alchemiststudiosDOTai · tunahorse · Sep 11, 2025 · Sep 11, 2025 · Sep 11, 2025 · Sep 11, 2025
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -5,6 +5,54 @@ 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).
 
+## [0.0.72] - 2025-09-11
+
+### Summary
+This release includes a major architectural improvement with enum-based state machine implementation, enhanced system prompt updates, and improved tool validation configuration.
+
+### Added
+- **Enum-Based State Machine for Agent Completion Detection**
+  - Implemented AgentState enum with 4 states: USER_INPUT, ASSISTANT, TOOL_EXECUTION, RESPONSE
+  - Created AgentStateMachine with thread-safe state transition validation
+  - Added state transition rules to prevent invalid state changes
+  - Enhanced completion detection logic to eliminate premature completion issues
+  - Maintained full backward compatibility with existing boolean flags
+
+### Changed
+- **System Prompt Updates**
+  - Updated task completion marker from `TUNACODE_TASK_COMPLETE` to `TUNACODE DONE:`
+  - Enhanced tool documentation and examples
+  - Improved agent behavior rules and instructions
+  - Fixed test cases to match new completion marker format
+
+### Fixed
+- **Test Alignment Issues** - Updated test cases to use correct completion marker format
+- **System Prompt Consistency** - Ensured all documentation and tests use consistent completion signaling
+
+## [0.0.71] - 2025-09-11
+
+### Added
+- **Configurable Tool Strict Validation** - Users can now control tool parameter validation behavior through `tool_strict_validation` setting in tunacode.json
+  - Added configuration option for tool strict validation (defaults to false for backward compatibility)
+  - Updated all Tool constructors to use configurable setting
+
+### Fixed
+- **Tool Constructor Validation Issues** - Added `strict=False` parameter to prevent validation failures when tool parameters don't exactly match function signatures
+  - Updated Tool constructors in agent configuration to include strict parameter
+  - Improved system reliability and user experience
+
+## [0.0.70] - 2025-09-11
+
+### Added
+- **Enhanced Configuration Documentation** - Added comprehensive documentation for new tunacode.json settings
+  - Documented tool validation configuration options
+  - Added examples and usage guidelines
+
+### Changed
+- **Model Configuration Updates** - Updated OpenRouter model references and configurations
+  - Enhanced model selection and validation logic
+  - Improved integration with models.dev service
+
 ## [0.0.69] - 2025-08-21
 
 ### Summary
@@ -31,12 +79,6 @@ This release includes comprehensive command system documentation, updated model
 ### Fixed
 - Removed broken link to non-existent `templates.md` file in documentation
 
-## [Unreleased]
-
-### Added
-- **Configurable Tool Strict Validation** - Users can now control tool parameter validation behavior through `tool_strict_validation` setting in tunacode.json
-  - Added configuration option for tool strict validation (defaults to false for backward compatibility)
-  - Updated all Tool constructors to use configurable setting
   - Enhanced configuration documentation with new setting details
 
 ### Fixed