good transition between old and new world regeneration

I would like the transition between the old and the new world regeneration to be done with single blocks instead of full chunks. I have a world that I have been updating every time since 1.6. So when there's new regeneration, it creates transitions. VB: at 1.13 (aquatic update) there was an angular separation across my seabed consisting of full chunks that I had to improve myself. At 1.16 (nether update) the transition between my old and new nether is barely visible, because there it happened with single blocks and thus resembles a normal biotope transition. So I plan to use the new caves and cliffs update on that same world as well. So please make sure the transition between 1.16 and 1.17 world regeneration will be roughly the same (which it may already be, because new terrain used to load with whole chunks and now with single blocks. but I'm just sending this so you guys know; ) ). Good luck with finishing the caves and cliffs update and see you soon!!!