Have to download a new image every time there's an update?

I just got a notice that there’s a new image for DietPi. However, when I run dietpi-update I get the notice in the screenshot attached.
I’m curious to know if I’ll have to download a new image each time there’s an update to DietPi.

Apologies if this is a silly question as I’m pretty new to DietPi.

Hi Jasjeev4,

Not a silly question, completely understand your query.

Unfortunately, sometimes there are too many core changes to DietPi, and, they cant be updated as a online patch. Hence this will require a new image.
The old version will still function and you are not required to update unless you wish to.