The latest update to X-Plane has now be released for all customers! X-Plane 11.40 is a major update with changes to the experimental flight model, including seaplane handling, stalling, and prop wash improvements. You will need to check the experimental flight model box in the General Settings tab to experience these changes.
This update also includes the latest recommended Gateway airport submissions. This adds brand new 3D scenery for over 1400 airports, as well as nearly 500 airports that never existed in X-Plane before.
View the complete release notes here for the full list of improvements, fixes, and updated airports.