When the program announcement change was published, I went into my SkyBonus account and clicked whatever it was to approve being part of the new program. It was so long ago now I don't remember the details, but I feel like it was just some T&C for the new program. I got this notice in late September:


SkyBonus transition email

and in mid-October I started logging into the https://skymilesforbusiness.delta.com/ site, using my Delta SkyMiles account instead of my SkyBonus login (which had been different logins for me). The existing points were accurately converted at the 3:1 ratio to miles, and while I haven't gotten a new ticket to post there as of yet I have tried redeeming miles and that worked. When I log in to my personal SkyMiles account at Delta, I get this dialog to determine if I'm booking Personal or Business, and then the new manage options under the Business menu:


Delta SkyMiles login profile picker

When I tested distributing miles to individual SkyMiles accounts, it posted nearly immediately, and in the individual SkyMiles account shows the deposit like this:


SkyMiles transfer deposit from SkyMiles for Business

Aside from the newly booked tickets not being added, and the pretty limited visibility/functionality on the new site (including missing the add-a-ticket function) I haven't had any issues. I'm a pretty light user of the program overall, so others that have more volume or complex situations may have other concerns or issues that surface for their situation.