In 2010, the Netherlands Antilles was dissolved meaning that Curaçao and Sint-Maarten became "constituent countries" under the Dutch Crown with their own parliaments and governments. Bonaire, St. Eustastius and Saba became "special municipalities" of the Netherlands, in other words fully integrated where Dutch law and policies fully applies much like an "outlying" version of state of the US or Australia or province of Canada. The three islands use the US Dollar rather than the Euro or the Netherlands Antilles Guilder.
However, not everyone is happy with this arrangement. It would seem logical that the three islands be given the same status as Curaçao, Sint-Maarten and Aruba have. After all, Britain did not integrate territories into the United Kingdom like that, while France has sort of done so with its territories.