Fiber Dev Log 2025-08-07

[XuJiandong]

Updates

Features

• Fiber Breaking Change Migration Guide: Add note for break change migration and tweak shutdown channel rpc #798
• Core implementation of WASM support done.
• Initial code for Fiber dashboard backend completed, with four basic APIs implemented: https://github.com/driftluo/fiber-dashboard-backend.
  • Additional APIs will follow.
• Basic MPP (Multi-Part Payments) support
  • Getting ready to run regression tests before release

Improvements

• Watchtower RPC enhancement
  • Retrieve node_id from RPC token
  • Store watchtower preimages in a separate DB column
  • Allow local node access to Watchtower
  • Tuned doc gen tools
• Added funding tx verification:
  1. feat: funding tx testing #785
  2. feat: verify TxUpdate from peer #792
  3. feature/funding tx verification #794

Fixes

• Fixed TLC hanging issue after a node goes offline
• Fixed invoice status handling when TLC timeout occurs
• Fixed inconsistency between TLC expiry and commitment_delay_epoch: Fix MIN_TLC_EXPIRY_DELTA to resepct commitment_delay_epoch #805
• Fixed Tentacle repeated dial issue:
  • Fix unstable CI cause by reuse_port_for_websocket option #803
  • Use new tentacle release for dial same peer multiple times issue #807
• Benchmark testing fixes:
  • Fix performance regression and add benchmark test in CI #793
  • chore: trivial fix on benchmark test #796
• Fixed MPP bugs:
  • 79ad08f
  • e4739a0
• WASM bug fixes:
  • Build support for wasm32-unknown-unknown #705
  • Database implementation for fiber wasm #733
  • Add document and release CI for Fiber wasm #804

In Pipeline…

• Continue refining Atomic MPP
• Ongoing work on Fiber dashboard frontend
• Collaborating with JoyID and USDI teams on new Fiber version.
• Fiber WASM Finalization: Writing unit tests and preparing a developer-friendly demo to showcase usage
• Finalizing e2e test framework for funding tx verification based on #[785](feat: funding tx testing #785).
• Resume work on multi-hops cross-chain payments.