LDAP, the change password fields are no longer
  displayed in the user profile
  * When integrating with LDAP, the LDAP reader password is no longer displayed
  on the UI or HTML
  * Clarified that service resource constraints use absolute instead of nano CPU
  shares. This is consistent with the Docker CLI
  * UI now prompts for confirmation when switching from LDAP to built-in
  authentication
  * Improved DTR integration screen, to provide more guidance on how to install
  DTR


## Version 2.0.0

(10 Nov 2016)

**Features**

* Native support for Docker Engine 1.12 running in swarm mode
* Support for declaring the application desired state with `docker service`
* Backwards compatibility for using `docker run`, `docker-compose`,
`docker logs`, and `docker exec` commands on UCP
* Pause and drain nodes for putting nodes in maintenance
* Specify container health checks in a Dockerfile and view container status
in the web UI
* Granular label-based access control for services and networks
* Use Docker content trust to enforce only running images signed by members
of specific teams
* Built-in TCP load balancing and service discovery for services
* Added an HTTP routing mesh for enabling hostname routing for services
(experimental)
* The UCP web UI now lets you know when a new version is available, and upgrades
to the the new version with a single click

**Installer**

* You can now install UCP on an existing Docker Engine 1.12 swarm, by running
the UCP install command on manager node. Requires CS Engine 1.12 or higher.
* It's now possible to install a new UCP cluster using a backup using the
`restore` command. This preserves the UCP cluster configurations but not any
application services or networks from the old cluster.

**Web UI**

* Web UI has been significantly redesigned for this release
* Add, remove, pause, and drain nodes from the web UI and see their status
in real-time
* One-click promotion of worker nodes to managers for high availability
* You can now reconfigure certificates, SANs, and key-value store parameters
from the UI
* Added getting started guides and tooltips for guiding new users on the
platform
* Added instructions to the web UI on how to install and integrate with DTR
* Added a wizard to make it simpler to deploy Docker services from the UI

**General improvements**

* UCP and DTR system resources are now hidden and protected from non-admin users
* Improved support dump with more system information, readable file formats,
and container names/IDs
* LDAP/AD now lists up to 1 million users