diff --git a/sdk/translation/azure-ai-translation-document/CHANGELOG.md b/sdk/translation/azure-ai-translation-document/CHANGELOG.md
index 332564950c28..c23c8b80898a 100644
--- a/sdk/translation/azure-ai-translation-document/CHANGELOG.md
+++ b/sdk/translation/azure-ai-translation-document/CHANGELOG.md
@@ -1,3 +1,6 @@
 # Release History
 
-## 1.0.0b1 (Unreleased)
+## 1.0.0b1 (2021-04-06)
+
+This is the first beta package of the azure-ai-translation-document client library that targets the Document Translation 
+service version `1.0-preview.1`. This package's documentation and samples demonstrate the new API.
\ No newline at end of file