TeamCKB Dev Log (Updated: 16 April, 2025)

[CKBdev]

Updates

Dec 26, 2024

Features

• CKB
  • Released v0.120.0 Release ckb 0.120.0 (29456f5 2024-12-11) · nervosnetwork/ckb
• Fiber Network
  • Released v0.0.1 Release v0.0.1 · nervosnetwork/fiber
  • Finished refactoring of the gossip message protocol: Refactor gossip protocol fiber#308
  • Refactoring and bug fixes:
    • Fix tlc space issue caused by remote_nonces and remote_commitment_points fiber#374
    • Add limit parameters for channel in each side fiber#385
    • Refactor tlc forwarding and add more unit tests fro error handling fiber#388
    • Improve path finding and send payment error handling fiber#397
    • Fix path find fee rate issue from source node fiber#382
    • Fix onion hop length limit issue fiber#383
    • Fix udt overflow issue caused by u64 fiber#398
    • Use liquid capacity for channel gossip information fiber#400
    • Completed Onion error encryption Onion error encryption fiber#356
• Contracts
  • Omnilock: Update secp256k1 to v0.6.0 cryptape/omnilock#8
  • CKB Miscellaneous Scripts: Update mbedtls to v3.6.2 ckb-miscellaneous-scripts#30
• SDKs & Tools
  • Added Neon target support in blake2b-rs Add neon target support blake2b-rs#17
  • Completed ckb-sdk-go missing rpc Complete ckb-sdk-go missing rpc ckb-sdk-go#229
  • Released docs.nervos.org v2.14.0
    • Intro to Hard Fork | Nervos CKB
    • Intro to Script | Nervos CKB

In Pipeline…

• CKB
  • Proxy and Onion Support
    • Proxy and Onion in Tentacle Support proxy and onion tentacle#392
    • Proxy for CKB [WIP] Add proxy support for ckb #4733
  • Tentacle hole punching
  • use last_common as start in BlockFetcher #4723
  • Extend the hardcoded assume_valid_target to an array. #4742
  • Investigating solutions for CKB Database Multi-Version Management
  • Working on light client WASM integration
  • Researching BTC Erlay
• CKB VM
  • nervosnetwork/ckb-js-vm optimization
    • Binary size under 400k after optimization
    • Opcode optimization for performance
    • ckb-js-vm re-design
      • Simplify the process of writing on-chain scripts in JavaScript.
      • Provide compatibility with the NPM ecosystem.
      • Leverage the existing codebase to facilitate the development of Lock scripts (BTC, ETH, CKB), xUDT with JavaScript extensions.
  • Blake2b C version optimization yielded no significant performance improvement because the compiler has already done a good job.
• Fiber Network
  • Continue refactoring the gossip protocol
    • Graph is not updated immediately when a TlcErrData::ChannelFailed is sent from a peer fiber#407
    • Querying missing gossip messages is not very robost fiber#408
  • Resolving TLC operation issue caused by peer not waiting ACK from sender
  • Excluding used Cells during concurrent funding requests: Cells exclusion for active funding tx negotiation fiber#74
• SDKs & Tools
  • Rust SDK async RPC client: feat: add new macro to support async client ckb-sdk-rust#132
  • IPC service support in ckb-debugger

GitHub: CKB Dev Log 2024-12-26 · nervosnetwork/ckb · Discussion #4761 · GitHub

[knmo]

@CKBdev

Fiber Network

• Released v0.0.1 Release v0.0.1 · nervosnetwork/fiber

Congratulations, what a lovely present for your fifth birthday Nervos Network! A vision seems to have become reality. Lightning can finally be as it should be. Decentralized, flexible, fast, simple, private and secure. Financial future technology today.

[CKBdev]

Updates

Jan 8, 2025

Features

• SDK
  • Rust SDK now supports async API: feat: add new macro to support async client ckb-sdk-rust#132
• CKB
  • CKB on WASM now supports WSS: feat: wasm support wss tentacle#393 chore: upgrade tentacle #4765 peer-store, wasm: use path as database name in wasm peer-store implementation #4760
  • Proxy support for CKB: [WIP] Add proxy support for ckb #4733
  • NAT support for CKB: feat: add a protocol to try connecting peers behind firewalls or NAT routers #4766
• Light Client
  • WASM support: support wasm cryptape/ckb-light-test#9
  • A demo also prepared: GitHub - Officeyutong/ckb-light-client-wasm-demo
• Fiber
  • Default funding lock: feat: add default funding lock script fiber#442

