As some in this thread show -understandibly- little trust in the source of this news, here is a Bloomber news about.

[German] Chancellor Olaf Scholz’s governing coalition has agreed to double German military aid for Ukraine next year to €8 billion ($8.6 billion), people familiar with the matter said.

If approved by the parliament in Berlin where Scholz’s parties hold a majority, the boost would lift Germany’s defense spending beyond the 2% of gross domestic product target pledged by all North Atlantic Treaty Organization members, according to the people [... who asked not to be identified since the plan isn’t public yet. A Defense Ministry spokesperson declined to comment.]

So it needs the parliament's vote, but that's quite safe given the ruling coalition's majority.