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bro-sdk/CHANGELOG.md
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Changelog

[0.5.0]

Breaking Changes

  • Project Rebranded to Brotocol:
    • The package scope changed from @xlink-network to @brotocol-xyz.
    • The main SDK class XLinkSDK has been renamed to BroSDK.
  • Upgraded @stacks/* dependencies to v7.x
    • bridgeFromStacks.sendTransaction type signature changed

Major New Features

  • BRC20 Bridging Support

    • Implemented full bridging capabilities for BRC20 tokens across multiple chains
    • Added bridgeFromBRC20 and estimateBridgeTransactionFromBRC20 APIs
    • Enabled bidirectional transfers between BRC20 and other supported chains

  • Runes Bridging Support

    • Added comprehensive support for Runes protocol tokens
    • Implemented bridgeFromRunes and estimateBridgeTransactionFromRunes APIs
    • Added Runestone transaction validation and processing

  • Cross-Chain Swap Capabilities

    • Implemented cross-chain swaps for seamless token exchanges
    • Enhanced route detection between existing tokens
    • Optimized swap transaction flow with improved fee estimation

  • DEX Aggregator Integrations

    • Added KyberSwap integration for optimal swap routing
    • Enhanced swap parameter helpers for DEX interactions
    • Added multi-hop routing capabilities for better exchange rates

  • New EVM Chains Support

    • Added support for Avalanche, Mezo chains
    • Added support for vLiaBTC, STX, TRUMP, GHIBLICZ, WETH, SOL, LINK, and more tokens on EVM chains

  • Dependencies upgrades

    • Viem -> v2.23.10

Security Enhancements

  • Added hard linkage support to Bitcoin/BRC-20/Runes > * routes
  • Disabled Replace-By-Fee (RBF) for Bitcoin transactions by default
  • Enhanced validation for bridge transactions
  • Improved error handling for malformed transaction data

Bug Fixes

  • Fixed reserve limitation not working on * > EVM routes
  • Fixed fixed fee rate token incorrect for Stacks > Meta routes
  • Resolved edge cases in cross-chain transaction validation
  • Fixed various minor issues and edge cases

Other Changes

  • Added cross-chain swap example code for developer reference
  • Multiple Stacks contract upgrades
  • Support for new fee charge model
  • Upgraded viem dependency
  • Improved code organization and documentation
  • Enhanced type safety with improved TypeScript definitions