diff --git a/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md b/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md
index e673dbfb822..fa76f44a318 100644
--- a/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0-alpha.2
+
+Released 2024-May-29
+
 * Fixed issue with OpenMetrics suffixes for Prometheus
   ([#5646](https://github.com/open-telemetry/opentelemetry-dotnet/pull/5646))
 
diff --git a/src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md b/src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md
index 717e61290b8..07ac849c6d7 100644
--- a/src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0-alpha.2
+
+Released 2024-May-29
+
 * Fixed issue with OpenMetrics suffixes for Prometheus
   ([#5646](https://github.com/open-telemetry/opentelemetry-dotnet/pull/5646))
 
diff --git a/src/OpenTelemetry.Shims.OpenTracing/CHANGELOG.md b/src/OpenTelemetry.Shims.OpenTracing/CHANGELOG.md
index b0cb58b6b50..1dbb969e79c 100644
--- a/src/OpenTelemetry.Shims.OpenTracing/CHANGELOG.md
+++ b/src/OpenTelemetry.Shims.OpenTracing/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0-alpha.2
+
+Released 2024-May-29
+
 ## 1.9.0-alpha.1
 
 Released 2024-May-20