diff --git a/.changes/unreleased/Bug Fixes-318.yaml b/.changes/unreleased/Bug Fixes-318.yaml
deleted file mode 100644
index 6b8f8bcf..00000000
--- a/.changes/unreleased/Bug Fixes-318.yaml	
+++ /dev/null
@@ -1,6 +0,0 @@
-component: sdk
-kind: Bug Fixes
-body: Fix binary compatibility with provider SDKs built using older version of the core SDK
-time: 2024-08-09T19:05:20.54029+02:00
-custom:
-    PR: "318"
diff --git a/.changes/v3.66.1.md b/.changes/v3.66.1.md
new file mode 100644
index 00000000..bdeb4d29
--- /dev/null
+++ b/.changes/v3.66.1.md
@@ -0,0 +1,6 @@
+## v3.66.1 - 2024-08-09
+
+### Bug Fixes
+
+- [sdk] Fix binary compatibility with provider SDKs built using older version of the core SDK [#318](https://github.com/pulumi/pulumi-dotnet/pull/318)
+
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a716e53..18709e04 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html),
 and is generated by [Changie](https://github.com/miniscruff/changie).
 
+## v3.66.1 - 2024-08-09
+
+### Bug Fixes
+
+- [sdk] Fix binary compatibility with provider SDKs built using older version of the core SDK [#318](https://github.com/pulumi/pulumi-dotnet/pull/318)
+
 ## v3.66.0 - 2024-08-09
 
 ### Improvements