All Core Devs Meeting #14

[Souptacular]

All Core Devs Meeting 14 Agenda

Meeting Date/Time: Friday 4/21/17 at 14:00 UTC

Meeting Duration 1.5 hours

Agenda

1. EIP 186: Reduce ETH issuance before proof-of-stake.
   Carbonvote link.
   Reddit thread #1.
   Reddit thread #2.
2. About EIP86 (a.k.a EIP-208), there is a difference between the EIP pull-request and the implementations. Which should be fixed?
3. Metropolis updates - specifically an update on where each client is at in implementation and an update on the tests. Some accepted EIPs are not yet specific enough to form a protocol consensus. What is the next action by whom?

Please provide comments to add or correct agenda topics.

[vbuterin]

Regarding 2, maybe expand to focus on (i) how much every client has implemented, and (ii) how much there are tests for?

[pirapira]

3. About EIP86 a.k.a eip-208, there is a difference between the EIP pull-request and the implementations. Which should be fixed?

The point is whether to change the addressing scheme of CREATE instruction, in addition to the create transactions.

• EIP86 PR does not change the addressing scheme of CREATE instruction (only the addressing scheme of create transactions change).
• cpp-ethereum is going to change the addressing scheme of CREATE instruction.
• Parity is also going to change CREATE instruction.
• YP PR is also changing CREATE instruction.

[pirapira]

2 (iii) some accepted EIPs are not yet specific enough to form a protocol consensus. What is the next action by whom?

• pairing check (Precompiled contract for pairing check. EIPs#212) has gas costs unspecified. It also uses an already-taken address.
• group addition on elliptic curve (Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128 EIPs#213) has gas costs unspecified. It also used an already-taken address.
• Blockhash and state root changes EIPs#96 has [getter_code] unspecified.

[gumb0]

• removing medstate from receipts - go & cpp implemented option 2, Parity seems to have went with option 1

[Souptacular]

Notes and video added. Closing issues.

https://github.com/ethereum/pm/blob/master/All%20Core%20Devs%20Meetings/Meeting%2014.md