diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6e4247dbd..9c7a3bb76 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Release History
 
+# 4.0.4 (2025-06-16)
+
+- Update thrift client library after cleaning up unused fields and structs (databricks/databricks-sql-python/pull/553 by @vikrantpuppala)
+- Refactor decimal conversion in PyArrow tables to use direct casting (databricks/databricks-sql-python/pull/544 by @jayantsing-db)
+- Fix: `fetchall_arrow` to always return results in `arrow` format (databricks/databricks-sql-python/pull/551 by @shivam2680)
+- Enhance cursor close handling and context manager exception management to prevent server side resource leaks (databricks/databricks-sql-python/pull/554 by @madhav-db)
+- Added additional logging to enhance debugging (databricks/databricks-sql-python/pull/556 by @saishreeeee)
+- Feature: Added support for complex data types such as Arrays and Map [Private Preview] (databricks/databricks-sql-python/pull/559 by @jprakash-db)
+
 # 4.0.3 (2025-04-22)
 
 - Fix: Removed `packaging` dependency in favour of default libraries, for `urllib3` version checks (databricks/databricks-sql-python#547 by @jprakash-db)
diff --git a/pyproject.toml b/pyproject.toml
index 7b95a5097..19edb7211 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "databricks-sql-connector"
-version = "4.0.3"
+version = "4.0.4"
 description = "Databricks SQL Connector for Python"
 authors = ["Databricks <databricks-sql-connector-maintainers@databricks.com>"]
 license = "Apache-2.0"
diff --git a/src/databricks/sql/__init__.py b/src/databricks/sql/__init__.py
index 08d8c1014..c930d746c 100644
--- a/src/databricks/sql/__init__.py
+++ b/src/databricks/sql/__init__.py
@@ -68,7 +68,7 @@ def __repr__(self):
 DATE = DBAPITypeObject("date")
 ROWID = DBAPITypeObject()
 
-__version__ = "4.0.3"
+__version__ = "4.0.4"
 USER_AGENT_NAME = "PyDatabricksSqlConnector"
 
 # These two functions are pyhive legacy