During our testing for v21.09 (we decided to call it v21.09 not v21.08), we found few issues that were blocking the release. It leads us to shift our timelines by few weeks. We recently released the RC-2 tag for v21.09. We are constantly working on making this release stable and we will release across the board soon.
As for the feature, I can’t commit any timeline for this. I am adding this into my to do list and will try to come up with something concrete soon.