Cirrus Aircraft announced that pilot might "never fly single pilot again" with two new features for Perspective-equipped aircraft where the autopilot system can act of its own accord. The Hypoxia Recognition and Recovery system listens to the com radio whenever the pilot is above 15,000 feet. A long period without you talking on the radio will trigger an alert. If you don't respond, the plane will descend on its own to 14,000 feet while continuing to try and alert the pilot. If the pilot still doesn't cancel the alert the plane can The autopilot can also step in if you're flying too slow or potentially losing control of the aircraft.
This is a companion discussion topic for the original entry at https://www.avweb.com/air-shows-events/cirrus-adds-hypoxia-recognition