In October 2015 Luxembourg dissolved their 3 districts which Project-GC used as regions. Source,
https://en.wikipedia.org/wiki/Administrative_divisions_of_Luxembourg
Project-GC has now removed them as well. With that, we have moved our old counties to being regions, and added the next admin level as counties instead.
Number of regions has now changed from 3 to 12. Counties has changed from 12 to 105.