Improvements

• Fiber
  • Unified cryptographic signing utilities: Unify various cryptography functions fiber#420
  • Unit tests for gossip message processing: Add some unit tests for channel related gossip message processing fiber#418
  • Simplified and cleaned up code for better readability: chore: simplify fn prune_messages_to_be_saved fiber#414 chore: code cleanup fiber#417
  • TLC ACK operation revisited: Tlc operations wait dual ack fiber#416
  • Retryable forwarding TLC introduced: Add retryable forwarding tlc fiber#440
  • Ongoing extensive tests to ensure Fiber’s stability
• ckb-script-templates
  • Better instructions and error messages introduced for native simulator: Add instructions and error messages about generate-native-simulator cryptape/ckb-script-templates#21
  • Compatible templates ensured with the latest cargo-generate: Ensure destination folder exists before invoking cargo generate cryptape/ckb-script-templates#25
  • Better handling of different packaging strategies amongst different distribution: Leverage another LLVM binary to locate current clang binary cryptape/ckb-script-templates#23
• ckb-js-vm
  • Updated upstream dependencies: Update upstream and refactor project structure ckb-js-vm#21
  • Introduced fs.lua to JavaScript: feat: rewrite fs.lua in JavaScript(node) ckb-js-vm#22
  • Reproducible build enabled: feat: add reproducible build ckb-js-vm#24
  • CKB related code reorganized in a proper module: refactor: change ckb to module ckb-js-vm#25
  • Code reorganized per JavaScript conventions: refactor: load init.js before index.js ckb-js-vm#26

Fixes

• Fiber
  • Fixed missing broadcast messages during a query request: Query missing broadcast messages from peers fiber#428
  • Cached ChannelAnnoucement timestamp to reduce round-trips with CKB: Save our own broadcast message directly and save raw gossip message from peers to memory first fiber#434
  • Made CI more resilient with configurable syncer count: Make number of active/passive syncers configurable fiber#429
  • Fixed CI failure by propagating panics: Panick the whole program when actor panick fiber#435
  • Adopted Molecule for deterministic hashing: fix: deterministically hash should use molecule fiber#415
  • Adopted Molecule for serializing relevant data structures: Use molecule for hopdata and tlc_err fiber#425
  • Adjusted gossip to ignore private addresses: fix: gossip actor and graph should ignore private address fiber#421
  • Allowed private channels as sources: fix: use private channel as source should be ok fiber#426
  • Properly set inbound channel actor names: fix: inbound channel actor name fiber#439
  • Regulated field names in RPC: [BREAKING CHANGE] fix: unify the fields name in rpc fiber#441
  • Cleaned up channel RPC and fixed self payment when both parties have 0 remote balance: Add custom hop hints and fix self payment fiber#432
  • Resolved a self payment error: fix a bug in direct channel fiber#411
  • Ensured the network graph updated properly when a message is received: Retry all payment session with actor message fiber#430
  • Updated network graph when a channel is closed: Network graph should sync up when channel closed fiber#412

In Pipeline…

• Fiber 1.0.0 release is in progress. Please stay tuned!
• Cryptape’s website is undergoing a major overhaul.

GitHub: CKB Dev Log 2025-01-08 · nervosnetwork/ckb · Discussion #4777 · GitHub

[CKBdev]

Updates

Jan 22, 2025

Features

CKB

• CKB v0.121.0-rc2 pre-released: Release ckb 0.121.0-rc2 (0baafc6 2025-01-19) · nervosnetwork/ckb · GitHub

Fiber

• Fiber has seen multiple updates, with the latest being v0.3.1: Releases · nervosnetwork/fiber · GitHub

Improvements & Fixes

CKB

• CKB new db schema POC:
  • iterator Seek slowdown after delete many keys facebook/rocksdb#10300
  • Support DeleteRange in transactions facebook/rocksdb#4812
• Peer store optimization: Peer store optimization #4783
• ckb-js-std C bindings:
  • Bindings to secp256k1: feat: add secp256k1 0.6.0 ckb-js-vm#28
  • Bindings to hash functions: feat: add sha2-sha256, keccak256, ripemd160, blake2b bindings ckb-js-vm#30
  • Bindings to smt: feat: smt bindings ckb-js-vm#31
  • refactor: batch changes to syscall bindings ckb-js-vm#35
• ckb-js-vm updates:
  • Mount binding optimizations: Allows mounting on a specific path ckb-js-vm#36
• Security fixes:
  • GitHub - libraries/ckb at args_reader

