Why SpaceX Crew-11 is coming home early

To quickly recap for those not in the know: on Jan. 7, a medical situation occurred with one of the Crew-11 crew members that required an early end to the Crew-11 mission. The medical concern wasn't urgent enough to require an emergency evacuation, but did necessitate an earlier than expected departure.

Due to medical privacy reasons, no details about the medical situation was released, including who was affected and with what, other than it was not from the operational environment (incl. EVA prep).

This medical concern meant that both of the upcoming spacewalks - involving prep work for installing a new solar panel and replacing some hardware - have been postponed. This likely means Crew-12 will have to perform these spacewalks instead.