Cherry-pick of 95cb964 has failed:

On branch mergify/bp/humble/pr-2986
Your branch is up to date with 'origin/humble'.

You are currently cherry-picking commit 95cb964.
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Changes to be committed:
	modified:   rclcpp/src/rclcpp/signal_handler.cpp

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   rclcpp/src/rclcpp/signal_handler.hpp

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

Pulls: #2997, ros2/system_tests#579
Gist: https://gist.githubusercontent.com/fujitatomoya/4156c614cc97df073544dde75d126a05/raw/0de0fe940cfc63ec74505be2877d58f0c3796c6f/ros2.repos
BUILD args: --packages-above-and-dependencies ‎rclcll test_rclcpp
TEST args: --packages-above ‎rclcll test_rclcpp
ROS Distro: humble
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/17563

• Linux
• Linux-aarch64
• Linux-rhel
• Windows

Pulls: #2997, ros2/system_tests#579
Gist: https://gist.githubusercontent.com/fujitatomoya/10856f381df425ff08b16b76b0544520/raw/0de0fe940cfc63ec74505be2877d58f0c3796c6f/ros2.repos
BUILD args: --packages-above-and-dependencies rclcpp test_rclcpp
TEST args: --packages-above rclcpp test_rclcpp
ROS Distro: humble
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/17566

• Linux
• Linux-aarch64
• Linux-rhel
• Windows

API/ABI break

@jmachowinski thank you so much 👍 what was i thinking ... 😓 This is an ABI break. Any binaries built against the old version must be recompiled, i will close all backports.

This is ABI breaking change, closing.