Fiber

• Design updates:
  • Handle errors before channel ready fiber#437
• Pathfinding improvements:
  • Removed some duplicated logics: Minimize work done by build_route fiber#471
  • Use private channel hop hints: Handle private channel hop hints fiber#487
  • Add unit test for last hop stopped fiber#460
  • Fix issue that the failure of middle hop tlc forwarding does not returned fiber#457
• Message broadcast improvements:
  • Save our own broadcast message directly and save raw gossip message from peers to memory first fiber#434
  • Send channel tlc info directly to counterparty and update network graph with owned channel information fiber#446
  • Rebase some conflicting PRs:: Query missing broadcast messages from peers fiber#428
• Migration updates:
  • Add migration from v0.2.0 to v0.2.1 fiber#468
  • Use Vec<u8> as middle man to deserialize various types fiber#483
  • Move migration to standalone binary fiber#474
• Minor fixes:
  • Make number of active/passive syncers configurable fiber#429
  • Handle SIGTERM on unix-like systems fiber#472
  • Don’t return error while handling actor messages fiber#462
  • Cleanup preimage after tlc is settled fiber#454
  • Fix payment history assertion crash fiber#484
  • chore: Fix RPC document issues fiber#467

Tentacle

• Sync changes from upstream: feat: change by upstream tentacle#395

In Pipeline

CKB

• ckb-light-client-wasm review in progress: feat: wasm support for browser ckb-light-client#204
• CKB v0.121 release
• ckb-js-std development in progress: TypeScript/JavaScript and documentation
• Contract development with SilentBerry in progress: GitHub - ksleifjsslsls/silent-berry

Fiber

• Addressing the reestablishment of Fiber channels in intermediate states following a node restart: [send_payment] return Musig2RoundFinalizeError when mid node update_channel fiber#480

GitHub: CKB Dev Log 2025-01-22 · nervosnetwork/ckb · Discussion #4791 · GitHub

[CKBdev]

Updates

Feb 19, 2025

Features

CKB

• Released and published ckb-java-sdk 3.0.1 to Maven: Maven Central: org.nervos.ckb:ckb
• Implemented ckb-js-std library, including Molecule serialization, high-level API encapsulation, Type ID, and hasher: ckb-js-vm/packages/core at main · nervosnetwork/ckb-js-vm · GitHub

Fiber

• Added multi-hop routing support for cross-chain payments: GitHub - contrun/fiber at support-fiber-multiple-hops-payment-in-cross-chain-transaction
• Implemented Fiber payment/invoice subscription; Cross-chain hub now uses fiber payment/invoice to drive cross-chain order updates

Improvements & Fixes

CKB

• Published CIGHASH_ALL RFC: Add CIGHASH_ALL specification proposal rfcs#446
• ckb-script refactored: refactor: ckb-script package overhaul #4803
• faster-hex now supports serialization/deserialization of Option<T> field: support option-macro serde macro faster-hex#59
• Deployed the new multisig via dep_group on both testnet and mainnet.
• CKB Debugger now performs pre-execution error checks on mock transactions, providing detailed error messages for those with format or structural errors
• Peer store improved:
  • Generate the corresponding filter based on transport: feat: impl filter with transport #4800
  • Mark the connection time with the DNS address to enable its global propagation: feat: mark dns address connected time on peer store #4793

Fiber

• Pre-Ready Channels Management design finished
• Fixed and improved various issues:
  • fix: resolve force close amount bug fiber#505
  • Fix Musig2RoundFinalizeError caused by concurrency problem fiber#493
  • Fix disable channel and private channel send payment issue fiber#502
  • chore: fix clippy and enable it in CI fiber#504
  • chore: code refactor on watchtower and trivial fixes on doc fiber#509
  • chore: remove unused RotateOutboundPassiveSyncingPeers in gossip fiber#510

In Pipeline

CKB

• Final review of the mainnet hardfork plan and schedule confirmation

Fiber

• Status management on restart
• Release mainnet version

GitHub: CKB Dev Log 2025-02-19 · nervosnetwork/ckb · Discussion #4809 · GitHub

[CKBdev]

