Arch Network v0.4.0 Release Notes

Major Features

WebSocket Improvements and Client

• Implemented new WebSocket subscription system for real-time updates
• Added async RPC client with improved performance
• Enhanced WebSocket manager with better connection handling
• Added new subscription types for various blockchain events

Blockchain and Transaction Handling

• Implemented new transaction graph system with improved testing
• Added support for inserting multiple transactions simultaneously
• Enhanced block queue management and processing
• Improved transaction tree updates and storage
• Added new epoch block handling mechanisms

Snapshot System Overhaul

• Implemented new Borsh snapshot system for improved performance
• Added support for incremental snapshots
• Implemented chunk-based snapshot transfer
• Added robust snapshot verification system
• Improved snapshot cleanup and management
• Added file-based block saving for better efficiency

Network and Protocol Improvements

• Implemented native libp2p ping for better network health monitoring
• Enhanced message filtering system
• Improved node identification using Identify info
• Added graceful shutdown for network operations
• Enhanced bootnode connection security

RPC and API Enhancements

• Added new RPC methods for improved blockchain indexing
• Enhanced blockchain data retrieval capabilities
• Implemented new API endpoints for better client integration
• Added new account data handling mechanisms

DKG (Distributed Key Generation) Improvements

• Refactored resharing system for better reliability
• Automated DKG start when whitelist is fully reachable
• Enhanced group key consensus mechanism
• Improved DKG timeout handling

Developer Experience

• Added new clock example program
• Enhanced SDK documentation and examples
• Improved error handling across the codebase
• Added comprehensive testing utilities
• Enhanced program deployment capabilities

Breaking Changes

• Removed old account data from state change report
• Restructured network message handling
• Changed default port to 3030
• Removed unused confirmed_accounts_db
• Significant refactoring of the Arch SDK

Security Improvements

• Enhanced connection security in bootnode
• Improved message filtering and validation
• Added better signature verification for snapshots
• Enhanced group key management security

Performance Improvements

• Optimized block processing and validation
• Improved snapshot handling and transfer
• Enhanced transaction processing pipeline
• Reduced memory usage in various components

Documentation

• Added new documentation for rollback functionality
• Enhanced API documentation
• Added new examples and usage guides
• Improved code documentation across the codebase

Internal Changes

• Reorganized codebase structure for better maintainability
• Removed deprecated electrum client implementation
• Enhanced test coverage across multiple components
• Improved error handling and logging

Dependencies

• Updated titan to version 0.1.31
• Various dependency updates and security patches

For detailed information about specific changes, please refer to the commit history between v0.3.2 and v0.4.0.