Fiber Dev Log 2025-04-17

[eval-exec]

Updates

Features

• Fiber v0.5.0 Released

  Including breaking changes to both contract behavior and configuration files.

  View the release note for more details: https://github.com/nervosnetwork/fiber/releases/tag/v0.5.0

Fixes

Performance & Build

• Resolved performance regression: fix: resolve performance regression issue #661
• Fixed compiling issue caused by build.rs: fix compiling issue caused by build.rs #651

Watchtower Improvements

• Watchtower now loops through all live cells to prevent transaction pinning attacks.
  • Extracted preimage discovery into a dedicated find_preimages function: fix: watchtower should use loop to get all cells #644
• Watchtower now claims upstream HTLCs using on-chain preimages: fix: watchtower should claim upstream tlc with onchain preimage #640

Channel Handling

• Force-close channel when HTLCs expire without response: fix: should force close channel when htlc is expired without response  #623
• Forbid abandoning signed funding channels to prevent risk from peers committing signed funding transactions later: ****feat: forbid abandoning signed funding channels #633
• Fixed invoice cancel bug caused by check channels job in edge cases: Fix invoice cancel bug caused by check channels #657
• Added test for retrying remove HLC and preimages cleanup: ****Add test for retrying remove tlc and preimages cleanup #647

In Progress

• Fixing channel closure issue

  Addresses the problem where channels get stuck in the AWAITING_CHANNEL_READY state: Cannot close channel stuck in AWAITING_CHANNEL_READY state #606

• Refactoring the Watchtower into a standalone service with WASM support

• Implementing database support to Fiber WASM.