The first patch release for Dashing is scheduled for next Friday (2019-06-14). Instead of a tracking issue (which we did with Crystal), we are using a GitHub project board. As usual, this patch release will include a full sync, so any new packages since the initial Dashing release will also be included.
If you’d like to request a patch to the ROS 2 core be backported to Dashing, please tag @ros2/team on the relevant GitHub issue or pull request. We’ll consider these requests on a case-by-case basis.
I’ll update this thread when the release is out.