Breakout-room discussion #3 Agenda

[poojaranjan]

Date and Time

• Meeting Date/Time: Monday 21 September 2020, at 14:00 UTC
• Meeting Duration: 45 mins

Location

Zoom: Will be shared in the breakout-room in EthR&D discord channel

Agenda

• YOLOv2 EIPs discussion continued...
  • EIP-2935: Save historical block hashes in state
  • EIP-2718: Typed Transaction Envelope
• EIP-2972: Wrapped Legacy Transactions

(Depending on the status updates provided in AllCoreDev meeting, the agenda may add/remove any EIP)

[poojaranjan]

Meeting summary

EIP-2935: Save historical block hashes in state

• Not being considered in YOLOv2 in absence of any champion
• Sina shared an alternative proposal
  • Flight client approach that has the benefit of EIP-2935
  • better for light clients because you’d need lower bandwidth in order to find canonical chain
  • a little more complex than EIP-2935.
  • The new proposal will add the custom pre like structure in the block header.

Recommendation: Sina will get the proposal drafted to bring it to the ACD meeting for further comparison and/or considered for inclusion.

EIP-2718: Typed Transaction Envelope

• Difficult to test as there are no observable changes that 2718 itself proposes
• It essentially requires a need to tie 2718 to another EIP that actually proposes the transaction type
• agreement needed on what transaction type is tied to propagate these tests,

General agreement: Consider for v3

EIP-2972: Wrapped Legacy Transactions and other proposals

• disagreement on EIP-2972
• EIP-2711 may introduce some complexities, hard to sell and it's monolithic
• EIP-2930 is the best bet on transaction envelope

EIP-2930: Optional access lists

• Not going in v2 but will go on the mainnet with EIP-2718
• Consider for v3

Client status

• Geth (Martin)

  • Close to merge
  • Generating existing test cases with YOLO v2
  • A gist with 'failure with Istanbul' with YOLO v2' which other clients may use to check the state roots

• OpenEthereum (draganrakita)

  • Implementing: EIP-2929, close to the finish
  • Test: included, and implemented
  • For YOLO v2 - YOLOv1+EIP-2929
  • Ran the state test. Some changes need to be done

• Besu (Danno)

  • Debugging, mostly implemented

Next meeting: Not scheduled.
(Depends on any request that pops up in the breakroom (Discord) or proposed in the next All Core Dev meeting.)

References:

• Network upgrade process tracker - https://github.com/ethereum/eth1.0-specs/projects/1
• The client’s status tracker (YOLOv2) - https://docs.google.com/spreadsheets/d/1BomvS0hjc88eTfx1b8Ufa6KYS3vMEb2c8TQ5HJWx2lc/edit#gid=408811124
• Summary
  • breakout-room meeting 1 - YOLOv2 EIPs Discussion #204 (comment)
  • breakout-room meeting 2 - Breakout-room discussion #2 Agenda #207 (comment)

[poojaranjan]

Closing in favor of #213