In his introduction to Neviim Rishonim, Abarbanel uses the phrase “ad hayom hazeh” to disagree with Bava Basra 14/15 about who wrote the books of Neviim Rishonim.
The phrase “ad hayom hazeh” appears in Chumash too. Surely he’s not saying that later authors wrote the books of Chumash (see his comments to Bemidbar 21).
How does Abarbanel understand ad hayom hazeh in Chumash as opposed to Nach?
“ad hayom hazeh” in the Torah does’t always mean till this very day.
Yehoshua 15:63 Radak