diff --git a/sdk/core/azure-core/CHANGELOG.md b/sdk/core/azure-core/CHANGELOG.md
index d7a4b9038695..c6bf7febc96c 100644
--- a/sdk/core/azure-core/CHANGELOG.md
+++ b/sdk/core/azure-core/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## 1.12.0 (2021-03-08)
 
+This version will be the last version to officially support Python 3.5, future versions will require Python 2.7 or Python 3.6+.
+
 ### Features
 
 - Added `azure.core.messaging.CloudEvent` model that follows the cloud event spec.