Circularize is one of those most basic functions in SubD that we have been asking for since 2018 when SubD was first released in Rhino 7 WIP.
We have come a long way, very very slowly, like all things Rhino, but this basic tool still is not being addressed.
Here’s a few others in my list from 2019 that still today, over 7 years later still are not developed at all:
Number 2,3,4 in that list are still not here and are greatly missed for doing meaningful and efficient work in SubD.
But hey, number 1, 5, 7 are done!
So the glass is half full/empty depending on your expectations for 7 years of development.
G