Hi,
the currently published nuget package seems to be not up to date. I've read in an earlier issue that the package gets deployed automatically after a successful build. As the build is currently failing, this might be the reason there is no current nuget package.
The error from AppVeyor seems to be the following one:
Error creating GitHub release: Provider setting not found or it's value is empty. If secure setting is used please check that value was encrypted (or YAML was exported) while being logged under correct account.
Parameter name: auth_token
It would be great if we can fix the build again.