Version 4.5.680-Beta is now available via NuGet.
A list of changes is here:
https://github.com/MarimerLLC/csla/issues?q=is%3Aissue+milestone%3A4.5.700+is%3Aclosed
This release adds support for the new Xamarin universal runtime and project types. It also includes some other bug fixes and minor enhancements.