Updates

5 March, 2025

Features

CKB

• Released CKB 0.200.0 Releases · nervosnetwork/ckb · GitHub with Meepo hardfork time scheduled
• Released ckb-debugger: Release v0.200.0-rc1 · nervosnetwork/ckb-standalone-debugger · GitHub
• Released TypeScript-based ckb-testtool for unit testing: feat: add package ckb-testtool ckb-js-vm#55
• Launched an experimental JavaScript-based CKB script testing framework using CCC: Add unittest package ckb-devrel/ccc#164
  • An example project for contract development and testing entirely in JavaScript: GitHub - libraries/ccc-unittest-example
• Experimental quantum-resistant lock overhaul: GitHub - xxuejie/quantum-resistant-lock-script at overhaul

Fiber

• Released Fiber v0.4.0 & mainnet deployment Release v0.4.0 · nervosnetwork/fiber · GitHub
• Added WebSocket interfaces for Fiber nodes to subscribe to invoice/payment state changes: Persist cch state and make cch a standalone service fiber#522
• Introduced Fiber Autopilot, an experimental project for continuous network analysis and peer recommendation: GitHub - nervosnetwork/fiber-autopilot

Improvements & Fixes

CKB

• Developed a CKB message propagation simulator to test Erlay’s effects: GitHub - Officeyutong/ckb-message-transport-simulator
  • Upgraded multiaddr to support Onion protocol in the hardfork version: chore: upgrade multiaddr #4810
• Refactored ckb-probe: feat: support hardfork cryptape/ckb-discovery#5
• Network code refactoring: revert: revert unnecessary operations #4812
• Minor updates to ckb-script: chore(script): make DataLocation public #4815

Fiber

• Addressed a pending offered TLC amount calculation issue in CCH: Confirmed failed tlc should not in check limit and build settlement outputs fiber#528
• Fixed node restart issues during critical operations: Add ui test for send payment middle hops restarting fiber#512 Fix shutdown issues fiber#516
• Added extra fields for channel RPC: Add extra fields for channel RPC fiber#514
• Refactoring watchtower: Refactor watchtower fiber#524
• Implementing incremental funding tx construction: feat: ensure funding tx is built incrementally fiber#517
• Refactoring Funding Tracing Refactor Funding Tracing fiber#519
• Updating live cells to exclude those used by ongoing funding tx Exclude live cells used by ongoing funding tx fiber#521

In Pipeline

Fiber

• Expand channel and router RPC capabilities
• Conduct Fiber autopilot simulation and testing

GitHub: CKB Dev Log 2025-03-05 · nervosnetwork/ckb · Discussion #4829 · GitHub

[CKBdev]

Updates

19 March, 2025

Release

• ckb-debugger: Added macOS (x64) and linux (arm64) releases for ckb-debugger 0.200.0

Features & Resources

• New RFC for standardizing hardfork naming conventions — Introduced another RFC to standardize the naming convention for hardforks, clarifying timeline policies and processes. RFC(0053): CKB Hardfork rfcs#442
• New blog post — Transforming IPC in CKB On-Chain Script
• New tutorial for ckb-js-vm — A complete guide for writing on-chain Scripts in TypeScript
• Published create-ckb-js-vm-app — a CLI tool for quickly bootstrapping CKB Scripts powered by ckb-js-vm.
• Rust 2024 edition upgrade for CKB-related packages

Improvements

• Customizable syscall generator — Enables ckb-script to be used in more environments. feat: Syscall generator shall be customizable #4847
• Enhanced CKB standalone debugger: Add feature for using AsmMachine in debugger ckb-standalone-debugger#162
• Erlay experiment — Created a ckb-message-transport-simulator to test Erlay algorithm, confirming can save ~33% of bandwidth.
• Cargo auto-inheritance — Centralized dependencies with cargo-autoinherit to improve CKB workspace maintainability: Centralize dependencies with cargo autoinherit to improve CKB workspace maintainability #4832
• User configuration check added: chore: when the user configuration is wrong, exit and output log #4833

In sub-projects:

ckb-std

• Added multisig test to SPHINCS±based Quantum lock
• Add new macros to allow assertions with custom exit code ckb-std#131

ckb-script-templates

• Use a generic library feature to setup contract cryptape/ckb-script-templates#31

tentacle

• fix: fix stream only write will stuck forever tentacle#398

ckb node probe

• Allow online node information to be updated in a timely manner feat: remove dial list filter cryptape/ckb-discovery#6

In Pipeline

• Network tests on Erlay — Evaluating its impact before deciding on further development.
• CKB bootstrapper Improvements — Ensuring reproducible builds for CKB source archives and binary releases: ckb-bootstrapper/projects/ckb at main · xxuejie/ckb-bootstrapper · GitHub
• Multisig Proposal – Developing a common multisig solution compatible with any signature verification algorithm.
• Contract Fuzz Testing – More efforts on fuzz testing for smart contracts.
• NAT Traversal for CKB – Ongoing work on NAT penetration solutions.

