* `raw` now returns `changed: true` to be consistent with shell/command/script modules. Add `changed_when: false` to `raw` tasks to restore the pre-2.2 behavior if necessary.
* New privilege escalation become method `ksu`
* Windows `async:` support for long-running or background tasks.
* Windows `async:` support for long-running or backgrodund tasks.
* Windows `environment:` support for setting module environment vars in play/task.