Fiber Dev Log 2024-03-20

[chenyukang]

👉 Releases

Fiber is now undergoing mainnet testing, with two minor releases last week:

• https://github.com/nervosnetwork/fiber/releases/tag/v0.4.1
• https://github.com/nervosnetwork/fiber/releases/tag/v0.4.2

These releases primarily address bug fixes on corner cases and watchtower, with a minor breaking change in the invoice RPC. Several new features were also introduced:

• Support for payment custom records
• New RPC method to abandon channels
• Handling of private channel hop hints

🚀 Features

• AbandonChannel: clean up channel state for unsuccessful funding attempts. Add abandon channel #544
• Adds functionality for SendToRouter Add BuildRouter and SendPaymentWithRouter #577

🐝 Fixes

Various fixes to improve stability and performance:

• fix: resolve watchtower submit settlement tx error #538
• fix: resolve pending tlc expiry time bug #570
• Fix invoice attrs serialize and deserialize format #564
• chore: upgrade ckb deps to 0.200.0 #571
• chore: Update RPC documentation #568
• chore: fix not stable tests  #563
• Add typos to CI and fix typos #540

Improvements

Refined funding tracking, improved routing, and pruned outdated gossip messages, etc.

• Refactor Funding Tracing #519
• Exclude live cells used by ongoing funding tx #521
• Handle private channel hop hints #487
• Prune old gossip messages #541

Several improvements made on cross-channel (cch) multi-hop payment and path-finding:

• Persist cch state and make cch a standalone service #522
• Support fiber multiple hops payment in cross chain transaction #511
• Find path will try other channels considering busyness level  #569

In Pipeline

• Researching on migrating Fiber to WASM.