GitHub: CKB Dev Log 2025-03-19 · nervosnetwork/ckb · Discussion #4855 · GitHub

[CKBdev]

Updates

2025-04-02

Features

• WASM support for Rust actor framework Ractor (WIP): GitHub - Officeyutong/ractor at support-for-wasm-in-browser
• TypeScript implementation of ckb-script-ipc: feat: IPC implementation ckb-js-vm#66
• RPC interface ipc_call added: feat(rpc): add IPC call #4861
• NAT traversal demo supporting TCP/UDP: GitHub - driftluo/nat-traversal-demo

Improvements & Fixes

• Tentacle refactoring: Pull requests · nervosnetwork/tentacle · GitHub
• Multisig fix: fix: Enhance multisig handling for optional since value ckb-system-scripts#99
• Refactoring ckb-vm:
  • refactor: ckb-script shall only rely on DefaultMachineRunner trait #4856
  • feat: Add new DefaultMachineRunner trait for initialization work ckb-vm#470
  • refactor: Add a new trait between AsmMachine and Box ckb-vm#473
  • GitHub - xxuejie/ckb at scheduler-hooks
• Rust SDK bug fixes:
  • chore: change std sleep to tokio sleep ckb-sdk-rust#137
  • fix: fix method wrong impl ckb-sdk-rust#136

In Pipeline

• Porting block relay outbound mechanism
• CKB V0.201.0 release preparation: Release CKB v0.201.0 #4857
• C implementation of ckb-script-ipc
• CKB script fuzzing
• Experiments on CKB’s unreliable tests
• Refactoring documents on Scripts
• Reddit AMA on hardfork
• Developing scaffolding tools on Offckb
• Tentacle v0.7 release

GitHub: CKB Dev Log 2025-04-02 · nervosnetwork/ckb · Discussion #4864 · GitHub

[CKBdev]

Updates

2025-04-16

Features

• Released v0.201.0: Release CKB v0.201.0 · Issue #4857 · nervosnetwork/ckb · GitHub
  • Fixed CKB WASM build failure: wasm: fix `make wasm` build failed by `error[E0521]: borrowed data escapes outside of closure` by eval-exec · Pull Request #4825 · nervosnetwork/ckb · GitHub
  • Upgraded rust-toolchain to 1.85.0
• Implement ckb-script-ipc in C: feat: add C implementation by XuJiandong · Pull Request #24 · XuJiandong/ckb-script-ipc · GitHub
• Tentacle v0.7.0 released: Release 0.7.0 · nervosnetwork/tentacle · GitHub
  • Added support proxy and onion network: Support proxy and onion by eval-exec · Pull Request #392 · nervosnetwork/tentacle · GitHub
  • Fix window update handling in tokio_yamux to prevent write operations from hanging when streams are not actively read: fix: fix stream only write will stuck forever by driftluo · Pull Request #398 · nervosnetwork/tentacle · GitHub
• ckb-debugger improvements where WASM debugging is functional again: Getting wasm working again by mohanson · Pull Request #168 · nervosnetwork/ckb-standalone-debugger · GitHub
• ckb-light-client: added mininum fee rate check when sending transactions: feat: add min fee rate check when sending transactions by Officeyutong · Pull Request #216 · nervosnetwork/ckb-light-client · GitHub

Improvements

• Improved data accuracy in CKB Node Probe (nodes.ckb.dev): feat: avoid reset data by driftluo · Pull Request #7 · cryptape/ckb-discovery · GitHub

In Pipeline

1. Revisiting Scheduler’s public API: refactor: Revisit Scheduler's public API by xxuejie · Pull Request #4870 · nervosnetwork/ckb · GitHub
2. Implementing ipc_call feature: feat(rpc): add IPC call by mohanson · Pull Request #4861 · nervosnetwork/ckb · GitHub
3. Implementing fuzzing on ckb-system-scripts: GitHub - nervosnetwork/ckb-system-scripts: CKB's official system scripts. Those contracts will be included in system cells in genesis blocks
4. Refactoring ckb-debugger
5. Implementing hole punching protocol for NAT traversal feat: add a hole punching protocol try use on nat traversal by driftluo · Pull Request #4873 · nervosnetwork/ckb · GitHub

GitHub: CKB Dev Log 2025-04-16 · nervosnetwork/ckb · Discussion #4875 · GitHub