mcp_client 0.1.6 changelog

0.1.6 #

Fixed
- SSE Transport Connection Issues: Fixed critical issue with Server-Sent Events (SSE) connection where the client could not properly process JSON-RPC responses from the server.
  - Improved event stream processing to correctly parse JSON-RPC messages
  - Fixed handling of the endpoint event to establish the message channel
  - Enhanced buffer management for fragmented SSE event data
- JSON-RPC Message Flow: Corrected the bidirectional communication flow between client and server:
  - Client requests via HTTP POST to message endpoint now properly receive responses
  - Fixed timeout issues by correctly handling asynchronous SSE responses
Improved
- Error Handling: Enhanced error reporting and recovery for connection issues
- Logging: Added more detailed diagnostic logging for easier troubleshooting
- Stability: More robust message endpoint URL construction and session handling
Technical Notes
- Updated SseClientTransport implementation to maintain persistent connections
- Fixed JSON response type handling for resource templates
- Improved session management and reconnection logic

New Features
- Protocol Update: Full support for all features of the 2024-11-05 protocol specification
- Progress Tracking: Added onProgress method to receive notifications about progress of long-running operations
- Operation Cancellation: Added cancelOperation method to cancel running operations
- Server Health Check: Added healthCheck method to check server's health status
- Resource Template Enhancement: Added getResourceWithTemplate method to access resources using URI templates
- Tool Execution with Progress Tracking: Added callToolWithTracking method that returns operation IDs
- Enhanced Resource Update Notifications: Added onResourceContentUpdated method that includes content information
- Sampling Response Handling: Added onSamplingResponse method to process sampling results
New Model Classes
- ServerHealth: Class to hold server health status information
- PendingOperation: Class for managing ongoing operations
- ProgressUpdate: Class for operation progress updates
- CachedResource: Class for resource caching
- ToolCallTracking: Class to return tool call results and operation IDs together
Technical Improvements
- Enhanced protocol version validation
- Improved error handling and exception messages
- Added options to colorize logs and include timestamps for easier debugging