And I’ve got it.
Glenn Berry posted a a link to the MSDN blog and almost immediately a note that the link was still the CTP. I decided to fire up my Ubuntu install and check. No updates there, though a few people reported Docker had the new bits.
A short while later, the Windows link was correct, and my Linux update worked.
I did re-register the repository
curl https://packages.microsoft.com/config/ubuntu/16.04/mssql-server.list | sudo tee /etc/apt/sources.list.d/mssql-server.list
And then the rest was the same as previous updates. Quick and easy, a few command line things to type and I was updated.
Now I need to get Docker working, since I’m betting we’ll see updates and changes there faster than anywhere else.