Add CHANGELOG.md to document project updates and version history

Author: grongierisc

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [3.4.0] - 2025-02-10
+
+### Added
+- Support for production settings configuration and management
+- Enhanced Python logging integration with IRIS
+- Support for schema registration with PydanticMessage
+- Improved Pydantic integration for message validation
+- Logger property in _Common class for better logging management
+
+### Changed
+- Refactored _director and _utils modules
+- Enhanced serialization module
+  - Simplified type conversion
+  - Improved Pydantic integration
+  - Removed deprecated methods
+- Improved logging mechanism
+  - Encapsulated console logging behavior
+  - Enhanced logger initialization
+- Updated pytest configuration for asyncio
+
+### Fixed
+- Fixed log handling in Command class
+- Improved error handling in OnGetConnections method
+
+## [3.3.0] - 2025-01-25
+
+### Added
+- Support of Pydantic message validation and serialization
+- Enhanced Python logging integration with LogManager
+- New test framework with pytest-asyncio support
+- Improved error handling and validation
+
+### Changed
+- Refactored core components for better maintainability
+- Enhanced message serialization system
+- Improved production settings handling
+
+### Fixed
+- Various log handling issues
+- Message validation edge cases
+
+## [3.2.0] - 2025-01-15
+
+### Added
+- DTL (Data Transformation Layer) with JSON Schema support
+- Complex JSON transformation capabilities
+- Enhanced documentation for DTL features
+- JsonPath support for data manipulation
+- Comprehensive schema validation system
+
+### Changed
+- Improved message transformation handling
+- Enhanced error reporting for schema validation
+- Refactored transformation engine
+
+### Fixed
+- JSON Schema processing issues
+- Array handling in transformations
+- Various DTL edge cases
+
+## [3.1.0] - 2024-07-26
+
+### Added
+- Async function support in Business Processes and Operations
+- Multi-sync call capabilities
+- Enhanced trace logging options
+- New benchmarking tools
+- Improved session handling
+
+### Changed
+- Refactored business host dispatch system
+- Enhanced message serialization
+- Improved async request handling
+
+### Fixed
+- Retro-compatibility with grongier.pex
+- Session management issues
+- Various async operation bugs
+
+## [3.0.0] - 2024-07-08
+
+### Changed
+- Renamed package from grongier.pex to iop
+- Major refactoring of core components
+- Improved package structure
+- Enhanced documentation
+
+### Added
+- New installation methods
+- Better package management
+- Improved error handling
+
+## [2.3.24] - 2024-03-08
+
+### Added
+- Dev mode support for WSGI applications
+- Experimental iris module features
+  - Sugar syntax for common operations
+  - Enhanced intellisense support
+- Improved WSGI configuration options
+
+### Fixed
+- PyPI version synchronization
+- WSGI handling issues
+- Device redirection in WSGI
+
+## [2.3.20] - 2023-12-13
+
+### Fixed
+- Fix upgrade version issues
+
+## [2.3.19] - 2023-12-12
+
+### Added
+- Support for OnGetConnections and on_get_connections to show connections between components in interoperability UI
+
+## [2.3.18] - 2023-12-11
+
+### Fixed
+- Named argument not serialized for send_request_sync and send_request_async
+
+## [2.3.17] - 2023-11-24
+
+### Added
+- Support relative path for migration
+
+## [2.3.16] - 2023-10-30
+
+### Added
+- Support of Japanese characters
+- New command line options
+  - Logs number of line
+  - Start production async
+
+## [2.3.12] - 2023-10-04
+
+### Added
+- New command line option test
+
+### Changed
+- Refactored some code
+
+### Fixed
+- Various minor fixes
+
+## [2.3.8] - 2023-07-13
+
+### Fixed
+- iop --init command
+- cls compilation with zpm
+
+## [2.3.7] - 2023-07-07
+
+### Fixed
+- Source dir and package for zpm
+
+## [2.3.6] - 2023-07-07
+
+### Fixed
+- ZPM installation
+
+## [2.3.5] - 2023-07-05
+
+### Added
+- Initial WSGI support
+- Settings.py support
+
+### Changed
+- Aligned version with pypi
+
+## [2.3.0] - 2023-05-31
+
+### Added
+- Command line support
+- Settings.py files support
+
+## [2.2.0] - 2023-05-19
+
+### Added
+- Manager support for production management
+  - Settings.py class support for component and production configuration
+  - Director support for production control and logging
+
+## [2.1.0] - 2023-04-21
+
+### Added
+- Support for Python 3.6 (RedHat 8.x)
+- Deployment with PyPi
+
+### Fixed
+- Files and folders named with "_"
+- Stronger check on Message
+
+## [2.0.0] - 2023-03-15
+
+### Added
+- Iop command line