v0.2.0

Release 0.2.0

This release includes major new features and improvements.

New Features

• Unified Bridge Interface (#74) - Single API for CCTP, Stargate, and Across bridging protocols with automatic route selection
• Uniswap V3 Token Swaps (#61) - Swap any token using Uniswap V3 with built-in slippage protection and spending limits
• CCTP Bridge Implementation - Cross-chain USDC transfers via Circle's Cross-Chain Transfer Protocol

Improvements

• Library Comparison Documentation (#77) - Comprehensive comparison with other Ethereum libraries
• NonceManager - Prevents race conditions in concurrent transactions
• LRU Cache for ENS - Prevents TOCTOU vulnerabilities in ENS resolution

Bug Fixes

• Fix nonce race condition (#62)
• Fix swap price impact calculation and ETH price errors
• Fix RPC request ID collision between multiple client instances (#66)
• Fix memory leak in PaymentWatcher (#64)
• Replace console.error with structured logging (#65)
• Fix secp256k1 signing with HMAC-SHA256 (#59)

Documentation

• Bridging feature documentation (#68)
• Add ETH as supported token in docs (#60)
• Update README with EVM chain support

Checklist

• Version bumped in package.json (0.1.5 → 0.2.0)
• All tests pass (1402 tests)
• Lint passes
• Typecheck passes

Post-Merge

After merging, create a GitHub release tagged v0.2.0 to trigger the npm publish workflow.