Do you notice any improvements with this update?

Not sure, haven't tried it today.

Last night it single handedly implemented a feature after a grilling session, and came back with the red-yellow-green risk assessment points that I mostly saw with anthropic models. I had to check if I'm using the right model, but it was DS4Flash.

So maybe I was using it already?

Possibly depending on who's routing it, since Openrouter seems to have added a separate slug for this, and they don't have an alias router for the DS models yet, so it shouldn't have swapped over to it in case you use them for routing.

If you are directly using it through Deepseek, they do mention that the flash slug has migrated over