diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0eee0502bb..d4f739e1f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,19 @@
 
 ## Unreleased
 
-- Add Chocolately package support. (#724)
+## v0.39.0
+
+This Splunk OpenTelemetry Collector release includes changes from the [opentelemetry-collector v0.39.0](https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.39.0) and the [opentelemetry-collector-contrib v0.39.0](https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.39.0) releases.
+
+### 💡 Enhancements 💡
+
+- Initial [Chocolatey package](https://github.com/signalfx/splunk-otel-collector/blob/main/docs/getting-started/windows-manual.md#chocolatey-installation) release
+- Update bundled Smart Agent to [v5.16.0](https://github.com/signalfx/signalfx-agent/releases/tag/v5.16.0)
+
+### 🧰 Bug fixes 🧰
+
+- Fix token passthrough for splunkhec receiver/exporter ([#5435](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/5435))
+- Fix --set command line flag functionality (#939)
 
 ## v0.38.1