The article says that, but it's from Bild, one of the worst German news sites/papers. Can't really trust it. They're constantly lying or pushing their own POV or create drama for no reason.
Although I usually hesitate to click on Bild.de links, I've made an exception this time: The original plan was 4 billion €, now 8 billion € plus 2 billion € for general long term military aid.