Pilot Plus has released an update for their Bristol Definitive scenery, for X-Plane 11, to version 1.1. On their website, they detail the changes.
The update includes only a few changes, but all three of relative significance: an overhauled installer, further airside clutter, and a red beacon to the airport lighting.
They inform us that customers are able to update to the latest version by downloading it through their account on the Pilot Plus web store, and it will be made available through the X-Plane.org store in the upcoming days.
There were a few screenshots provided also.