This upgrade is needed in order to support
reading and editing project files that use Sdks
as well as other new features. A common example
in 3.2 is having to specify a PackageReference
version with a child element rather than the
attribute. This is no longer the case now.
Partial cherry-pick of f3bcd5f8dd
Most of the other changes from that commit were already partially
cherry-picked in 3928fe200f.
