You do not have to pay to fly your drone within an airports FRZ you only have to get permission, however, some airports...

New firmware updates are now available for users of DJI TB50 and TB55 batteries to enhance the battery management...

The CAA have issued a safety notice on DJI TB50 and TB55 batteries which affects Inspire 2 & Matrice 200 Series...

The CAA has released a safety notice to all users of the DJI Matrice 200 to warn people of in-flight power failures.