diff --git a/src/OpenTelemetry.Resources.OperatingSystem/CHANGELOG.md b/src/OpenTelemetry.Resources.OperatingSystem/CHANGELOG.md
index 940f68332a..c009449b27 100644
--- a/src/OpenTelemetry.Resources.OperatingSystem/CHANGELOG.md
+++ b/src/OpenTelemetry.Resources.OperatingSystem/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 0.1.0-alpha.1
+
+Released 2024-Jul-11
+
 * Initial release of
   `OpenTelemetry.ResourceDetectors.OperatingSystem`
   project.