Southwest’s tech debt hurt it back in 2022 but it seems to be doing it some favors today.
Old Windows taketh away, but sometimes old Windows giveth.
https://www.digitaltrends.com/computing/southwest-cloudstrike-windows-3-1/
EDIT: Fix date
EDIT: @peterbutler pushed me to do a little more research, and I’m more comfortable saying it the underlying software probably dates to Windows NT or XP.