Rule updates

[Kadigo]

I just checked varia on this site, under book updates and I saw that "The maximum speed (1/1/2017) The maximum speed on an ordinary road is in the region Walloon and Brussels-capital: 90 km/hour. In Flanders: 70 km/hour (since January 1, 2017). Except when traffic rules signs impose a different speed limit."

But I thought that the maximum speed on an ordinary road is the same in Brussels and Flanders (70km/hour) while in Wallonia it is 90km/hour. Why is the update saying otherwise for Brussels?

[GRO]

Flanders and Brussels region: 70 km/h.
Walloon region: 90 km/h.