ansible/changelogs/fragments/74953-implement-async-callbacks.yml

minor_changes:
    - callback API - implemented ``v2_runner_on_async_ok`` and ``v2_runner_on_async_failed`` callbacks
      (https://github.com/ansible/ansible/pull/74953).
    - default callback plugin - displays output for ``v2_runner_on_async_ok`` and ``v2_runner_on_async_failed`` callbacks.