CKB Dev Log 2024-11-27

[contrun]

Updates

• CKB

  • Released OffCKB, an developer toolkit to start a local devnet easily for rapid iteration. Learn more: Introduce OffCKB, a CKB Local Development Environment - English - Nervos Talk
  • Provided basic Wasm support for the ckb-light-client, enabling it to run in browsers, perform basic queries, and be embedded in web pages, with the proof-of-concept (POC) now completed. feat: small wasm support #4683

• Fiber Network

  • Channels are now public by default. fix: channel should be public by default fiber#331
  • Basic database migration has been added to the node, smoothing the updating process. Add database migration fiber#315
  • More robust validation of TLC while forwarding payments has been added. Add expiry check for rpc and HTLC forwarding fiber#317

• CKB-VM

  • ckb-crypto-services merged into ckb-script-ipc, greatly simplifying the use of cryptography services (e.g.) for CKB developers. Ckb crypto service XuJiandong/ckb-script-ipc#13
  • A few improvements for CKB native simulator merged, reducing debugging challenges for smart contracts. Support new spawn with native simulator ckb-std#114 Add Template: Native Simulator Debug cryptape/ckb-script-templates#14 Support new spawn with native simulator ckb-testtool#8
  • A collection of no_std compatible modules from the Rust standard library, focusing on the io module, ported to CKB. GitHub - XuJiandong/ckb-rust-std: A collection of no_std compatible modules ported from Rust's standard library, with an initial focus on the io module.

Fixes

• Fiber Network
  • Private addresses are now filtered out by default while broadcasting NodeAnnouncement. chore: do not announce private addresses by default fiber#325
  • The calculation of the size of shutdown Script was corrected. fix: resolve shutdown script size bug fiber#338
  • An issue related to sending payments to oneself was fixed. Fix pay self issue in network graph path finding fiber#302
  • A bug causing incorrect fee calculation while building payment route was fixed. Fix build_router fee rate issue fiber#323

In Pipeline

• CKB

  • CKB Database Multi-Version Management is under discussion
  • New Hardfork Guidelines are in preparation to facilitate the process
  • Planning reproducible build for CKB is progressing well
  • More rigorous CKB on Wasm is incoming
  • A few bugs are documented and under investigation for a fix.
    • CKB node sync pauses because connected peers’ heights are not the latest · Issue #4714 · nervosnetwork/ckb · GitHub
    • Run V0.119 with 0.114 data sync throw error · Issue #4713 · nervosnetwork/ckb · GitHub

• CKB-VM

  • A new and much easier way to reuse existing contract codes is almost ready. GitHub - XuJiandong/ckb-script-ipc: Rust library for automated IPC in CKB scripts, featuring proc-macros and runtime support.

    This is based on Spawn and Rust’s powerful macro system, while users need to know little about the underlying implementations.

  • A library for Fixed-Point Arithmetic is under investigation. This will hopefully make DeFi products development easier on CKB.

• Fiber Network

  • Excluding used Cells during concurrent funding requests: Cells exclusion for active funding tx negotiation fiber#74
  • Integrating Fiber Sphnix error messages for better payment error handling Integrate fiber sphinx to return errors of payment requests fiber#198
  • A more robust gossip message protocol is coming. [WIP] Refactor gossip protocol fiber#308
  • Issues occurred while adding invalid TLCs causing signature verification failures are identified and planed to be fixed. [send_payment] Call send_payment twice at the same time cause Musig2VerifyError fiber#245