Update CHANGELOG.md to consolidate bug fixes under v0.4.1

Author: Bob Strahan

CHANGELOG.md

@@ -5,21 +5,6 @@ SPDX-License-Identifier: MIT-0
 
 ## [Unreleased]
 
-
-### Fixed
-
-- **IDP CLI Deploy Command Parameter Preservation Bug**
-  - Fixed critical bug where `idp-cli deploy` command was resetting ALL stack parameters to their default values during updates, even when users only intended to change specific parameters
-  - **Root Cause**: The `build_parameters()` function was using default values for all parameters (e.g., `max_concurrent=100`, `log_level="INFO"`, `enable_hitl="false"`), causing these defaults to be sent to CloudFormation even when users didn't explicitly provide them
-  - **Solution**: Refactored `build_parameters()` to only include explicitly provided parameters, allowing CloudFormation to automatically preserve existing values for parameters not specified in the update command
-  - **Benefits**: Users can now safely update individual stack parameters without accidentally resetting other parameters to defaults, significantly reducing the risk of unintended stack configuration changes
-  - **Implementation Details**:
-    - Changed all `build_parameters()` function parameters to `Optional` with `None` defaults
-    - Added conditional parameter inclusion - only adds parameter to dictionary if value is not `None`
-    - Updated CLI to convert Click's default values to `None` when detecting they haven't been explicitly changed by the user
-    - Removed unnecessary existing parameter retrieval code that attempted to fill in pattern/admin_email from existing stack
-  - **Testing**: Added comprehensive test suite with 15 test cases covering new stack creation, empty updates, selective updates, and parameter preservation scenarios
-
 ## [0.4.1]
 
 ### Changed
@@ -35,7 +20,10 @@ SPDX-License-Identifier: MIT-0
 - **Re-enabled Regex Functionality** - Restored document name and page content regex functionality for Pattern-2 classification that was temporarily missing
 - **Pattern-2 ECR Enhanced Scanning Support** - Added required IAM permissions (inspector2:ListCoverage, inspector2:ListFindings) to Pattern2DockerBuildRole to support AWS accounts with Amazon Inspector Enhanced Scanning enabled. Also added KMS permissions (kms:Decrypt, kms:CreateGrant) for customer-managed encryption keys. This resolves AccessDenied errors and CodeBuild timeouts when deploying Pattern-2 in accounts with enhanced scanning enabled.
 - **Reporting Database Data Loss After Evaluation Refactoring - Fixes #121**
-  - Fixed critical bug where metering data and document_section data stopped being written to the reporting database after evaluation was migrated from EventBridge to Step Functions workflow
+  - Fixed bug where metering data and document_section data stopped being written to the reporting database after evaluation was migrated from EventBridge to Step Functions workflow
+- **IDP CLI Deploy Command Parameter Preservation Bug**
+  - Fixed bug where `idp-cli deploy` command was resetting ALL stack parameters to their default values during updates, even when users only intended to change specific parameters
+
 
 ## [0.4.0]