Chapter 2. Release Notes

This section documents the most important features and bug fixes in the Red Hat Container Development Kit 3.6 product.

2.1. Component Versions

Red Hat Container Development Kit 3.6 is shipped with the following versions of the main components:

Table 2.1. Container Development Kit, Component Versions

ComponentVersion

Docker

1.13.1

Docker API

1.26

Kubernetes

1.10.0

OpenShift Container Platform

3.10.45

2.2. VirtualBox Compatibility

Red Hat Container Development Kit 3.6 has been tested with VirtualBox 5.2.12 and higher, but is known to not work correctly with VirtualBox 5.1.11 or older. Ensure that you have VirtualBox 5.1.12 or higher if you intend to use VirtualBox as your virtualization provider. VirtualBox 5.2.12 is recommended.

2.3. New Features

This section highlights some of the new features offered by Red Hat Container Development Kit 3.6. The new version also contains a number of bug fixes.

Red Hat Container Development Kit 3.6 contains the Minishift tool, a Red Hat Enterprise Linux 7 ISO, and the oc (OpenShift client) binary for interacting with OpenShift Container Platform.

2.3.1. Minishift

Red Hat Container Development Kit 3.6 is based on Minishift, a command line tool to provision OpenShift locally for application developers. It supports all native hypervisors and some additional ones:

macOS
Linux
Windows

2.3.2. Technology Previews

Support for these features falls under the Technology Preview Features Support Scope.

  • Container Development Kit now includes the ability to run a local proxy server. The local proxy server assists with the use of CDK in a proxy environment. For more information, see Local Proxy Server.

2.3.3. Usability Improvements

  • Container Development Kit now saves non-default flags given to the minishift start command to the persistent configuration. You are not required to explicitly save these settings. To disable this feature, run the following command: 

    $ minishift config set save-start-flags false

  • Container Development Kit now allows you to start CDK with the latest OpenShift Container Platform version using the following command: 

    $ minishift start --ocp-tag latest
  • The generic driver for Container Development Kit has been improved. CDK now performs all of the required steps to allow OpenShift to start on the remote RHEL 7 machine.
  • Container Development Kit now includes a way to express dependencies between add-ons. For more information, see Defining Add-on Dependencies.