I recently updated price and anchorage concession information for:
Interesting is, that some time ago the concession boundaries were modified: The image below shows Velika Stupica, with the old areas (until 2021) in black overlayed with the new areas (from 2022) in red:
Also, see Mala Stupica, old boundaries versus new boundaries:
Let's call this: Fine-tuning in the direction of "bigger area, more buoys, greater income"...