The 20.04.6 symlink exists because there are 20.04.6 source ISOs under <https://cdimage.ubuntu.com/releases/20.04.6/release/source/>.
But we have taken the decision that we will no longer produce source ISOs.
So I think what we want to do here is to delete those source ISOs, and delete the 20.04.6 symlink.
None of the actual install images in that directory will ever have a 20.04.6 release.
The 20.04.6 symlink exists because there are 20.04.6 source ISOs under <https:/ /cdimage. ubuntu. com/releases/ 20.04.6/ release/ source/>.
But we have taken the decision that we will no longer produce source ISOs.
So I think what we want to do here is to delete those source ISOs, and delete the 20.04.6 symlink.
None of the actual install images in that directory will ever have a 20.04.6 release.