Prepare for v3.16.0 release
CHANGELOG
=========
+## 3.16.0 (2021-10-20)
+
+### Improvements
+
+- [codegen/dotnet] - Add helper function forms `$fn.Invoke` that
+ accept `Input`s, return an `Output`, and wrap the underlying
+ `$fn.InvokeAsync` call. This change addreses
+ [#5758](https://github.com/pulumi/pulumi/issues/) for .NET, making
+ it easier to compose functions/datasources with Pulumi resources.
+ NOTE for resource providers: the generated code requires Pulumi .NET
+ SDK 3.15 or higher.
+
+ [#7899](https://github.com/pulumi/pulumi/pull/7899)
+
+- [auto/dotnet] - Add `pulumi state delete` and `pulumi state unprotect` functionality
+ [#8202](https://github.com/pulumi/pulumi/pull/8202)
+
+
## 3.15.0 (2021-10-14)
### Improvements
