Nervos CKB Development Update #18

Aug 19 to Sep 1

by Ian Yang, Xuejie Xiao, Qian Linfeng and James Chen.

TL;DR

• We have published the serialization specification (PR#136).
• v0.20.0 will release this Saturday, Sept 7

Changes in RFCs

• PR#136 describes the serialization format used in CKB.
• RFC#0022 is an informational document about the CKB Transaction Structure.

Changes in CKB

During the last two weeks, the team was busy fixing bugs found in v0.19.0. Version v0.20.0 is a minor release which only contains refactoring and bug fixes.

We have refactored the serialization schema to make it more space efficient, such as

• #1505: Refactor serialization schema for performance (@doitian)
• #1469: Change Header#dao to Byte32 (@quake)
• #1486: Use Byte32 to replace the majority of H256 (@yangby-cryptape)

@Quake has fixed a bug (#1519) and a performance issue (#1520) in indexer RPC.

Changes in CKB VM

• #81: Upgrade goblin (@driftluo)
• #82: Fix FlatMemory overflows

Changes in P2P

• #181: Support new serialization(molecule), and can switch by features
• #182: Default shutdown network service when protocol handler panicked
• #183: Fix a security issue in yamux

Changes in CKB CLI

• #49: Support dao transaction
• #63: Add serialization utils sub-commands

Changes in Toolchains

SDKs

• Release v0.19.0
• Start implementing client side serialization

Neuron Wallet

• Fix keystore mac calculation bug
• Update code sign certification
• Improve error handling
• Update SDK to v0.19.0

CKB Explorer

• Tweak performance to load large data pages faster
• Update SDK to v0.19.0
• Apply address format change
• Update block reward and hash rate display

CKB Testnet Faucet

• Update SDK to v0.19.0
• Refactor (remove unused APIs)

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