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Add Humble release note about geometry2#442 (backport #2127) #2130

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Nov 18, 2021
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Add Humble release note about geometry2#442 (backport #2127) #2130

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11 changes: 11 additions & 0 deletions source/Releases/Release-Humble-Hawksbill.rst
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Expand Up @@ -321,6 +321,17 @@ The old-style arguments are still allowed in this release, but are deprecated an
They will be removed in future releases.
See https://github.com/ros2/geometry2/pull/392 for more details.

Transform listener spin thread no longer executes node callbacks
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

``tf2_ros::TransformListener`` no longer spins on the provided node object.
Instead, it creates a callback group to execute callbacks on the entities it creates internally.
This means if you have set the parameter ``spin_thread=true`` when creating a transform listener, you
can no longer depend on your own callbacks to be executed.
You must call a ``spin`` function on your node (e.g. ``rclcpp::spin``), or add your node to your own executor.

Related pull request: `geometry2#442 <https://github.com/ros2/geometry2/pull/442>`_

Known Issues
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