diff --git a/sdk/keyvault/azure-keyvault-certificates/HISTORY.md b/sdk/keyvault/azure-keyvault-certificates/HISTORY.md
index a706f9774c09..09161e2a6d53 100644
--- a/sdk/keyvault/azure-keyvault-certificates/HISTORY.md
+++ b/sdk/keyvault/azure-keyvault-certificates/HISTORY.md
@@ -1,5 +1,34 @@
 # Release History
 
-## 4.0.0b1 (2019-06-28)
-For release notes and more information please visit
-https://aka.ms/azure-sdk-preview1-python
+## 4.0.0b3 (2019-09-10)
+Version 4.0.0b3 is the first preview of our efforts to create a user-friendly and Pythonic client library for Azure Key Vault.
+For more information about preview releases of other Azure SDK libraries, please visit https://aka.ms/azure-sdk-preview1-python.
+
+ This library is not a direct replacement for `azure-keyvault`. Applications
+using that library would require code changes to use `azure-keyvault-certificates`.
+This package's
+[documentation](https://github.com/Azure/azure-sdk-for-python/tree/master/sdk/keyvault/azure-keyvault-certificates/README.md)
+and
+[samples](https://github.com/Azure/azure-sdk-for-python/tree/master/sdk/keyvault/azure-keyvault-certificates/samples)
+demonstrate the new API.
+
+### Breaking changes from `azure-keyvault`:
+- Packages scoped by functionality
+    - `azure-keyvault-certificates` contains a client for certificate operations
+- Client instances are scoped to vaults (an instance interacts with one vault
+only)
+- Authentication using `azure-identity` credentials
+  - see this package's
+  [documentation](https://github.com/Azure/azure-sdk-for-python/tree/master/sdk/keyvault/azure-keyvault-keys/README.md)
+  , and the
+  [Azure Identity documentation](https://github.com/Azure/azure-sdk-for-python/blob/master/sdk/identity/azure-identity/README.md)
+  for more information
+
+### New Features:
+- Distributed tracing framework OpenCensus is now supported
+- Asynchronous API supported on Python 3.5.3+
+    - the `azure.keyvault.certificates.aio` namespace contains an async equivalent of
+    the synchronous client in `azure.keyvault.certificates`
+    - Async clients use [aiohttp](https://pypi.org/project/aiohttp/) for transport
+    by default. See [azure-core documentation](https://github.com/Azure/azure-sdk-for-python/blob/master/sdk/core/azure-core/README.md/#transport)
+    for more information about using other transports.