CKB Dev Log 2022-12-28

[anipenguin]

Good morning BUIDLers! As we wrap up 2022, we’d like to update you on our recent progress and make it a New Year's resolution to share development updates with you on a biweekly basis.

Here’s a recap of what we’ve accomplished in the past few weeks:

• The release of v0.106.0

  • Upgrading is recommended if you experience block synchronization hiccups. Please follow the instruction in the release note as it requires database migration.
  • v0.106.0 provides better fee rate estimation (#3669) - [get_fee_rate_statics](<https://github.com/nervosnetwork/ckb/tree/develop/rpc#method-get_fee_rate_statics>) is added to help you estimate transaction fees more accurately. https://github.com/yangby-cryptape/ckb-extension-fee-estimator integration is underway.

• Light client protocol

  • The Light client soft fork on testnet is scheduled for New Year's Eve (2022-12-31 19:00 UTC+0000), oooh can't wait!

    • Confirm activation by query a ckb testnet node and check if the field result.deployments.LightClient.state is active , e.g.

      curl --request POST --url <https://testnet.ckbapp.dev> --header 'Content-Type: application/json' --data '{"id": 42, "jsonrpc":"2.0","method": "get_deployments_info","params":[]}'
      

    • With testnet activation, we can test light client based applications in real world environments. The ideal condition to launch the mainnet is after testing has been completed for 1~2 of such pilot applications (e.g. wallets like Neuron, Nexus and CKBull are all good candidates) on the testnet. You’re also encouraged to BUIDL one!

    • Mainnet deployment parameters is TBD.

  • Fixed a bug reported by audit firm.

• Fixed a bug where the race condition between block-filter and ChainService for the snapshot may result in a node getting stuck in block synchronization.

• Deployed owner-mode-enhanced xUDT script on testnet. Code audit in progress.

  Parameter	Value
  code_hash	0x25c29dc317811a6f6f3985a7a9ebc4838bd388d19d0feeecf0bcd60f6c0975bb
  hash_type	type
  tx_hash	0xd99fd4cc59477273e1cf01df14b80bf5fd83b2e68af3807aa5dece284a74fd12
  index	0x0
  dep_type	code

In Progress:

• Open Transaction
  • Drafting the two Open Transaction components we deemed very useful in this use case analysis
    • Open transaction format - a standard for describing the structure of OTX, its intention, how to sign it, etc.
    • Open transaction pool - a pool that, unlike the standard txpool, accepts, combines, and processes open transactions.
• Working on a proposal to incorporate Replace-By-Fee (RBF) to CKB.
• Support for Lua scripting is something we've been working on, and now that the fundamental work is complete, we are collaborating with a few community teams to make it more user-friendly.

Going forward, we are excited to continue building and co-creating with you all!

See you in 2023!