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ROS 2 Crystal Clemmys (codename ‘crystal’; December 2018)

Crystal Clemmys is the third release of ROS 2.

Supported Platforms

Crystal Clemmys is primarily supported on the following platforms (see REP 2000 for full details):

Tier 1 platforms:

  • Ubuntu 18.04 (Bionic)
  • Mac OS X 10.12 (Sierra)
  • Windows 10

Tier 2 platforms:

  • Ubuntu 16.04 (Xenial)

Changes since the Bouncy release

Changes since the Bouncy Bolson release:

Known Issues

  • Cross-vendor communication between rmw_fastrtps_cpp and other implementations is not functioning on Windows (Issue).
  • 100% CPU usage in Action Server when cancelling a goal from the client. (Issue).
  • Action Server can crash when a goal expires. (Pull Request).
  • Segfault in ros2 param get when a string parameter value contains non-ASCII characters. (Issue).
  • The latest version of OpenSplice on Windows is not compatible with the available binaries. (Issue).