I had reported a couple issues in thread:
I was told that the inability for a webdav user to be added by resellers would be fixed in this release, however I still do not see the ability for resellers to add webdav users.
Also, I had logged a bug for resellers not being able to add secondary DNS zones. They can sort of add them now, however there is no dns server selection drop down, so you cannot add a secondary dns zone.
These are both features I really would like to have working, but neither is working still after the upgrade. Please let me know if you need any more information or details.