X-Plane 10.42 is a bug-fix patch to X-Plane 10.41. It fixes the following bugs:
- X-Plane can run for a few days if the authorization server is unreachable. The product key check will try to auto-renew in the background when you boot the sim.
 - Analytics track and log problems with the authorization server, so we can monitor quality of the digital download system.
 - Loading an aircraft from the IOS returns to the IOS (bug 4901).
 - Fixed bug where analytics info could be sent even if user preference was to not send analytics.
 - Crashes on OS X are once again attributed to X-Plane or third party plugins.