outline implications of the kernel.terminate event
feature #4224 [Components][HttpKernel] outline implications of the kernel.terminate event (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
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[Components][HttpKernel] outline implications of the kernel.terminate event

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets | #4198

Commits
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c4f4588 outline implications of the kernel.terminate event