CKB Dev Log 2023-05-31

[anipenguin]

Voyager 2 by Ryan Howerter - @xxuejie

Updates

• As May came to a close, we successfully merge the code for the CKB2023 hardfork, marking a significant milestone. Details: ckb 2023 edition #3917

Features

• ckb-auth now supports Litecoin signatures, allowing users to unlock and sign CKB transactions with their Litecoin wallets, further enhancing user flexibility
  • Add litecoin signature support cryptape/ckb-auth#6
• CKB’s adoption of RocksDB, a high performance embedded database optimized for fast, low latency storage, has been
  • upgraded to v8.1.1 from upstream enabling building with GCC 13
  • upgraded the toolchain in rust
  • implemented support of two API methods MultiGet and BatchedMultiGet

Improvements

• ckb-std library:
  • A new API was added to load witness data as raw bytes, catering to users who may prefer different serialization formats
    • feat: add load_witness api to high_level mod ckb-std#51
  • A smaller or fixed-sized buffer is now used for syscalls interaction, reducing memory consumption of on-chain smart contracts
    • refactor: use fixed size array and smaller buffer size to load data ckb-std#49
  • The unit test toolchain has been upgraded to match the one used for building contract
    • chore: upgrade toolchain ckb-std#50
• CKB Rust SDK:
  • Refactored SimpleTransactionBuilder to simplify the process of building transactions by introducing the estimate_tx_size parameter. This makes the construction of transactions more straightforward and flexible
    • chore: refactor SimpleTransactionBuilder ckb-sdk-rust#76
  • introduced a new type ID handler to be used when deploying scripts
    • feat: add TypeId handler ckb-sdk-rust#77
• The Go SDK has been updated to reflect changes in CKB RPC
  • feat: Add time_added_to_pool ckb-sdk-go#207
• Refactored the plugin interface of Open Transaction preparing it to support more plugins
  • refactor: simplifying plugin extensions EthanYuan/open-transaction-pool#9
  • Refactor the code to make it easy to add plugins EthanYuan/open-transaction-pool#5
• Rewrote the branching logic in CKB-VM's LLVM Engine, making it one major step closer to production usage
  • Arbitrary jump refactoring xxuejie/ckb-vm-contrib#5

Fixed

• Resolved an issue where some RPC may not have returned results in hexadecimal numbers
  • RPC: Set jsonrpc::Ratio as the type of threshold field for DeploymentsInfo and Deployment  #3980.
• Made small adjustment in CKB’s RPC documentation to provide a more accurate guidance
  • docs: Fix trait SubscriptionRpc's comment #3979
• Mitigated the issue of intermittent CI failures and improved the reliability of ckb_replay tests by incorporating more blocks effectively
  • ci: ckb_replay more blocks to avoid CI failure #3985

In pipeline…

• The CKB Combine Lock script, aimed at boosting interoperability among CKB smart contracts, that lets you combine different signature algorithm scripts and easily verify them all together
• A comprehensive investigation and fix of CKB's faulty graceful shutdown mechanism
  • Fix ckb graceful shutdown #3994
• Multiple components of Open Transaction, including SDKs, Matcher Engine, RPC for interacting with the Open Transaction Pool, demo for doing atomic swap via CKB’s open transaction, feature signature verifications, along with a MVP of the Open Transactions P2P network
• Leverage existing transactions on CKB testnet/mainnet to test the correctness/performance of the new LLVM engine
• A major refactoring of CKB’s transaction pool
• Updates to the Capsule SUDT tutorial for a more comprehensive and up-to-date information
  • Capsule SUDT tutorial update docs.nervos.org#179