I have been in contact with various FORD reps on the site and can report the following.
SYNC 4.4 had been pulled from the update site. Hopefully that means the new update will be available soon.
Contrary to what you may think the new update will be SYNC 4.6. What happened to SYNC 4.5? SYNC 4.5 is a factory only installation that is not and will not be available to dealers or placed on the site.
I wonder what issues SYNC 4.6 will have solved and what new issues it will contain. I hope they put all of the previously removed features back into the package that they had removed in earlier versions.
Hopefully they get done with SYNC 4.6 soon (that means within the next two weeks nit sometime in the next 6 months) and post it for all to download, install, and test.