@rysiek better late than never indeed. And yes, this is quite the change. For, ahem, reasons, the secure existence of the state of Israel is one of the basically untouchable positions of ALL german governments since founding of the federal republic.
I can only hope that this doesn't mean that we're backtracking in general to, ahem, previous times.
(German right-wing parties have a complicated relationship with the whole issue. Which means in effect, that they can milk any outcome for their benefit: Israel wins? Shows that strongman tactics against these evil leftist terrorists were the right choice. Palestinians suffer? Shows that all prejudices against "the jews" were right after all. Palestinians gaining support - of course they deserve that, again, "the jews"!
So the whole topic is a very complicated and dangerous political minefield here in Germany, and it is truly a miracle that Merz has moved that far at all.
(Keep in mind that during the last election, Merz said he'd invite Netanyahu to Germany with assurances of safe passage, despite there being an arrest order from Den Haag that Germany is kinda required to follow)