Prepare for v3.19.0
CHANGELOG
=========
+## 3.19.0 (2021-12-01)
+
+### Improvements
+
+- [codegen/go] - Remove `ResourcePtr` types from generated SDKs. Besides being
+ unnecessary--`Resource` types already accommodate `nil` to indicate the lack of
+ a value--the implementation of `Ptr` types for resources was incorrect, making
+ these types virtually unusable in practice.
+ [#8449](https://github.com/pulumi/pulumi/pull/8449)
+
+- [cli] - Allow interpolating plugin custom server URLs.
+ [#8507](https://github.com/pulumi/pulumi/pull/8507)
+
+### Bug Fixes
+
+- [cli/engine] - Accurately computes the fields changed when diffing with unhelpful providers. This
+ allows the `replaceOnChanges` feature to be respected for all providers.
+ [#8488](https://github.com/pulumi/pulumi/pull/8488)
+
+- [codegen/go] - Respect default values in Pulumi object types.
+ [#8411](https://github.com/pulumi/pulumi/pull/8400)
+
## 3.18.1 (2021-11-22)
### Improvements
