diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb1e12e3..e4010dc6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+# v0.66.0 - 2024-09-25
+
+- [IMPROVEMENT] Test metrics validity when testing Exporter #526
+- [IMPROVEMENT] Shard: Add support for Authorization header #518
+- [BUGFIX] Fix promql-query Vue component rendering #516
+- [INTERNAL] Upgrade Celery #514
+- [INTERNAL] Django upgrade fixes #515
+- [INTERNAL] Update dependencies #513
+- [INTERNAL] Update mysql settings in docker-compose #509
+
 # v0.65.0 - 2024-05-16
 
 - [BUGFIX] Fix testing Rule query before saving #510
diff --git a/pyproject.toml b/pyproject.toml
index 04f3bc17..1bb1916f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "promgen"
-version = "0.66.0.dev"
+version = "0.66.0"
 authors = [{ name = "LINE Corporation", email = "dl_oss_dev@linecorp.com" }]
 classifiers = [
     "Environment :: Web Environment",