X-Plane will prompt you to update the next time you run, and automatically download the latest installer. If you choose to update manually, please make sure you are using the latest installer, which also includes bug fixes.
X-Plane 11.00pb2 has numerous bug fixes and improvements to joystick configuration, as well as fixes to GPS/FMS end of route crashes. See the updated release notes article for a full list of improvements and bug fixes. You can also learn more about specific fixes in this developer post.