It seems previous notes (by use of NNAs) are still effected by volume and panning changes in v1.2. However, with subtracks now also containing volume and panning fields, you can go around this by using the subtracks instead.
For example, if you had a crash cymbal set to continue, and you played one at position 00 at volume 40, and another at position 04 at volume 10, you’ll notice the continue NNA of the old sample drops to volume 10 as well. As far as I know, no other tracker did this. But by using subtracks in Renoise you can overcome this.
Just quick tip I thought I should post here.