Fiber Dev Log 2025-06-12

[gpBlockchain]

Updates

Features

• FeatureVector support: Add FeatureVector to each node, require peers to exchange Init messages before opening channels, and implement compatibility checks on features:Add feature vector #719
• Multi-Part Payments (MPP) Support: Support MPP #730
  • HTLC attempt mechanism refactored
  • MPP hold HTLC settlement implemented
  • Path-finding for basic MPP https://github.com/chenyukang/fiber/tree/yukang-basic-mpp

Bug fixes & Improvements

• Vulnerability fixes:
  • fix: resolve handle_reestablish_channel_message overlfow #728
  • fix: resolve is_expired overflow #727
  • fix: resolve recover_payee_pub_key panic issue #726
  • Add check for invalid amounts #717
  • Fix amounts overflow issue in funding tx and code refactor #720
• Solved a Fiber WASM integration test problem
• Added documentation for node backup Create backup-guide.md #723

Ongoing Work

• Finalizing two funding PRs:
  • Funding Timeout
  • feat: ensure funding tx is built incrementally #517
• Rewriting multi-hops cross-chain hub PR
• MPP advanced features:
  • Hold HTLC timeout
  • Payment secrets
  • Check logic for the MPP feature in feature bits
  • Improved implementation of network, graph, and path finding
  • More complex tests
• Merging the second phase of Fiber WASM.Build support for wasm32-unknown-unknown #705