diff --git a/.github/ISSUE_TEMPLATE/custom.md b/.github/ISSUE_TEMPLATE/custom.md
index 48d5f81..b894315 100644
--- a/.github/ISSUE_TEMPLATE/custom.md
+++ b/.github/ISSUE_TEMPLATE/custom.md
@@ -6,5 +6,3 @@ labels: ''
 assignees: ''
 
 ---
-
-
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e987c4d..feedb2e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-## [0.1.0] - 2025-01-XX
+## [0.1.0] - 2025-07-16
 
 ### Added
 - Initial release of Bedrock AgentCore Python SDK
@@ -21,3 +21,27 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - TLS 1.2+ enforcement for all communications
 - AWS SigV4 signing for API authentication
 - Secure credential handling via AWS credential chain
+
+## [0.1.1] - 2025-07-23
+
+### Fixed
+- **Identity OAuth2 parameter name** - Fixed incorrect parameter name in GetResourceOauth2Token
+  - Changed `callBackUrl` to `resourceOauth2ReturnUrl` for correct API compatibility
+  - Ensures proper OAuth2 token retrieval for identity authentication flows
+
+- **Memory client region detection** - Improved region handling in MemoryClient initialization
+  - Now follows standard AWS SDK region detection precedence
+  - Uses explicit `region_name` parameter when provided
+  - Falls back to `boto3.Session().region_name` if not specified
+  - Defaults to 'us-west-2' only as last resort
+
+- **JSON response double wrapping** - Fixed duplicate JSONResponse wrapping issue
+  - Resolved issue when semaphore acquired limit is reached
+  - Prevents malformed responses in high-concurrency scenarios
+
+### Improved
+- **JSON serialization consistency** - Enhanced serialization for streaming and non-streaming responses
+  - Added new `_safe_serialize_to_json_string` method with progressive fallbacks
+  - Handles datetime, Decimal, sets, and Unicode characters consistently
+  - Ensures both streaming (SSE) and regular responses use identical serialization logic
+  - Improved error handling for non-serializable objects
diff --git a/pyproject.toml b/pyproject.toml
index 9fd7301..ddb72bb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "bedrock-agentcore"
-version = "0.1.0"
+version = "0.1.1"
 description = "An SDK for using Bedrock AgentCore"
 readme = "README.md"
 requires-python = ">=3.10"
diff --git a/src/bedrock_agentcore/memory/client.py b/src/bedrock_agentcore/memory/client.py
index cc3d744..f1d7352 100644
--- a/src/bedrock_agentcore/memory/client.py
+++ b/src/bedrock_agentcore/memory/client.py
@@ -40,7 +40,7 @@ class MemoryClient:
 
     def __init__(self, region_name: Optional[str] = None):
         """Initialize the Memory client."""
-        self.region_name = boto3.Session().region_name or region_name or "us-west-2"
+        self.region_name = region_name or boto3.Session().region_name or "us-west-2"
 
         self.gmcp_client = boto3.client("bedrock-agentcore-control", region_name=self.region_name)
         self.gmdp_client = boto3.client("bedrock-agentcore", region_name=self.region_name)
diff --git a/tests/bedrock_agentcore/memory/test_client.py b/tests/bedrock_agentcore/memory/test_client.py
index 04687a2..810f5c9 100644
--- a/tests/bedrock_agentcore/memory/test_client.py
+++ b/tests/bedrock_agentcore/memory/test_client.py
@@ -44,7 +44,7 @@ def test_client_initialization_region_mismatch():
 
             # When region_name is provided, environment variable should still take precedence
             client1 = MemoryClient(region_name="us-west-2")
-            assert client1.region_name == "us-east-1"  # Environment wins over explicit param
+            assert client1.region_name == "us-west-2"
 
         # Second test - no environment variable, explicit param is used
         with patch("boto3.Session") as mock_session:
diff --git a/uv.lock b/uv.lock
index c8f9c3f..d6f8ee2 100644
--- a/uv.lock
+++ b/uv.lock
@@ -37,7 +37,7 @@ wheels = [
 
 [[package]]
 name = "bedrock-agentcore"
-version = "0.1.0"
+version = "0.1.1"
 source = { editable = "." }
 dependencies = [
     { name = "boto3" },