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Release-Bouncy-Bolson.rst

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ROS 2 Bouncy Bolson (codename 'bouncy'; June 2018)

Welcome to the latest release of ROS 2 software named Bouncy Bolson!

Supported Platforms

This version of ROS 2 is supported on four platforms (see REP 2000):

  • Ubuntu 18.04 (Bionic)
    • Debian packages for amd64 as well as arm64
  • Ubuntu 16.04 (Xenial)
    • no Debian packages but building from source is supported
  • Mac OS X 10.12 (Sierra)
  • Windows 10 with Visual Studio 2017

Binary packages as well as instructions for how to compile from source are provided (see install instructions <Installation> as well as documentation).

Features

New features in this ROS 2 release

  • New launch system <Launch-system> featuring a much more capable and flexible Python API.
  • Parameters can be passed as command line arguments <Node-arguments> to C++ executables.
  • Static remapping via command line arguments <Node-arguments>.
  • Various improvements to the Python client library.
  • Support for publishing and subscribing to serialized data. This is the foundation for the upcoming work towards a native rosbag implementation.
  • More command line tools <Introspection-with-command-line-tools>, e.g. for working with parameters and lifecycle states.
  • Binary packages / fat archives support three RMW implementations by default (without the need to build from source):
    • eProsima's FastRTPS (default)
    • RTI's Connext
    • ADLINK's OpenSplice

For an overview of all features available, including those from earlier releases, please see the Features <Features> page.

Changes since the Ardent release

Changes since the Ardent Apalone <Release-Ardent-Apalone> release:

  • The Python package launch has been redesigned. The previous Python API has been moved into a submodule launch.legacy. You can update existing launch files to continue to use the legacy API if a transition to the new Python API is not desired.
  • The ROS topic names containing namespaces are mapped to DDS topics including their namespaces. DDS partitions are not being used anymore for this.
  • The recommended build tool is now colcon instead of ament_tools. This switch has no implications for the code in each ROS 2 package. The install instructions have been updated and the read-the-docs page describes how to map an existing ament_tools call to colcon.
  • The argument order of this rclcpp::Node::create_subscription() signature has been modified.

Known Issues