diff --git a/RELEASE.md b/RELEASE.md
index 467d9644d..3d463180a 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -1,9 +1,13 @@
-# Current version (not yet released; still in development)
+# Release 0.15.2
 
 ## Major Features and Improvements
 
 ## Bug Fixes and Other Changes
 
+*   Passes bytes instead of string to grpc.ssl_channel_credentials.
+*   Align GRPC python client stub error code with swig client error code.
+*   Add verify_server_cert support to MySQL source SSL options.
+
 ## Breaking Changes
 
 ## Deprecations
diff --git a/g3doc/get_started.md b/g3doc/get_started.md
index 529a3f46d..ce0e11dca 100644
--- a/g3doc/get_started.md
+++ b/g3doc/get_started.md
@@ -392,6 +392,6 @@ The list of `schema_version` used in MLMD releases are:
 
 ml-metadata (MLMD) | schema_version
 ------------------ | --------------
-0.15.1             | 4
+0.15.2             | 4
 0.14.0             | 4
 0.13.2             | 0
diff --git a/ml_metadata/version.py b/ml_metadata/version.py
index 6ad581fc1..352eb348a 100644
--- a/ml_metadata/version.py
+++ b/ml_metadata/version.py
@@ -15,4 +15,4 @@
 """Contains the version string of ML Metadata."""
 
 # Note that setup.py uses this version.
-__version__ = '0.16.0dev'
+__version__ = '0.15.2'